Files
justin a97107de46
Image rebuild (skip scrape) / build (push) Failing after 1h37m12s
docker: production image + Gitea Actions for monthly refresh
Dockerfile: self-contained image with corpus + Chroma + BM25 baked
in. Drawbar's compose pulls + runs without volume mounts. Built from
sources.json (labels schema), PRODUCT_NAME=crop_chem by default,
HYBRID_SEARCH=true (always-on for production quality). RERANK_URL +
OLLAMA_URL get set at compose time.

.gitea/workflows/refresh.yml: monthly cron (1st @ 06:00 UTC) does
full scrape → reindex → image push. Scrapes Bayer (~30 min) +
EPA PPLS row-crop filtered (~7h). Skips reindex+push if no corpus
diff. Tags pushed: :latest, :<sha12>, :corpus-<YYYY.MM.DD>.

.gitea/workflows/image-only.yml: on-demand or auto on code-only
pushes to main (paths: docs_mcp/, rag/, scrape/, requirements.txt,
Dockerfile, sources.json). Reindexes from committed corpus, builds
image, pushes. ~10 min vs ~9h full refresh.

.gitignore: corpus/ now COMMITTED (4,159 labels, 265 MB of .md +
sidecars). Lets image-only.yml rebuild indexes without re-scraping.
chroma/ + bm25/ still gitignored (regenerable binary indexes).

.dockerignore: drops venv, eval results, PLAN/README/CLAUDE.md,
deploy/, .git/ — keeps the image lean. corpus + chroma + bm25
explicitly NOT in dockerignore (those go INTO the image).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-24 12:32:41 -04:00

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# BUCTRIL HERBICIDE
- EPA Reg No: **264-437**
- Registrant: BAYER CROPSCIENCE, LLC
- Signal word: Warning
- Active ingredients: Bromoxynil octanoate (33.4%)
- Label accepted: 2022-12-19
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000264-00437-20221219.pdf
---
UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, DC 20460
OFFICE OF CHEMICAL SAFETY
AND POLLUTION PREVENTION
December 19, 2022
Matthew Graneto
Senior Regulatory Manager
Bayer CropScience
800 N. Lindbergh Blvd.
St. Louis, MO 63167
Subject: Registration Review Label Amendments Incorporating Mitigation Measures from
the Interim Decision for Bromoxynil and the National Marine Fisheries Services
(NMFS) Biological Opinion on the Effects of Bromoxynil on Pacific Salmonids
Product Name: BUCTRIL HERBICIDE
EPA Registration Number: 264-437
Application Dates: 4/17/2020 and 8/26/2021
Decision Numbers: 561924 and 578090
Dear Matthew Graneto:
The Agency, in accordance with the Federal Insecticide, Fungicide and Rodenticide Act
(FIFRA), as amended, has completed reviewing all the information submitted with your
application to support the Registration Review of the above referenced product in connection
with the Bromoxynil Interim Decision. The Agency has concluded that your submission is
acceptable.
This letter also addresses the label mitigation resulting from the NMFS Biological Opinion on
the effects of Bromoxynil on Pacific salmonids. The Agency has concluded that your submission
is also acceptable. The label referred to above, submitted in connection with registration under
FIFRA, as amended, is acceptable.
Should you wish to add/retain a reference to the companys website on your label, then please be
aware that the website becomes labeling under the Federal Insecticide Fungicide and Rodenticide
Act and is subject to review by the Agency. If the website is false or misleading, the product
would be misbranded and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 40
CFR 156.10(a)(5) list examples of statements EPA may consider false or misleading. In addition,
regardless of whether a website is referenced on your products label, claims made on the
website may not substantially differ from those claims approved through the registration process.
Therefore, should the Agency find or if it is brought to our attention that a website contains false
or misleading statements or claims substantially differing from the EPA approved registration,
the website will be referred to the EPAs Office of Enforcement and Compliance.
A stamped copy of your labeling is enclosed for your records. This labeling supersedes
all previously accepted labeling. You must submit one copy of the final printed labeling
Page 2 of 2
EPA Reg. No. 264-437
Decision No. 561924 and 578090
before you release the product for shipment with the new labeling. In accordance with 40
CFR 152.130(c), you may distribute or sell this product under the previously approved
labeling for 12 months from the date of this letter. After 12 months, you may only
distribute or sell this product if it bears this new revised labeling or subsequently
approved labeling. “To distribute or sell” is defined under FIFRA section 2(gg) and its
implementing regulation at 40 CFR 152.3.
If you have any questions about this letter, please contact Quinn Gavin at gavin.quinn@epa.gov.
Sincerely,
Linda Arrington, Branch Chief
Risk Management and Implementation Branch 4
Pesticide Re-Evaluation Division
Office of Pesticide Programs
Enclosure
BUCTRIL
®
HERBICIDE
FOR THE CONTROL OF CERTAIN BROADLEAF WEEDS IN CORN (FIELD AND POP), SORGHUM (GRAIN AND
FORAGE), WHEAT, BARLEY, OATS, RYE AND TRITICALE, SEEDLING ALFALFA, FLAX, GARLIC, ONIONS (DRY
BULB), MINT, GRASSES GROWN FOR SEED AND SOD PRODUCTION, CONSERVATION RESERVE PROGRAM
(CRP) AREAS, NON-RESIDENTIAL TURFGRASS, AND NON-CROPLAND/INDUSTRIAL SITES.
ACTIVE INGREDIENT: Octanoic acid ester of bromoxynil* (3, 5-dibromo-4-hydroxybenzonitrile). ....................33.4%
INERT INGREDIENTS:..........................................................................................................................................66.6%
Contains xylene range/petroleum distillates.
*Bromoxynil octanoate equivalent to 22.9% of bromoxynil or not less than 2.0 pounds of bromoxynil per gallon.
E.P.A. Reg. No. 264-437 E.P.A. Est. No. 264-MO-01
KEEP OUT OF REACH OF CHILDREN
AVISO WARNING
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle.
(If you do not understand the label, find someone to explain it to you in detail.)
For MEDICAL And TRANSPORTATION Emergencies ONLY Call 24 Hours A Day 1-800-334-7577
For PRODUCT USE Information Call 1-888-BAYER (1-888-283-6847)
FIRST AID
IF SWALLOWED: x Immediately call a poison control center or doctor for treatment advice.
x Do not induce vomiting unless told to do so by a poison control center or doctor.
x Do not give any liquid to the person.
x Do not give anything by mouth to an unconscious person.
IF IN EYES: x Hold eye open and rinse slowly and gently with water for 15-20 minutes.
x Remove contact lenses, if present, after the first 5 minutes, then continue rinsing.
x Call a poison control center or doctor for treatment advice.
IF ON SKIN OR
CLOTHING:
x Take off contaminated clothing.
x Rinse skin immediately with plenty of water for 15-20 minutes.
x Call a poison control center or doctor for treatment advice.
IF INHALED: x Move person to fresh air.
x If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably mouth -to-
mouth if possible.
x Call a poison control center or doctor for further treatment advice.
For MEDICAL Emergencies Call 24 Hours A Day 1-800-334-7577.
Have the product container or label with you when calling a poison control center or doctor or going for treatment.
NOTE TO PHYSICIAN: This product may pose an aspiration pneumonia hazard. Contains petroleum distillate.
BROMOXYNIL GROUP 6 HERBICIDE
Dec 19, 2022
264-437
PRECAUTIONARY STATEMENTS
WARNING
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
Causes substantial but temporary eye injury. Do not get in eyes or on skin or clothing. Wear protective eyewear. Harmful if swallowed, or
inhaled. Avoid breathing mist. Prolonged or frequently repeated skin contact may cause allergic reaction in some individuals.
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Applicators and other handlers must wear coveralls over long-sl eeved shirt and long pants, chemical resistant gloves made of ba rrier
laminate or viton gloves, a chemical resistant apron when cleaning equipment, protective eyewear such as goggles, face shield, or safety
glasses, chemical resistant headgear for overhead exposure, and chemical resistant footwear plus socks.
Discard clothing and other absorbent materials that have been dren ched or heavily contaminated with this product's concentrate. Do not
reuse them. Follow manufacturers instructions for cleaning/maintaining PPE . If no such instructions for washables exist, use detergent
and hot water. Keep and wash PPE separately from other laundry.
When handlers use closed systems, enclosed cabs, or aircraft in a manner that meets the requirements listed in the Worker Prote ction
Standard (WPS) for agricultural pesticides (40 CFR 170.240(d)(4-6)), the handler PPE requirements may be reduced or modified as
specified in the WPS.
If you will handle a total of 60 gallons or more of this produc t per day, you must use a mechani cal transfer system for all mix ing and
loading operations. If this product is packaged in a 30-gallon drum , you must use a mechanical transfer system, which terminate s in a
drip-free hard coupling, which may be used only with a spray, or mix tank which has been fitted with a compatible coupling. If you do not
presently own or have access to a mechanical transfer system with this type of coupling, contact your dealer for information on how to
obtain such a system or to modify your present system. When using a mechanical transfer system, do not remove or disconnect the
pump or probe from the container until the container has been empt ied and rinsed. The pump or probe system must be used to rins e the
empty container and to transfer the rinsate directly to the mixing or spray tank.
To reduce exposure to residues, wash the spray rig, tractor, an d all other equipment used to handle or apply this product with water daily
or before using the equipment for any other purpose.
APPLICATION BY CHEMIGATION must be done by fixed pipe, overhead sp rinkler systems or hand moved pipe. If hand moved pipe is
used for chemigation, the pipe must not be handled in any way until 24 hours after chemigation has been completed and residues have
been flushed from the system. When applying by chemigation, no person may enter the application site unless in an enclosed vehicle.
DURING AERIAL APPLICATION, human flaggers are prohibited unless in enclosed vehicles. Aerial application to fallow land is
prohibited within 300 feet of residential areas (e.g., homes, schools, playgrounds, hospitals, shopping areas, etc.).
User Safety Recommendations
Users should wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. User should remove clothing/PP E
immediately if pesticide gets inside. Remove PPE immediately after handling this product. Wash the outside of gloves before rem oving.
As soon as possible, wash thoroughly and change into clean clothing.
ENVIRONMENTAL HAZARDS
This pesticide is toxic to wildlife and fish. Use with care when applying to areas frequented by wildlife or adjacent to any bo dy of water.
For terrestrial uses, do not apply directly to water, or to areas where surface water is present or to intertidal areas below t he mean high
water mark. Do not apply when weather conditions favor drift from target areas. Do not contaminate water when cleaning equipmen t or
disposing of washwaters.
NON-TARGET ORGANISM ADVISORY STATEMENT: This product is toxic to plants and may adversely impact the forage and habitat of
non-target organisms, including pollinators, in areas adjacent to the treated site. Protect the forage and habitat of non-targ et organisms
by following label directions intended to minimize spray drift.
Reporting Ecological Incidents
To report ecological incidents, including mortality, injury, or harm to plants and animals, call [1-866-99BAYER (1-866-992-2937)].
PHYSICAL AND CHEMICAL HAZARDS
Do not use or store near heat or open flame.
DIRECTIONS FOR USE
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.
Read entire label before using this product.
Do not apply this product in a way that will contact workers or other persons, either di rectly or through drift. Only protected handlers may
be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pes ticide
regulation.
Do not apply with backpack or hand-held application equipment.
Apply to non-residential turf only. Do not apply to residential, playground, or schoolyard turf. Do not apply this product to golf course turf.
Use of this product in certain portions of California, Oregon, and Washington is subject to the January 22, 2004 Order for injunctive relief
in Washington Toxics Coalition, et. al. v. EP, C01-0132C, (W.D.WA). For further information, please refer to
http://www.epa.gov/espp/listatus/wtc/index.htm.
Engineering Controls Statements
Handlers must use closed mixing loading systems during mixing/loading liquids for aerial applications to fallow land and high-a creage
field crops.
Endangered Species Protection Requirements: It is a Federal offense to use any pesticide in a manner that results in an unauthorized
“take” (e.g., kill or otherwise harm) of an endangered species and certai n threatened species, under the Endangered Species Act section
9. When using this product, you must follow the measures c ontained in the Endangered Species Protection Bulletin for the area i n which
you are applying the product. You must obtain a Bulletin no earlier than six months before using this product. To obtain Bullet ins, consult
http://www.epa.gov/espp/, call 1-844-447-3813, or email ESPP@epa.go v. You must use the Bulletin valid for the month in which yo u will
apply the product.
AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170. This standard c ontains
requirements for the protection of agricultural workers on farms, forests, nurseries, and greenhouses, and handlers of agricult ural
pesticides. It contains requirements for training, decontamination, notification, and emergency as sistance. It also contains sp ecific
instructions and exceptions pertaining to the statements on th is label about personal protective equipment (PPE) and restricted -entry
intervals. The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard.
Do not enter or allow worker entry into treated crops during the restricted entry interval (REI). Do not enter or allow worker entry into
treated areas during the restricted-entry interval (REI) of 2 da ys for onion, corn, alfalfa, grass, mint and garlic. For all cr ops except turf,
the REI is 24 hours. The REI for harvesting sod farm turf is 12 days. The REI for other turf acti vities is 24 hours. For uses o n turf grown
for transplanting (e.g. on sod farms), notify workers of the application by warning them orally and by posting warning signs at entrances to
treated areas.
PPE required for early entry to treated areas that is permitted und er the Worker Protection Standard and that involves contact with
anything that has been treated, such as plants, soil, or water, is coveralls over long-sleeved shirt and long pants, chemical r esistant
gloves made of barrier laminate or viton gloves, shoes plus socks, and protective eyewear.
NON-AGRICULTURAL USE REQUIREMENTS
The requirements in this box apply to the use of this product on non-residential turfgrass and non-cropland and industrial sit es that are
NOT within the scope of the Worker Protection Standard (WPS) for agricultural pesticides (40 CFR Part 170). The WPS applies when this
product is used to produce agricultural plants on farms, forests, nurseries, or greenhouses.
Do not enter or allow others to enter the treated area until sprays have dried.
USE INFORMATION
BUCTRIL® is formulated as an emulsifiable concentrate of octanoic acid ester of bromoxynil containing the equivalent of 2 pounds of
bromoxynil per gallon.
BUCTRIL is a selective postemergence herbicide for control of im portant broadleaf weeds infesting corn (field and pop), sorghum (grain
and forage), wheat, barley, oats, rye, triticale, alfalfa (seedl ing), flax, onions (dry bulb), garlic, mint (established pepper mint and
spearmint), Conservation Reserve Program (CRP) areas, grasses gr own for seed or sod production, non-residential turfgrass, and non-
cropland and industrial sites. Optimum weed control is obtained whe n BUCTRIL is applied to actively growing weed seedlings. BUC TRIL
is primarily a contact herbicide; therefore, thorough coverage of the weed seedlings is essential for optimum control.
BUCTRIL has little residual activity. Therefore, subsequent fl ushes of weeds will not be controlled by the initial treatment. G enerally,
crops that form a good canopy will help shade subsequent weed flushes. However, certain crops or short-straw varieties, for exa mple
Yaccora Rojo wheat, may not develop the crop canopy fast enough to shade the subsequent flushes of weeds.
Occasional transitory leaf burn may occur. The temporary leaf bu rn is similar to that seen with liquid fertilizer. Because the activity of
BUCTRIL is not systemic, recovery of the crop is generally ra pid with no lasting effect. Frequency and amount of leaf burn may be
greater when crops are stressed by abrasive winds, cool to cold evening temperatures or mechanical injury, such as that caused by hail,
sleet or insect feeding. To reduce the potential for temporary leaf burn, applications should be made to dry foliage in the rec ommended
spray volumes per acre when weather conditions are not extreme.
WEED RESISTANCE-MANAGEMENT
For resistance management, please note that Buctril Herbicide contains a Group 6 herbicide. Any weed population may contain plants
naturally resistant to Group 6 herbicide. The resistant individuals may dominate the weed population if these herbicides are used
repeatedly in the same fields. Appropriate resistance-management strategies should be followed.
To delay herbicide resistance take one or more of the following steps:
x Rotate the use of Buctril Herbicide or other Group 6 herbicides within a growing season sequence or among growing seasons
with different herbicide groups that control the same weeds in a field.
x Use tank mixtures with herbicides from a different group if such use is permitted; where information on resistance in target weed
species is available, use the less resistance-prone partner at a rate that will control the target weed(s) equally as well as the
more resistance-prone partner. Consult your local extension service or certified crop advisor if you are unsure as to which active
ingredient is currently less prone to resistance.
x Adopt an integrated weed-management program for herbicide use that includes scouting and uses historical information related
to herbicide use and crop rotation, and that considers tillage ( or other mechanical control methods), cultural ( e.g., higher crop
seeding rates; precision fertilizer application method and timing to favor the crop and not the weeds), biological (weed-
competitive crops or varieties) and other management practices.
x Scout after herbicide application to monitor weed populations for early signs of resistance development. Indicators of possibl e
herbicide resistance include: (1) failure to control a weed species normally controlled by the herbicide at the dose applied,
especially if control is achieved on adjacent weeds; (2) a spreading patch of non-controlled plants of a particular weed species;
(3) surviving plants mixed with controlled individuals of the same species. If resistance is suspected, prevent weed seed
production in the affected area by an alternative herbicide from a different group or by a mechanical method such as hoeing or
tillage. Prevent movement of resistant weed seeds to other fields by cleaning harvesting and tillage equipment when moving
between fields, and planting clean seed.
x If a weed pest population continues to progress after treatment with this product, discontinue use of this product, and switch to
another management strategy or herbicide with a different mode of action, if available.
x Contact your local extension specialist or certified crop advisors for additional pesticide resistance-management and/or
integrated weed-management recommendations for specific crops and weed biotypes.
x For further information or to report suspected resistance co ntact Bayer CropScience at 1-866-99BAYER (1-866-992-2937). You
can also contact your pesticide distributor or university extension specialist to report resistance.
MIXING, LOADING AND HANDLING INSTRUCTIONS
2.5 Gallon Containers
Special care must be taken in mixing and loading this product. Hands should be placed on the container in such a way as to avoi d
possible drip or splash. Correct procedures for mixing and loading are provided in Bayer CropSciences Educational Program.
30 Gallon and Bulk Containers
If you will handle a total of 60 gallons or more of this produc t per day, you must use a mechani cal transfer system for all mix ing and
loading operations. If this product is packaged in a 30-gallon drum , you must use a mechanical transfer system, which terminate s in a
drip-free hard coupling, which may be used only with a spray, or mix tank which has been fitted with a compatible coupling. If you do not
presently own or have access to a mechanical transfer system with this type of coupling, contact your dealer for information on how to
obtain such a system or to modify your present system. When using a mechanical transfer system, do not remove or disconnect the
pump or probe from the container until the container has been empt ied and rinsed. The pump or probe system must be used to rins e the
empty container and to transfer the rinsate directly to the mixing or spray tank.
BUCTRIL ALONE: Fill the spray tank 1/2 to 3/4 full with clean water. Begi n agitation and add the specified amount of BUCTRIL. Add
water to the spray tank to the desired level. Maintain sufficient agitation to ensure a uniform spray mixture during application.
TANK MIXTURES: BUCTRIL can be tank-mixed with other pesticide products provided that these other products are registered for use
on the crop/use site to be treated. The tank mix must be used in accordance with the more restrictive pesticide label limitatio ns and
precautions. No label dosage rates may be exceeded. BUCTRIL cannot be mixed with any product containing a label prohibition against
such mixing. To apply BUCTRIL in mixture with another product, fi ll the spray tank 1/2 to 3/4 full with clean water and begin a gitation. If
tank mixing with wettable powder, soluble powder, flowable or dr y flowable products, add the pow der or flowable product first. After the
other herbicide is thoroughly mixed with water, add the specified am ount of BUCTRIL and add water to the spray tank to the desi red
level. If tank mixing with other product types, add the BUCTRIL first before adding the other product. Always mix one product i n water
thoroughly before adding another product or compatibility problems may occur. Never mix two products together without first mix ing in
water.
Maintain sufficient agitation while mixing and during application to ensure a uniform spray mixture. If spray mixture is allowe d to remain
without agitation for short periods of time, be sure to agitate until uniformly mixed before application.
COMPATIBILITY OF OTHER PESTICIDES WITH BUCTRIL
The following pesticides are compatible with BUCTRIL Herbicide as tank mixtures.
INSECTICIDE
COMMON NAME
TRADE NAME
FORMULATION
Acephate Orthene® Soluble Powder
Amitraz Ovasyn® Emulsifiable Concentrate
Azinphos-methyl Guthion® Liquid
Carbaryl Sevin® Sprayable wettable powder or Flowable
Carbofuran Furadan® Flowable
Chlorpyrifos Lorsban® Emulsifiable Concentrate
Cyfluthrin Baythroid® Emulsifiable Concentrate
Deltamethrin Decis® Emulsifiable Concentrate
Diazinon Various Emulsifiable Concentrate
Dicrotophos Bidrin® Emulsifiable Concentrate
Dimethoate Various Emulsifiable Concentrate
Esfenvalerate Asana XL® Emulsifiable Concentrate
Fenvalerate Pydrin® Emulsifiable Concentrate
Imidacloprid Provado® Flowable
Lambda-Cyhalothrin Karate® Emulsifiable Concentrate
Malathion Various Emulsifiable Concentrate
Methomyl Lannate® Liquid
Methyl Parathion Methyl Parathion® Emulsifiable Concentrate
Methyl Parathion Penncap-M® Flowable
Oxamyl Vydate® Liquid
Oxydemeton-methyl Metasystox-R® Sprayable Concentrate
Permethrin Pounce® Emulsifiable Concentrate
Thiodicarb Larvin® Flowable
Trichlorfon Dylox® Soluble Powder
Zeta-Cypermethrin Fury® Emulsifiable Concentrate
HERBICIDE COMMON NAME TRADE NAME FORMULATION
MSMA* MSMA®
Prometryn Caparol® Liquid
Pyrithiobac-Sodium Staple® Soluble Powder
* Note that MSMA cannot be used after December 2013
PLANT GROWTH REGULATORS
COMMON NAME
TRADE NAME
FORMULATION
Mepiquat Chloride Pix® Liquid Concentrate
Mepiquat Chloride MEP® Liquid Concentrate
Mepiquat Chloride + Bacillus cereus Mep Plus® Liquid Concentrate
If tank mixing with products other than those listed above or wit hin each crop section, a compat ibility test is recommended to ensure
satisfactory spray preparation. To test for compatibility, use a small container and mix a small amount (0.5 to 1 quart) of spr ay, combining
all ingredients in the same ratio as the anticipated use. If any indications of physical incompatibility develop, do not use th is mixture for
spraying. Indications of incompatibility usually will appear within 5 to 15 minutes after mixing. To ensure maximum crop safety and weed
control, follow all cautions and limitations on this label and the labels of products used in the tank mixture with BUCTRIL.
SPRAYABLE LIQUID FERTILIZERS AND SPRAY ADDITIVES
BUCTRIL can be applied in combination with sprayable liquid ferti lizer or spray additives such as surfactants or crop oil conce ntrate.
When tank mixing with liquid fertilizer always add the fertilizer to the spray tank first and agitate thoroughly before adding BUCTRIL.
Always predetermine the compatibility with liquid fertilizer by mixing small proportional quantities in advance. Agitation must be
maintained during filling and application operations to ensure that BUCTRIL is evenly mixed with the fertilizer. Leaf burn may occur when
BUCTRIL is applied with liquid fertilizer, but new leaves are not adversely affected.
CAUTION: Fertilizers and spray additives can in crease foliage leaf burn when applied with BUCTRIL . Do not apply fertilizers or spray
additives with BUCTRIL if leaf burn is a major concern due to env ironmental conditions, crop or variety sensitivity to BUCTRIL. Do not
apply BUCTRIL in combination with fertilizers or spray additives if restricted under the individual crop use directions.
APPLICATION PROCEDURES
BUCTRIL can be applied to registered use areas by ground, aeri al and sprinkler irrigation equipment. The following provides reg istered
methods of application for each crop.
TYPE OF APPLICATION EQUIPMENT
CROP
GROUND
AERIAL
SPRINKLER
IRRIGATION
Corn, (field and pop) X X X
Sorghum (grain and
forage), and Sudangrass
X X X
Wheat, Barley, Oats, Rye,
and Triticale
X X X
Alfalfa (seedling) X X X
Flax X X -
Garlic X X X
Mint X - X
Onions (dry bulb) X X* X
Grass grown for seed or
sod production
X X X
Conservation Reserve
Program (CRP) areas
X X X
Non-residential turfgrass X X -
Non-cropland/Industrial
sites
X X -
(X) indicates registered application use
* Preemergence only
GROUND APPLICATION
Use a standard herbicide boom sprayer that provides uniform and accurate application. Sprayer should be equipped with screens no finer
than 50 mesh in the nozzle tips and in-line strainers.
Select a spray volume and delivery system that will ensure thorough and uniform spray coverage. For optimum spray, distribution and
thorough coverage use of flat fan nozzles (maximum tip size 8008) with a spray pressure of 40-60 psi are recommended. Other noz zle
types and lower spray pressures that produce coarse spray drop lets may not provide adequate coverage of the weeds to ensure
optimum control. Raindrop
® nozzles and flood nozzles are not recommended as weed control with BUCTRIL may be reduced.
In general, a spray volume of 10 to 20 gallons per acre (GPA) is recommended for optimum spray coverage. A minimum of 5 GPA wit h a
minimum spray pressure of 50 psi and a maximum ground speed of 10 mph may be used with higher speed, low volume ground
application if ground terrain, crop and weed density allow effective spray distribution. When using higher speed equipment, a m aximum
ground speed of 10 mph is suggested if field conditions cause excessive boom movement during application which results in poor spray
coverage. Ground applications made when dry, dusty field conditions exist may provide reduced weed control in wheel track areas .
Applications using less than 10 gallons per acre may result in reduced weed control.
When weed infestations are heavy, use of higher spray volumes and spray pressure will be helpful in obtaining uniform weed cove rage.
When corn or grain sorghum are large enough to interfere with th e spray pattern, drop nozzles should be used to obtain uniform weed
coverage. If you are unsure of the infestation level or size of crop, consult your local extension service.
AERIAL APPLICATION
Use orifice discs, cores and nozzle types and arrangements that will provide for optimum spray distribution and maximum coverag e. In
general, a minimum spray volume of 5 GPA and a maximum pressure of 40 psi are recommended.
SPRINKLER IRRIGATION APPLICATION
BUCTRIL Herbicide can be applied through sprinkler irrigation syst ems to wheat, barley, oats, rye and triticale, field corn, po pcorn, and
grain sorghum, mint, grasses grown for seed or sod production, garlic, onions (dry bulb) and seedling alfalfa.
Apply BUCTRIL Herbicide through sprinkler systems including cent er pivot, lateral move, side (wheel) roll, solid set, or hand move
irrigation systems only. If hand moved pipe is used for chemigation, the pipe must not be handled in any way until 24 hours aft er
chemigation has been completed and residues have been flushed from the system. When applying by chemigation, no person may ente r
the application site unless in an enclosed vehicle. Do not apply this product through any other type of irrigation system.
SPECIFIC REQUIREMENTS FOR APPLICATION THROUGH AUTOMATED SPRINKLER IRRIGATION SYSTEM.
1. The system must contain a functional check valve, vacuum re lief valve, and low-pressure drain appropriately located on the
irrigation pipeline to prevent water source contamination from backflow.
2. The pesticide injection pipeline must contain a functional, aut omatic, quick-closing check valve to prevent the flow of flui d back
toward the injection pump.
3. The pesticide injection pipeline must also contain a functiona l, normally closed, solenoid-operated valve located on the int ake side
of the injection pump and connected to the system interlock to pr event fluid from being withdrawn from the supply tank when the
irrigation system is either automatically or manually shut down.
4. The system must contain functional interlocking controls to au tomatically shut off the pesticide injection pump when the water pump
motor stops.
5. The irrigation line or water pump must include a functional pressure switch, which will stop the water pump motor when the w ater
pressure decreases to the point where pesticide distribution is adversely affected.
6. Systems must use a metering pump, such as a positive displacement injection pump (e.g., diaphragm pump) effectively designed
and constructed of materials that are compatible with pesticides and capable of being fitted with a system interlock.
7. Do not apply when wind speed favors drift beyond the area intended for treatment.
8. Agitation is recommended in the pesticide supply tank when applying the BUCTRIL Herbicide.
9. BUCTRIL Herbicide should be applied continuously for the durati on of the water application with center pivot and continuous lateral
move systems. Application of BUCTRIL Herbicide should be made during the last 30-45 minutes of the irrigation set with other
overhead sprinkler systems.
10. For best performance, set the sprinkler system to deliver approximately 0.5 inch or less of water per acre.
11. Remove scale, pesticide residues, and other foreign matter from the supply tank and entire injector system. Flush with clean water.
12. If BUCTRIL Herbicide is diluted in the supply tank, fill the ta nk with half of the water amount desired, add the BUCTRIL, a nd then
add remaining water amount with agitation. Always dilute with at least 4 parts water to 1 part BUCTRIL.
13. Start the sprinklers and then inject BUCTRIL Herbicide into the irrigation line. BUCTRIL should be injected with a positive
displacement pump into the main line at least 8 feet ahead of a right angle turn to insure adequate mixing. Refer to the BUCTRI L
Herbicide label for detailed information on application rates and timings.
CHEMIGATION USER PRECAUTIONS
Application of more than 0.5 inch/acre of irrigation water may result in decreased product performance on certain soils.
Do not apply when conditions favor drift, when system connections or fittings leak, or when nozzles do not provide uniform distribution.
Allow sufficient time for pesticide to be flushed through all the lines and nozzles before turning off irrigation water.
Crop injury, lack of effectiveness, or illegal pesticide residues in the crop can result from non-uniform distribution of treated water.
Do not connect an irrigation system used for pesticide application to a public water system.
If you have questions about calibration, you should contact Stat e Extension Service specialists, equipment manufacturers or oth er
experts.
A person knowledgeable of the chemigation system and responsible for its operations, or under the supervision of the responsibl e
person, shall shut the system down and make necessary adjustments should the need arise.
CULTIVATION
When properly utilized, timely cultivations of row crops may ai d overall weed control efforts as well as crop growth. However, cultivation
BEFORE or DURING BUCTRIL applications may place target weeds under stress, resulting in erratic weed control. Whenever BUCTRIL
is being utilized in an overall weed control program, plan to postpone any anticipated cultivations until 5-7 days after application to ensure
best performance.
SPRAY DRIFT MANAGEMENT
Mandatory Spray Drift Management
Aerial Applications
x Do not release spray at a height greater than 10 ft above the ground or vegetative canopy,
unless a greater application height is necessary for pilot safety.
x Applicators are required to use a fine or coarser droplet size (ASABE S641).
x Do not apply when wind speeds exceed 10 mph at the application site.
x The boom length must be 75% or less of the wingspan for fixed-wing aircraft and 90% or less of the rotor
diameter for helicopters.
x Applicators must use ½ swath displacement upwind at the downwind edge of the field.
x Do not apply during temperature inversions.
Ground Boom Applications
x User must only apply with the release height recommended by the manufacturer, but no more than 4 feet
above the ground or crop canopy.
x Do not apply when wind speeds exceed 10 mph at the application site.
x Do not apply during temperature inversions.
SPRAY DRIFT ADVISORIES
THE APPLICATOR IS RESPONSIBLE FOR AVOIDING OFF-SITE SPRAY DRIFT.
BE AWARE OF NEARBY NON-TARGET SITES AND ENVIRONMENTAL CONDITIONS.
Importance Of Droplet Size
An effective way to reduce spray drift is to apply large droplets. Use the largest droplets that provide target pest control. While applying
larger droplets will reduce spray drift, the potential for drift will be greater if applications are made improperly or under unfavorable
environmental conditions.
Controlling Droplet Size - Ground Boom
x Volume - Increasing the spray volume so that larger drop lets are produced will reduce spray drift. Use the highest
x practical spray volume for the application. If a greater spray volume is needed, consider using a nozzle with a higher
x flow rate.
x Pressure - Use the lowest spray pressure recommended for the nozzle to produce the target spray volume and
x droplet size.
x Spray Nozzle - Use a spray nozzle that is designed for the intended application. Consider using nozzles designed to reduce
drift.
Controlling Droplet Size - Aircraft
Adjust Nozzles - Follow nozzle manufacturers recommendations for setting up nozzles. Generally, to reduce fine droplets, nozzles should
be oriented parallel with the airflow in flight.
Boom Height - Ground Boom
For ground equipment, the boom should remain level with the crop and have minimal bounce.
Release Height - Aircraft
Higher release heights increase the potential for spray drift.
Shielded Sprayers
Shielding the boom or individual nozzles can reduce spray drift. Consider using shielded sprayers. Verify that the shields are not
interfering with the uniform deposition of the spray on the target area.
Temperature And Humidity
When making applications in hot and dry conditions, use larger droplets to reduce effects of evaporation.
Temperature Inversions
Drift potential is high during a temperature inversion. Temperature inversions are characterized by increasing temperature with altitude
and are common on nights with limited cloud cover and light to no wind. The presence of an inversion can be indicated by ground fog or
by the movement of smoke from a ground source or an aircraft smoke generator. Smoke that layers and moves laterally in a
concentrated cloud (under low wind conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates
good vertical air mixing.
Wind
Drift potential generally increases with wind speed. AVOID APPLICATIONS DURING GUSTY WIND CONDITIONS. Applicators need to
be familiar with local wind patterns and terrain that could affect spray drift.
WEED LIST
Postemergence application of BUCTRIL Herbicide will control the following weeds when sprayed in the seedling stage. Maximum wee d
stage of growth is listed under USES for each crop.
MOST SUSCEPTIBLE BROADLEAF WEED SPECIES
Annual Sowthistle (Sonchus oleraceus)
Black Nightshade (Solanum nigrum)
Blue Mustard (Chorispora tenella)
Bristly starbur (Acanthospermum hispidum)
Coast Fiddleneck (Amsinckia intermedia)
Common Cocklebur (Xanthium strumarium)
Common Lambsquarters (Chenopodium album)
Common Tarweed (Hemizonia congesta)
Cutleaf Nightshade (Solanum triflorum)
Eastern Black Nightshade (Solanum ptycanthum)
Field Pennycress (Thlaspi arvense)
Green Smartweed (Polygonum scabrum)
Hairy Nightshade (Solanum sarachoides)
Jimsonweed (Datura stramonium)
Ladysthumb (Polygonum persicaria)
Lanceleaf sage * (Salvia reflexa)
Pennsylvania Smartweed (Polygonum pensylvanicum
Pepperweed spp. (annual) (Lepidium spp.)
Shepherdspurse (Capsella bursa-pastoris)
Silverleaf Nightshade (Solanum elaeagnifolium)
Tartary Buckwheat (Fagopyrum tatoricum)
1Sunflower (Helianthus annuus)
Wild Buckwheat (Polygonum convolvulus)
1For control of sunflower, delay application until first emerging
sunflower seedlings are 4 inches in height.
* Not registered for use in California.
SUSCEPTIBLE BROADLEAF WEED SPECIES
Buffalobur (Solanum rostratum)
Burcucumber ( Sicyos angulatus)
Cluster Flower (Flaveria trinervia)
Common Groundsel (Senecio vulgaris)
Common ragweed (Ambrosia artemisiifolia)
Corn Chamomile (Anthemis arvensis)
Corn Gromwell (Lithospermum arvense)
Cow Cockle (Saponaria vaccaria)
Devils claw (Proboscidea louisianica)
Giant Ragweed (Ambrosia trifida)
Hemp Sesbania (Sesbania exaltata)
Hophornbean Copperleaf (Acalypha ostryaefolia)
Ivyleaf morningglory (Ipomoea hederacea)
Knawel (Scleranthus annus)
2Kochia (Kochia scoparia)
London Rocket (Sisymbrium irio)
Mayweed (Anthemis cotula)
Pitted morningglory ( Ipomoea lacunosa)
Prairie sunflower (Helianthus petiolaris)
Prostrate Knotweed (Polygonum aviculare)
Puncture Vine (Tribulus terrestris)
2Redroot Pigweed (Amaranthus retroflexus)
Russian thistle (Salsola kali)
2Spiny Pigweed (Amaranthus spinosus)
Tall Morningglory (Ipomoea purpurea)
2Tall Waterhemp (Amaranthus tuberculatus)
Tumble mustard (Sisymbrium altissimum)
Velvetleaf (Abutilon theophrasti)
Venice Mallow (Hibiscus trionum)
Wild Mustard (Sinapis arvensis)
Wild Radish (Raphanus raphanistrum)
Woolly Croton (Croton capitatus)
Yellow Starthistle (Centaurea solstitialis)
2 For effective control, these weeds should not exceed the 4-leaf
stage or 2 inches in height, whichever comes first.
WEED SUPPRESSION
BUCTRIL suppresses the growth of Canada thistle (Cirsium arvense) by burning down top growth. Regrowth may occur.
CALIFORNIA REGISTRATIONS
Only the following directions referenced in this label are regi stered for use in California: seedling alfalfa, small grains (w heat, barley,
oats, rye and triticale), flax, corn (post emergence applicati on only), sorghum (post emergence application only), mint, onions , garlic;
chemigation in seedling alfalfa, small grains, onions and garlic; 2,4-D and MCPA tank mixtures in small grains; 2,4-D and atraz ine tank
mixtures in corn and sorghum; 2,4-DB and Pursuit tank mixtures in seedling alfalfa; grass for seed and sod production, non-resi dential
turfgrass; and non-cropland and industrial sites. All applications must be made with a minimum spray volume of 10 GPA by ground or 5
GPA by air equipment.
SPECIFIC CROP DIRECTIONS
CEREAL GRAIN CROPS
Corn (Field and Pop), Sorghum (Grain and Forage), Sudangrass,
Wheat, Barley, Oats, Rye, and Triticale
FORAGE, FIBER AND SPECIALTY CROPS
Alfalfa (Seedling)
10
Flax
Garlic
Mint (Established Peppermint and Spearmint)
Onions (dry bulb)
GRASS CROPS
Conservation Reserve Program (CRP) Areas
Grass Grown for Seed or Sod Production
Non-Residential Turfgrass
NON-CROPLAND
Non-cropland and Industrial Sites
CEREAL GRAIN CROPS
CORN (FIELD AND POP), SORGHUM (GRAIN AND FORAGE), AND SUDANGRASS
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL Preemergence
1-1 1/2 pints/A
Apply to corn or sorghum before
planting until just prior to crop
emergence.
See CORN AND SORGHUM
APPLICATION RATE TABLE -
BUCTRIL for list of weeds and
corresponding stages of growth that
1 pint/A Apply to corn after emergence but
prior to tassel emergence.
are controlled by BUCTRIL at
specified rates of application. For
control of additional weeds not
Apply to sorghum and sudangrass
between the 3-leaf stage but prior to
the preboot stage (growth stage 4).
listed in the rate table see the WEED
LIST.
1 1/2 pints/A Apply to corn between the 4-leaf stage
and prior to tassel emergence.
Apply to sorghum and sudangrass
between the 4-leaf stage but prior to
preboot stage (growth stage 4).
2 Pints/A Apply to field corn only between the 4-
leaf stage but prior to tassel
emergence. WARNING: DO NOT
APPLY THE 2 PINTS/A RATE OF
BUCTRIL ALONE OR IN TANK-
MIXTURES TO SORGHUM.
Use the 2 pints/A rate on corn to
control susceptible weeds that are
growing under less than optimum
conditions and where BUCTRIL +
atrazine tank mixtures cannot be
used.
Chemigation
2 pints/A only
Apply to corn after emergence but
prior to tassel emergence.
Apply to sorghum and sudangrass
after emergence but prior to preboot
stage (growth stage 4).
Apply through automated sprinkler
irrigation systems with a mechanical
transfer loading system only . See
MIXING, LOADING AND HANDLING
INSTRUCTIONS section for complete
details.
Apply to MOST SUSCEPTIBLE
broadleaf weeds up to the 8-leaf stage
or 4 inches in height or 2 inches in
diameter, whichever comes first.
Apply to
SUSCEPTIBLE broadleaf
weeds up to the 4-leaf stage, 2 inches
in height or 1 inch in diameter,
whichever comes first . Do not use
chemigation for control of weeds that
exceed 4 inches in height because
control may be unacceptable.
11
CORN AND SORGHUM APPLICATION RATE TABLE - BUCTRIL
WEED SPECIES 1 1 Pint/A 1 1/2 to 2 Pints/A 4
When determining leaf stage, M ax. Max. Weed Max. Max. Weed
count all leaves except Leaf Height Leaf Height
cotyledonary leaves Stage (inches) Stage (inches)
Black Nightshade (Solanum nigrum) 6 6 6 6
Buffalobur (Solanum rostratum) 4 2 6 4
Burcucumber (Sicyos angulatus) - - 4 4
Common Cocklebur (Xanthium strumarium) 6 8 8 10
Common Lambsquarters (Chenopodium album) - 6 - 8
Common Ragweed (Ambrosia artemisiifolia) 6 4 8 6
Eastern Black Nightshade (Solanum ptycanthum) 6 6 6 6
Giant Ragweed (Ambrosia trifida) 6 4 6 6
Hemp Sesbania (Sesbania exaltata) - - 4 4
Ivyleaf Morningglory (Ipomoea hederacea) 3 3 4 4
Jimsonweed (Datura stramonium) 4 4 6 6
Kochia (Kochia scoparia) - - - 2
Ladysthumb (Polygonum persicaria) 4 4 6 6
Pennsylvania Smartweed (Polygonum pensylvanicum) 4 4 6 6
Pitted Morningglory * (Ipomoea lacunosa) 3 3 4 4
Redroot Pigweed3 (Amaranthus retroflexus) - - 4 2
Spiny Pigweed3 (Amaranthus spinosus) - - 4 2
Sunflower (Helianthus annus) 4 6 6 8
Tall Morningglory (Ipomoea purpurea) 3 3 4 4
Tall Waterhemp3 (Amaranthus tuberculatus) - - 4 2
Velvetleaf (Abutilon theophrasti) 4 3 6 5
Venice Mallow (Hibiscus trionum) - - 4 2
Wild Buckwheat (Polygonum convolvulus) 4 6 6 8
Wild Mustard (Sinapis arvensis) - - 4 4
WEEDS SUPPRESSED2
Canada Thistle (Cirsium arvense) Not Recommended 8 inch to bud stage
1. When determining leaf stage, count all leaves except cotyledonary leaves.
2. BUCTRIL suppresses the growth by burning down of top growth. Regrowth may occur.
3. Control of pigweeds in the high plains areas of Texas and Oklahoma may not be satisfactory with BUCTRIL Herbicide. Repeat
applications may be necessary to achieve satisfactory control.
4. 4. Do not apply BUCTRIL at the 2 pints/A rate to sorghum
* Not registered for use in California.
BUCTRIL TANK MIXTURE DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
atrazine
Preemergence
3/4-1 1/2 pints/A
+
1/2-1 1/5 lb ai/A
Apply to corn or sorghum before
planting until just prior to crop
emergence.
See CORN AND SORGHUM
APPLICATION RATE TABLE -
BUCTRIL
+ ATRAZINE TANK
MIXTURES for list of weeds and
corresponding stages of growth that
3/4-1 pint/A
+
1/2-1 1/5 lb ai/A
Apply to corn after emergence but
before corn is 12
inches tall.
Apply to sorghum between the 3-leaf
stage but prior to the preboot stage
(growth stage 4) or 12 inches in
height, whichever comes first.
are controlled by BUCTRIL+ Atrazine
tank mixtures at specified rates of
application. For control of additional
weeds not listed in the rate table, see
the WEED LIST.
1 1/2 pints/A
+
1/2-1 1/5 lb ai/A
Apply to corn between the 4-leaf stage
and before corn is 12 inches tall.
Apply to sorghum between the 4-leaf
stage but prior to the preboot stage
(growth stage 4) or 12 inches in
height, whichever comes first.
12
ATRAZINE TANK MIX RESTRICTIONS
Atrazine is a Restricted Use Herbicide due to ground water concerns; users must read and follow all precautionary statements and
instructions on the atrazine label in order to minimize the potential for atrazine to reach ground water.
CORN (FIELD AND POP) AND SORGHUM (GRAIN AND FORAGE) (continued)
CORN AND SORGHUM APPLICATION RATE TABLE - BUCTRIL + ATRAZINE TANK MIXTURES
WEED SPECIES1 BUCTRIL AND ATRAZINE RATE (TANK MIX)
When determining leaf stage, count all
leaves except cotyledonary leaves
3/4 Pint/A
+
1/2 lb ai/A
3/4 Pint/A
+
1 1/5 lb ai/A
1 Pint/A
+
1/2 lb ai/A
1 Pint/A
+
1 1/5 lb ai/A
1 1/2 Pint/A
+
1/2 lb ai/A
1 1/2 Pint/A
+
1 1/5 lb ai/A
MAX
LEAF
STAGE
MAX
WEED
HEIGHT
MAX
LEAF
STAGE
MAX
WEED
HEIGHT
MAX
LEAF
STAGE
MAX
WEED
HEIGHT
MAX
LEAF
STAGE
MAX
WEED
HEIGHT
MAX
LEAF
STAGE
MAX
WEED
HEIGHT
MAX
LEAF
STAGE
MAX
WEED
HEIGHT
Black Nightshade (Solanum nigrum) 4 4 4 4 6 6 6 6 6 6 6 6
Buffalobur (Solanum rostratum) 4 4 4 4 6 4 6 4 6 4 6 4
Burcucumber (Sicyos angulatus) 4 4 4 4 4 4 6 6 6 6 6 6
Common Cocklebur (Xanthium
strumarium)
6 8 8 10 8 10 10 12 10 12 10 12
Common Lambsquarters (Chenopodium album) - 6 - 10 - 10 - 12 - 12 - 12
Common Ragweed (Ambrosia
artemisiifolia)
6 4 8 6 8 6 8 6 8 6 8 6
Eastern Black Nightshade (Solanum ptycanthum) 4 4 4 4 6 6 6 6 6 6 6 6
Entireleaf Morningglory (Ipomoea hederacea) - - 4 3 4 3 4 3 4 3 4 3
Giant Ragweed (Ambrosia trifida) 4 6 6 8 6 8 6 8 8 10 8 10
Hemp Sesbania (Sesbania exaltata) 4 4 4 4 4 4 4 4 4 4 4 4
Ivyleaf Morningglory (Ipomoea hederacea) 3 3 4 4 4 4 4 4 4 4 4 4
Jimsonweed (Datura stramonium) 4 4 4 4 6 6 6 6 6 6 6 6
Kochia (Kochia scoparia) - 2 - 2 - 2 - 2 - 4 - 4
Ladysthumb (Polygonum
persicaria)
4 4 4 4 6 6 8 8 8 8 8 8
Marestail * (Conyza canadensis) - - - 3 - 5 - 5 - 5 - 5
Palmleaf Morningglory (Ipomoea wrightii) - - 4 3 4 3 4 3 4 3 4 3
Pennsylvania Smartweed (Polygonum
strumarium)
4 4 4 4 6 6 8 8 8 8 8 8
Pitted Morningglory * (Ipomoea lacunosa) 3 3 4 4 4 4 4 4 4 4 4 4
Pokeweed * (Phytolacca
americana)
- - 4 4 6 6 6 6 6 6 6 6
Prickly Sida (Sida Spinosus) - - 6 2 4 1 6 2 4 1 6 2
Puncturevine (Tribulus terrestris) - - - - - - 6 4 6 4 6 4
Purple Morningglory (Ipomoea muricata) - - 2 3 2 3 2 3 2 3 2 3
Redroot Pigweed3 (Amaranthus
retroflexus)
4 2 8 6 6 4 8 6 6 4 8 6
Smallflower Morningglory (Jacquemontia
tamnifolia)
- - 4 3 4 3 4 3 4 3 4 3
Smooth Pigweed3 (Amaranthus hybridus) 4 2 6 4 4 2 6 4 6 4 6 4
Spiny Pigweed3 (Amaranthus
spinosus)
4 2 8 6 6 4 8 6 6 4 8 6
Sunflower (Helianthus annus) 6 8 8 10 8 10 10 12 10 12 10 12
Tall Morningglory (Ipomoea purpurea) 3 3 4 4 4 4 4 4 4 4 4 4
Tall Waterhemp3 (Amaranthus
tuberculatus)
4 2 8 6 6 4 8 6 6 4 8 6
Toothed Spurge (Euphorbia dentata) 2 2 2 2 4 4 4 4 4 4 4 4
Velvetleaf (Abutilon theophrasti) 4 3 4 3 6 5 6 5 8 6 8 6
Venice Mallow (Hibiscus trionum) 4 2 4 2 4 2 4 2 4 2 4 2
Wild Buckwheat (Polygonum
convolvulus)
6 8 8 10 8 10 10 12 10 12 10 12
Wild Mustard (Sinapis arvensis) 4 4 4 4 4 4 4 4 4 4 4 4
WEEDS SUPPRESSED2
Canada thistle (Cirsium arvense) Not
Recommended
Not
Recommended
8"-bud
8"-bud
8"-bud
8"-bud
1 When determining leaf stage, count all leaves except cotyledonary leaves.
2 Selected rates of BUCTRIL + atrazine tank mixtures suppress the growth by burning down of top growth. Regrowth may occur.
3 If pigweeds (Amaranthus sp.) present in the field to be treated have been identifie d as triazine resistant biotypes, use BUCTRIL at 1
1/2 pints/A in a tank mixture with atrazine at 1/2 or 1 1/5 lb ai/A. Applications should be made when pigweeds do not exceed th e 4-
leaf stage and 2 inches in height. Control of pigweeds in the hi gh plains areas of Texas and Oklahoma may not be satisfactory w ith
BUCTRIL + atrazine tank mixtures. Repeat applications may be necessary to achieve satisfactory control, but do not exceed
maximum application rates.
* Not registered for use in California.
13
ATRAZINE CONVERSION TABLE1/
ATRAZINE RATE ATRAZINE
ATRAZINE POUNDS OF ACTIVE FORMULATION
FORMULATION INGREDIENT PER ACRE RATE PER ACRE
Atrazine 4L 1/2 1 Pint
1 1/5 2 2/5 Pints
Atrazine 70WP 1/2 5/8 Pound
1 1/5 1 1/2 Pounds
Aatrex® Nine-O 1/2 3/5 Pound
1 1/5 1 1/3 Pounds
1/Follow all precautions and limitations on the labels of products used in tank mixture with BUCTRIL.
SPECIAL USE DIRECTIONS FOR OTHER WEED PROBLEMS IN CORN AND SORGHUM
Large Common Cocklebur, Common Lambsquarters, and Sunflower
For control of common cocklebur and common lambsquarters up to 14 inches in height and sunflower up to 18 inches in height, use a
postemergence application of BUCTRIL at 1 pint/A. Make a second application of BUCTRIL at the same rate 7 to 10 days later.
Large Velvetleaf
For control of velvetleaf up to 14 inches in height, use postemer gence application of BUCTRIL at 1 1/2 - 2 pints/A or BUCTRIL +
atrazine tank mixture at 1 pint/A + 1 1/5 lb ai/A. Make a second application of BUCTRIL at 1 pint/A 7 to 10 days later, but do not exceed
a total of 2 pints/A of BUCTRIL per season on corn (field and pop).
Canada Thistle Management
For effective management of Canada thistle, the following BUCTRIL treatments should be applied to thistle from 8 inch to the bud stage
for in-season burn down of top growth:
BUCTRIL at 1 1/2-2 pints/A
BUCTRIL at 1 - 1 1/2 pints/A + atrazine at 1/2 - 1 1/5 lbs ai/A
BUCTRIL at 1 - 1 1/2 pints/A + Banvel ® or Clarity® at 1/4 - 1/2 pint/A
BUCTRIL at 1 - 1 1/2 pints/A + atra zine at 1/2 -1 1/5 lbs ai/A + Banvel® or Clarity® at 1/8 - 1/4 pint/A
BUCTRIL at 1 - 1 1/2 pints/A + 2, 4-D at 1/8 - 1/4 lb ai/A
BUCTRIL at 1 - 1 1/2 pints/A + atrazine at 1/2 - 1 1/5 lbs ai/A + 2, 4-D at 1/8 - 1/4 lb ai/A
If possible, follow with cultivation 14-21 days afte r treatment. In the fall apply 2,4-D (such as Weedone ® 638), Banvel ®, Clarity ®, or
Roundup® at specific rates to Canada thistle 4-8 inches tall prior to killing frost. Follow with a similar control program in next years
rotational crop.
ADDITIONAL BUCTRIL
® TANK MIXTURE DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Banvel®1
1 pint/A
+
1/8-1/2 pint/A
Apply to field corn after emergence
but before corn is 36 inches tall or 15
days before tassel emergence,
whichever comes first.
Apply to sorghum between the 3-leaf
stage but prior to the preboot stage
(growth stage 4) or 15 inches in
height, whichever comes first
. Do not
apply in the boot stage . Use drop
nozzles if crop is taller than 8 inches.
All weeds controlled by BUCTRIL at
specified rates of application plus
improved control of pigweed
. For
Canada thistle burn down and field
bindweed suppression up to the mid-
bloom stage, use 1/4 - 1/2 pint/A of
Banvel® with BUCTRIL.
1 1/2 pints/A
+
1/8-1/2 pint/A
Apply to field corn between the 4-leaf
stage but before corn is 36 inches tall
or 15 days before tassel emergence,
whichever comes first.
Apply to sorghum between the 4-leaf
stage but prior to the preboot stage
(growth stage 4) or 15 inches in
height, whichever comes first . Do not
apply in the boot stage . Use drop
nozzles if crop is taller than 8 inches.
14
CORN (FIELD AND POP) AND SORGHUM (GRAIN AND FORAGE)
ADDITIONAL BUCTRIL TANK MIXTURE DIRECTIONS (continued)
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
atrazine
+
Banvel®1
1 pint/A
+
1/2-1 1/5 lb ai/A
+
1/8-1/4 pint/A
Apply to field corn after emergence
but before corn is 12 inches tall.
Apply to sorghum between the 3-leaf
stage but prior to the preboot stage
(growth stage 4) or 12 inches in
height, whichever comes first
. Use
drop nozzles if crop is taller than 8
inches.
All weeds controlled by BUCTRIL +
atrazine tank mixtures at specified
rates of application plus improved
control of pigweed
. For field bindweed
suppression, use 1/4 pint/A of
Banvel/Clarity with
BUCTRIL.
1 1/2 pints/A
+
1/2-1 1/5 lb ai/A
+
1/8-1/4 pint/A
Apply to field corn between the 4-leaf
stage and before corn is 12 inches
tall.
Apply to sorghum between the 4-leaf
stage but prior to the preboot stage
(growth stage 4) or 12 inches in
height, whichever comes first
. Do not
apply in the boot stage . Use drop
nozzles if crop is taller than 8 inches.
1Clarity® may be used at the same rates as Banvel ® in a tank mixture on corn. These mixtures must be applied before corn exceeds
8 inches in height. Do not use Clarity® in a tank mixture with BUCTRIL or BUCTRIL + atrazine on sorghum.
BUCTRIL
+
2,4-D
(such as WEEDONE®
and WEEDAR® brand
Herbicide)
1 pint/A
+
1/16-1/4 lb ai/A
Apply to field corn after emergence
but prior to tassel emergence . Use
drop nozzles if crop is taller than 8
inches.
Apply to sorghum between the 3-leaf
stage but prior to the preboot stage
(growth stage 4) or 15 inches in
height, whichever comes first
. Use
drop nozzles if crop is taller than 8
inches.
All weeds controlled by BUCTRIL at
specified rates plus improved pigweed
and kochia control. For Canada thistle
burn down and field bindweed
suppression up to the mid -bloom
stage, use 1/8 - 1/4 lb ai/A of 2,4-D
with BUCTRIL.
1 1/2 pints/A
+
1/16-1/4 lb ai/A
Apply to field corn between the 4-leaf
stage but prior to tassel emergence.
Use drop nozzles if crop is taller than
8 inches.
Apply to sorghum between the 4-leaf
stage but prior to the preboot stage
(growth stage 4) or 15 inches in
height, whichever comes first
. Use
drop nozzles if crop is taller than 8
inches.
15
CORN (FIELD AND POP) AND SORGHUM (GRAIN AND FORAGE)
ADDITIONAL BUCTRIL TANK MIXTURE DIRECTIONS (continued)
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
atrazine
+
2,4-D
(such as WEEDONE®
and WEEDAR® brand
Herbicide)
1 pint/A
+
1/2-1 1/5 lb ai/A
+
1/16 -1/4 lb ai/A
Apply to field corn after emergence
but before the corn is 12 inches tall.
Use drop nozzles if crop is taller than
8 inches.
Apply to sorghum between the 3-leaf
stage but prior to the preboot stage
(growth stage 4) or 12 inches in
height, whichever comes first
. Use
drop nozzles if crop is taller than 8
inches.
All weeds controlled by BUCTRIL +
atrazine tank mixtures at specified
rates of application plus improved
devils claw control. For Canada thistle
burn down and field bindweed
suppression, use 1/8 - 1/4 lb ai/A of 2,
4-D with BUCTRIL.
1 1/2 pints/A
+
1/2-1 1/5 lb ai/A
+
1/16-1/4 lb ai/A
Apply to field corn between the 4-leaf
stage but before the corn is 12 inches
tall. Use drop nozzl es if crop is taller
than 8 inches.
Apply to sorghum between the 4-leaf
stage but prior to the preboot stage
(growth stage 4) or 12 inches in
height, whichever comes first. Use
drop nozzles if crop is taller than 8
inches.
BUCTRIL
+
Accent®
+
Non-ionic surfactant
1 pint/A
+
2/3 oz/A
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn preemergence or
postemergence up to 36 inches tall.
Use drop nozzles when corn is
24 to 36 inches tall
. Do not apply this
tank mix to sorghum.
All broadleaf weeds controlled by
BUCTRIL
at 1 or 11/2 pints/A plus
grasses and broadleaves controlled
by Accent ®. For optimum weed
control, treat when broadleaves and
grasses are in the recommended
growth stage or size
. Follow the weed
size guideline on the BUCTRIL or
Accent® labels that are least
restrictive.
1 1/2 pint/A
+
2/3 oz/A
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn between the 4-leaf
stage up to 36 inches in height . Use
drop nozzles when corn is 24 to 36
inches tall . Do not apply this tankmix
to sorghum.
BUCTRIL
+
atrazine
+
Accent®
+
Non-ionic surfactant
1 pint/A
+
1/2 - 1 1/5 lb ai/A
+
2/3 oz/A
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn preemergence or
postemergence but before the corn is
12
inches tall. Do not apply this tank
mix to sorghum.
All broadleaf weeds controlled by
BUCTRIL + atrazine plus grasses and
broadleaves controlled by Accent ®.
For optimum weed control, treat when
broadleaves and grasses are in the
recommended growth stage or size.
Follow the weed size guideline on the
BUCTRIL
or Accent ® labels that are
least restrictive.
1 1/2 pint/A
+
1/2 - 1 1/5 lb ai/A
+
2/3 oz/A
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn between the 4-leaf
stage of crop growth but before the
corn is 12 inches tall
. Do not apply this
tank mix to sorghum.
16
CORN (FIELD AND POP) AND SORGHUM (GRAIN AND FORAGE)
ADDITIONAL BUCTRIL TANK MIXTURE DIRECTIONS (continued)
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Beacon ®
+
Non-ionic surfactant
1 pint/A
+
0.38-0.76 oz/A1
(1-2 packets/4 acres)
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn from 4 to 20 inches
in height. Do not apply this tank
mix to
sorghum.
All broadleaf weeds controlled by
BUCTRIL at 1 pint/A plus grasses
and broadleaves controlled by
Beacon®. For optimum weed control
treat when broadleaves and grasses
are in the recommended growth
stage or size
. Follow the weed size
guidelines on the BUCTRIL or
Beacon® labels that are least
restrictive.
BUCTRIL
+
Exceed ®
+
Non-ionic surfactant
3/4-1 pint/A
+
0.5 - 1.0 oz/A
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn from 4 to 48 inches
in height a
nd before tasseling,
whichever comes first. Do not apply
this tank mix to sorghum.
Addition of Exceed ® at 0.5 ounce/A
to BUCTRIL at 3/4- 1 pint/A will
control all weeds on the BUCTRIL
label at 1 pint/A plus improved
control of velvetleaf and pigweed
species.
Addition of Exceed ® at 1.0 ounce/A
to BUCTRIL at 3/4- 1 pint/A will
control all weeds on both the
BUCTRIL and Exceed ® labels.
Follow the weed size guidelines on
the BUCTRIL and Exceed ® labels
that are least restrictive.
BUCTRIL
+
Permit ®
+
Non-ionic surfactant
3/4-1 pint/A
+
1/3-2/3 oz/A
+
1 qt/100 gal of water
(0.25% v/v)
Apply to field corn from the 3-leaf
stage to layby
. Do not apply this tank
mix to sorghum.
Addition of Permit ® at 1/3 ounce/A to
BUCTRIL at 3/4- 1 pint/A will control
all weeds on the BUCTRIL label at 1
pint/A plus improved control of
velvetleaf and pigweed species.
Addition of Permit ® at 2/3 ounce/A to
BUCTRIL at 3/4- 1 pint/A will control
all weeds on both the BUCTRIL and
Permit ® labels. Follow the weed size
guidelines on the BUCTRIL and
Permit ® labels that are least
restrictive.
BUCTRIL
+
Stinger®
1 pint/A
+
1/3-2/3 pint/A
Apply to field corn after emergence up
to 24 inches in height . Do not apply
this tank mix to sorghum.
All weeds controlled by BUCTRIL at
specified rates of application plus
improved Canada thistle burn
down.
For optimum performance, apply to
Canada thistle at least 4 inches in
diameter or height but before bud
stage.
1 1/2 pints/A
+
1/3 - 2/3 pint/A
Apply to field corn from 4 leaf stage up
to 24 inches in height. Do not apply
this tank mix to sorghum.
BUCTRIL
+
Atrazine
+
Stinger®
1 pint/A
+
1/2-1 1/5 lb ai/A
+
1/3-2/3 pint/A
Apply to field corn after emergence
but before corn is 12 inches tall. Do
not apply this tank
mix to sorghum.
All weeds controlled by BUCTRIL +
atrazine tank mixtures at specified
rates of application plus improved
Canada thistle
burn down. For
optimum performance, apply to
Canada thistle at least 4 inches in
diameter or height but before bud
stage.
1 1/2 pints/A
+
1/2 - 1 1/5 lb ai/A
+
1/3 - 2/3 pint/A
Apply to field corn from 4 leaf stage
but
before corn is 12 inches tall . Do
not apply this tank mix to sorghum.
17
CORN (FIELD AND POP) AND SORGHUM (GRAIN AND FORAGE)
ADDITIONAL BUCTRIL TANK MIXTURE DIRECTIONS (continued)
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Pursuit®
+
Non-ionic surfactant
+
UAN Fertilizer solution
3/4-1 pint/A
+
4 oz/A
+
1 qt/100 gallons
+
1-2 quarts/A
Apply this tank mix only on field corn
hybrids possessing resistance to
Pursuit® herbicide. Contact your seed
supplier for further information. Apply
this tank mix to corn between the 3
leaf to 8 leaf stage of growth. Do not
use crop oil concentrates when
applying
BUCTRIL + Pursuit ® tank
mixtures.
This tank mix will control all broadleaf
weeds listed as controlled by
BUCTRIL at 1 pint/ A plus giant foxtail,
redroot pigweed, and other grass and
broadleaf weeds listed on the Pursuit ®
label.
BUCTRIL
+
Roundup®
Preemergence
1-1 1/2 pints/A
+
1/2-3 pints/A
Apply to corn or sorghum before
planting time up until just prior to crop
emergence.
All weeds controlled by BUCTRIL at
specified rates of application plus
control of certain grass and perennial
weeds. Refer to Roundup ® label for
rate to use depending on weeds
present at time of application.
RESTRICTIONS AND PRECAUTIONS: Corn (Field and Pop) and Sorghum (Grain and Forage), and Sudangrass
• BUCTRIL does not control grasses. Therefor e, it is recommended that a suitable grass control program be used to provide any
required grass control.
• Addition of a spray additive or mixture with liquid fertilizers may cause excessive crop leaf burn.
• Seed corn producers should consult the respective seed corn company regarding tolerance of certain seed production inbred line s
to BUCTRIL.
• Do not apply BUCTRIL to postemergence to se ed corn inbreds or popcorn prior to the 3 leaf stage of crop growth as excessive crop
leaf burn may occur.
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Do not cut crop for feed, fodder or graze within 45 days of application.
• Do not enter or allow worker entry into treated areas duri ng the restricted-entry interval (REI) of 2 days for corn.
• The total cumulative rate must not exceed 2 pints (0.5 pounds bromoxynil) per acre per season.
• Postemergence application prior to the 3 leaf growth stage of corn or sorghum may result in increased crop leaf burn.
• Tank mixtures with Accent ®/nonionic surfactant or Beacon®/nonionic surfactant may result in increased initial crop leaf burn. Use of
crop oil concentrate, nitrogen fertilizer solution or other adjuvants in BUCTRIL + Accent ® or BUCTRIL + Beacon® tank mixtures may
result in a further increase in crop leaf burn.
• Special care must be taken when using BUCTRIL and Banvel ®, Clarity®, or 2, 4-D tank mixtures to avoid off target drift to sensitive
crops.
• Tank mixtures with 2, 4-D, Banvel ®, or Clarity® can cause stalk brittleness to field corn. Tank mixtures with 2, 4-D and Banvel®, can
cause stalk brittleness to sorghum. Winds or cultivation may cause breakage while crop is brittle.
• Follow all restrictions and precautions on the label of all products used in tank mixture with BUCTRIL.
• Do not apply BUCTRIL at any rate to sorghum after the preboot stage of growth (growth stage 4) as severe crop injury; including
loss of crop yield may result.
• Do not apply the 2 pints/A rate of BUCTRIL to sorghum.
• Do not apply the BUCTRIL + Pursuit® tank mix except to field corn hybrids known to possess resistance to Pursuit®, or severe crop
injury may result.
18
WHEAT, BARLEY, OATS, RYE, AND TRITICALE
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL 1-2 pints/A Spring seeded wheat, barley, oats,
rye,
and triticale. Use in all states
except Idaho, Oregon, Washington,
Colorado, Wyoming, and Montana.
Apply from emergence up and prior to
the boot stage.
Apply 1 pint/A to MOST
SUSCEPTIBLE
and 1 1/2- 2 pints/A to
SUSCEPTIBLE weeds that do not
exceed the 4 leaf stage or 2 inches in
height, whichever comes first . If weed
forms rosette, apply before weeds
exceed 1 inch in diameter.
Use BUCTRIL at 1 1/2- 2 pints/A for
control of kochia that is 2 - 4 inches in
height and pigweed that does not
exceed the 4 leaf stage or 2 inches in
height, whichever comes first.
1 1/2-2 pints/A Fall seeded wheat, barley, oats, rye,
and triticale throughout the United
States
. Apply from emergence to the
boot stage.
Spring seeded wheat, barley, oats,
rye,
and triticale in Idaho, Oregon,
Washington, Colorado, Wyoming, and
Montana. Apply from emergence up
and prior to the boot stage.
Apply to MOST SUSCEPTIBLE
weeds (see WEED LIST) up to the 8
leaf stage or 4 inches in height,
whichever comes first . If weed forms
rosette apply before weeds exceed 2
inches in diameter. Apply to
SUSCEPTIBLE
broadleaf weeds up to
the 4 leaf stage, 2 inches in height or
1 inch in diameter, whichever comes
first.
Chemigation
2 pints/A only
Apply to wheat, barley, oats, rye, and
triticale from emergence to the boot
stage
. Apply through automated
sprinkler irrigation systems with a
mechanical transfer loading system
only
. See MIXING, LOADING AND
HANDLING INSTRUCTIONS section
for complete details.
Apply to MOST SUSCEPTIBLE
broadleaf weeds up to the 8 leaf stage
or 4 inches in height or 2 inches in
diameter, whichever comes first.
Apply to
SUSCEPTIBLE broadleaf
weeds up to the 4 leaf stage, 2 inches
in height or 1 inch in diameter,
whichever comes first
. Do not use
chemigation for control of weeds that
exceed 4 inches in height because
control may be u
nacceptable.
Small Grains
underseeded with Alfalfa
1-1 1/2 pints/A
Apply to wheat, barley, oats, rye or
triticale under seeded with alfalfa after
small grains emergence up to the boot
stage and when under seeded alfalfa
has a minimum of 4 trifoliate leaves.
Follow all precautions and restrictions
listed under the
wheat, barley, oats,
rye or triticale and seedling alfalfa
sections.
Apply 1 pint/A to MOST
SUSCEPTIBLE and 1 1/2 pints/A to
SUSCEPTIBLE broadleaf weeds that
do not exceed the 4 leaf stage, 2
inches in height or 1 inch in diameter,
whichever comes first.
19
SMALL GRAINS (WHEAT, BARLEY, OATS, RYE AND TRITICALE) (continued)
BUCTRIL TANK MIXTURE DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
2,4-D
(such as WEEDONE®
and WEEDAR® brand
Herbicide)
1-2 pints/A
+
1/4-1/2 lb ai/A
Apply to wheat, barley, oats, and rye
from the fully tillered but before
jointing stage.
This tank mix improves control of
mustards and pigweed . Apply to
weeds up to the 4 leaf stage, 2 inches
in height or 1 inch in diameter,
whichever comes first.
3/4-1 pint/A
+
1/4-1/2 lb ai/A
Apply to wheat and barley in
Minnesota, North and South Dakota
from the fully tillered but before
jointing stage.
This tank mix improves control of wild
buckwheat, redroot pigweed, and wild
mustard. Apply to weeds up to the 4
leaf stage, 2 inches in height or 1 inch
in diameter, whichever comes first.
BUCTRIL
+
MCPA
(such as RHONOX®or
RHOMENE®)
1-2 pints/A
+
1/4-1/2 lb ai/A
Apply to wheat, barley, oats, and rye
from the 4 leaf stage but before
jointing.
This tank mix improves control of
mustards, pigweed, and kochia. Apply
to weeds up to the 4 leaf stage, 2
inches in height or 1 inch in diameter,
whichever comes first.
BUCTRIL
+
Banvel®
1-1 1/2 pints/A
+
1/8-1/4 pint/A
Fall seeded wheat apply prior to the
jointing stage . Spring seeded wheat
apply up to the 5 leaf stage.
FOR USE ON WHEAT, BARLEY,
OATS, RYE AND TRITICALE.
This tank mix improves control of
broadleaves such as prostrate
knotweed. Apply to weeds up to the 4
leaf stage, 2 inches in height or 1 inch
in diameter, whichever comes first.
BUCTRIL
+
Glean®
+
Non-ionic surfactant
3/4-1 1/2 pints/A
+
1/6-1/3 oz/A
+
1 qt/100 gal of water
Apply to wheat and barley from the 2
leaf stage but before boot stage
. Refer
to Glean ® label for crop rotation and
other restrictions.
This tank mix improves control of
broadleaves such as henbit, tansy
mustard,
and pigweed. Apply to
weeds up to the 4 leaf stage, 4 inches
in height or 2 inches in diameter,
whichever comes first.
BUCTRIL
+
Ally®
+
Non-ionic surfactant
3/4-1 1/2 pints/A
+
1/10 oz/A
+
1 qt/100 gal of water
Apply to wheat and barley from the 2
leaf stage but before the boot stage.
Refer to Ally ® label for crop rotation
and other restrictions.
This tank mix improves control of
broadleaves such as tansy mustard
and pigweed
. Apply to weeds up to
the 4 leaf stage, 4 inches in height or
2 inches in diameter, whichever
comes first.
BUCTRIL
+
Finesse®
+
Non-ionic surfactant
3/4-1 1/2 pints/A
+
1/6-1/3 oz/A
+
1 qt/100 gal of water
Apply to wheat and barley from the 2
leaf stage but before the boot stage.
Refer to Finesse
® label for crop
rotation and other restrictions.
This tank mix improves control of
broadleaves such as tansy mustard,
henbit,
chickweed, and pigweed.
Apply to weeds up to the 4 leaf stage,
4 inches in height or 2 inches in
diameter, which
ever comes first.
BUCTRIL
+
Amber®
+
Non-ionic surfactant
3/4-1 1/2 pints/A
+
0.28-0.56 oz/A
+
0.25-0.5% v/v
Apply to wheat and barley after the 3
leaf stage but before the flagleaf is
visible. Refer to the Amber ® label for
crop rotation and other restrictions.
This tank mix improves control of
broadleaves such as tansy mustard,
henbit, and pigweed
. Apply to weeds
up to the 4 leaf stage, 4 inches in
height or 2 inches in diameter,
whichever comes first.
20
SMALL GRAINS (WHEAT, BARLEY, OATS, RYE, AND TRITICALE)
BUCTRIL TANK MIXTURE DIRECTIONS (continued)
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Express®
+
Non-ionic surfactant
1-1 1/2 pints/A
+
1/6-1/3 oz/A
+
1 qt/100 gal of water
Winter wheat. Apply after crop is in
the 2 leaf stage but before the flag leaf
is visible
. Refer to Express ® label for
crop rotation and other restrictions.
This tank mix improves control of
broadleaf weeds such as redroot
pigweed, tansy
mustard, and
suppression of Canada thistle . Apply
to annual weeds up to the 4 leaf
3/4- 1 1/2 pints/A
+
1/6-1/3 oz/A
+
1 qt/100 gal of water
Spring wheat and barley . Apply after
crop is in the 2 leaf stage but before
the flag leaf is visible
. Refer to
Express® label for crop rotation and
other restrictions.
stage, 4 inches tall or across,
whichever comes first, and to Canada
thistle 4 to 8 inches tall with 2 to 6
inches of n
ew growth.
BUCTRIL
+
Harmony® Extra
+
Non-ionic surfactant
3/4-1 1/2 pints/A
+
3/10-1/2 oz/A
+
1 qt/100 gal of water
Winter wheat . Apply after the 2 leaf
stage but before the 3rd node is
detectable. Refer to the Harmony ®
Extra label for crop rotation and other
restrictions.
Spring wheat and barley . Apply after
the 2 leaf stage but before the 1st
node is detectable
. Refer to the
Harmony® Extra label for crop rotation
and other restrictions.
This tank mix improves control of
broadleaf weeds such as henbit,
chickweed, and redroot pigweed.
Apply to weeds up to the 4 leaf stage,
4 inches in height or across,
whichever comes first.
BUCTRIL
+
Curtail® or Curtail® M4
1-1 1/2 pints/A
+
2 pints/A
Apply to wheat and barley after the
crop begins to tiller up to the 1st node
detectable.
This tank mix improves control of
kochia, wild buckwheat, and Canada
thistle. Apply to annual broadleaf
weeds up to the 8 leaf stage up to 4
inches in height or 2 inches in
diameter and Canada thistle in the
rosette to pre
-bud stage.
BUCTRIL
+
metribuzin
(Sencor® or Lexone®)
1-1 1/4 pints/A
+
1/8-1/4 lb ai/A
Winter wheat in Idaho, Montana,
Oregon, and Washington. Apply in
spring after growth has started and
secondary roots with a minimum of 3
to 4 tillers have been established but
before boot stage
. Avoid application
when crop has experienced winter kill,
frost damage,
disease, or drought.
This tank mix improves control of
broadleaves such as chickweed,
filaree, henbit, and dogfennel. Apply to
weeds that do not exceed 2 inches tall
or rosettes of 2 inches in diameter.
The higher use rates of both products
should be used only in emergency
weed situations and if some minor
crop injury is acceptable
. A
recognized authority should be
consulted concerning the use of this
mixture in your area.
BUCTRIL
+
diuron
1 pint/A
+
4/10 lb ai/A
Winter wheat and winter barley in
Idaho, Oregon, and Washington. Use
only in areas where annual rainfall
exceeds 16 inches . One fall
application after emergence but
before soil freezes or in spring as
soon as soil thaws.
This tank mix improves control of
broadleaves such as henbit and
gromwell
. Apply to weeds before they
are 2 inches tall or 2 inches in
diameter.
BUCTRIL
+
Tiller®
1 pint/A
+
1 pint/A
Spring wheat. Apply when crop begins
to tiller (3 4 leaf stage) up to the 6
leaf stage. Refer to the Tiller label for
complete use directions and
restrictions.
In addition to broadleaf weeds
controlled by BUCTRIL, this tank mix
will control green foxtail from the 2-
leaf to 2-tiller stage of growth.
21
SMALL GRAINS (WHEAT, BARLEY, OATS, RYE, AND TRITICALE)
BUCTRIL TANK MIXTURE DIRECTIONS (continued)
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Hoelon®
1-2 pints/A
+
2 2/3 pints/A
Spring Barley . After emergence but
before jointing . Avoid using this tank
mixture on barley exposed to cold
(lower than 40 degrees F) and/or
prolonged wet weather conditions as
crop injury may result.
This tank mix w ill provide wild oat,
green foxtail, and annual ryegrass
control in addition to broadleaves.
Apply to grasses 1 -3 leaf stage and
broadleaves no larger than 4 leaf
stage or rosettes of 1.5 inches in
diameter.
1-2 pints/A
+
2 2/3 3 1/3 pints/A
Winter wheat and spring wheat . After
emergence but before jointing.
BUCTRIL
+
Hoelon®
+
Crop Oil Concentrate
1-2 pints/A
+
2 2 2/3 pints/A
+
1-2 pints/A
Winter wheat and spring wheat . After
emergence but before jointing . Use a
minimum of 10 gallons of spray
volume per acre.
DO NOT USE ON BARLEY
BUCTRIL
+
Avenge®
1-2 pints/A
+
2 1/2-4 pints/A
Winter Wheat . Four leaf to tillering
stage. Refer to Avenge ® label for
varietal and other restrictions.
This tank mix will provide wild oat
control in addition to broadleaves.
Apply to wild oats in the 3 -5 leaf stage
and broadleaves that do not exceed
the 4 leaf stage or rosettes of 1.5
Spring Wheat . Five to 6 leaf stage.
Refer to Avenge® label for varietal and
other restrictions.
inches in diameter. Avenge use rates
per acre are 2.5 pints (1 -10 oats per
sq ft), 3 pints (11-25 oats per sq ft) or
4 pints (more than 25 oats per
Barley. Two to 7 leaf stage. sq ft).
RESTRICTIONS AND PRECAUTIONS: Wheat, Barley, Oats, Rye, and Triticale
• Do not graze treated fields within 45 days following treatment.
• Do not apply when crops are under moisture stress.
• Do not apply when crop canopy covers the weeds as poor weed control will result.
• Do not apply when under seeded alfalfa is under moisture, temper ature, insect, or disease stress or has been stressed by other
pesticide carryover or application.
• Do not add surfactant or crop oil when applying to under seeded alfalfa or increased injury will occur.
• Do not cut for feed or graze spring treated under seeded alfalfa within 30 days following treatment.
• Do not cut for feed or graze fall or winter treated under see ded alfalfa until spring, at least 60 days following treatment.
• Reduced weed control may occur when weeds are stressed from lack of moisture or cold temperatures.
• Refer to labels of products used in tank mi xture of additional restrictions and precautions.
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• The total cumulative rate must not exceed 2 pints/A (0.5 pounds bromoxynil) per year.
22
FORAGE, FIBER AND SPECIALTY CROPS
ALFALFA (SEEDLING)
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL 1-1 1/2 pints/A In the states of California,
Washington, Oregon, Idaho, Montana,
Wyoming, Colorado, Utah, Nevada,
Arizona, New Mexico, and the western
halves of North Dakota, South Dakota,
Nebraska and Kansas:
Apply in the fall or spring to seedling
alfalfa when the majority of the field
has a minimum of 2 trifoliates.
Unacceptable crop injury may occur to
alfalfa seedlings less than the 2
trifoliate stage
. BUCTRIL application
made when temperatures are
expected to exceed 80 oF at and 3
days following application can result in
unacceptable crop injury.
In the remaining states, apply in the
fall or spring to seedling alfalfa when
the majority of the field has a
minimum of 4 trifoliate leaves
. When
alfalfa stand is uneven and conditions
favor leaf burn , unacceptable crop
injury may occur to alfalfa in the 2
trifoliate or smaller stage of growth. If
you are unsure of growth stage
conditions, contact your local
extension service. BUCTRIL
applications made when temperatures
are expected to exceed 70
oF at and 3
days following application can result in
unacceptable crop injury.
Follow all other use directions listed
on the
BUCTRIL label.
Apply 1 pint/A to MOST
SUSCEPTIBLE broadleaf weeds and
1 1/2 pi nts/A to SUSCEPTIBLE
broadleaf weeds (See WEED LIST)
when weeds do not exceed 4 leaf
stage, 2 inches in height or 1 inch in
diameter, whichever comes first.
BUCTRIL
will not adequately control
over-wintered pennycress, henbit, and
mustards.
BUCTRIL Chemigation Only
2 pints/A
Apply to seedling alfalfa with a
minimum of 2 trifoliate leaves . Apply
through automated sprinkler irrigation
systems with a mechanical transfer
loading system only
. See MIXING
LOADING AND HANDLING
INSTRUCTIONS Section for complete
details. BUCTRIL applications made
when temperatures are expected to
exceed 85 oF at and 3 days following
application can result in unacceptable
crop injury.
Apply to MOST SUSCEPTIBLE
broadleaf weeds up to the 8 leaf
stage, 4 inches in height or 2 inches in
diameter, whichever comes first.
Apply to
SUSCEPTIBLE broadleaf
weeds up to the 4 leaf stage, 2 inches
in height or 1 inch in diameter,
whichever comes first.
23
Forage, Fiber and Specialty Crops (Alfalfa (Seedling)) (continued)
BUCTRIL TANK MIXTURE DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
BUTYRAC® 200
(2,4-DB)
1 pint/A
+
1 quart/A
Apply in the fall or spring to seedling
alfalfa when the majority of the field
has a minimum of 4 trifoliate leaves.
When alfalfa stand is uneven and
conditions favor leaf burn,
unacceptable crop injury may occur to
alfalfa in the 2 trifoliate or smaller
stage of growth
. If you are unsure of
growth stage conditions, contact your
local extension service . In the states
of California, Washington, Oregon,
Idaho, Montana, Wyoming, Colorado,
Utah, Nevada, Arizona, New Mexico,
and the western halves of North
Dakota, South Dakota, Nebraska and
Kansas,
BUCTRIL applications made
when temperatures are expected to
exceed 80 oF at and 3 days following
application can result in unacceptable
crop injury
. In the remaining states,
BUCTRIL application made when
temperatures are expected to exceed
70oF at and 3 days following
application can result in unacceptable
crop inju ry. Rainfall or overhead
irrigation within 7 -10 days following a
BUTYRAC® 200 application can
cause unacceptable crop injury.
This tank mix improves control of
pigweed species, kochia, and tansy
mustard
. Apply when weeds do not
exceed the 4 leaf stage, 2 inches in
height or 1 inch in diameter,
whichever comes first
. BUCTRIL +
BUTYRAC 200 tank mixtures will not
adequately control over
-wintered
pennycress, henbit, and mustards.
BUCTRIL
+
Pursuit®
+
Non-ionic surfactant
3/4-1 pint/A
+
3-6 oz/A
+
1 qt/100 gallons
In the states of California,
Washington, Oregon, Idaho, Montana,
Wyoming, Colorado, Utah, Nevada,
Arizona, New Mexico, and the western
halves of North Dakota, South Dakota,
Nebraska and Kansas:
Apply in the fall or spring to seedling
alfalfa when the majority of the field
has a minimum of 2 trifoliate leaves.
When alfalfa stand is uneven and
conditions favor leaf burn,
unacceptable crop injury may occur to
alfalfa treated prior to the 2nd trifoliate
stage of growth
. If you are unsure of
growth stage conditions, contact your
local extension service. BUCTRIL +
Pursuit
® applications made when
temperatures are expected to exceed
80oF at and 3 days following
application can result in unacceptable
crop injury.
This tank mix will control MOST
SUSCEPTIBLE broadleaf weeds (See
WEED LIST) when weeds do not
exceed the 4 leaf stage, 2 inches in
height or 1 inch in diameter,
whichever comes first; and other
grass and broadleaf weeds listed on
the Pursuit
® label. Weeds should be
1-3 inches tall for optimum control.
24
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Pursuit®
+
Non-ionic surfactant
1/2 - 3/4 pint/A
+
3-6 oz/A
+
1 qt/100 gallons
In all states except California,
Washington, Oregon, Idaho, Montana,
Wyoming, Colorado, Utah, Nevada,
Arizona, New Mexico, and the western
halves of North Dakota, South Dakota,
Nebraska and Kansas:
Apply in the fall or spring to seedling
alfalfa when the majority of the field
has a minimum of 2 trifoliate leaves.
When alfalfa stand is uneven and
conditions favor leaf burn,
unacceptable crop injury may occur to
alfalfa treated prior to the 2nd trifoliate
stage of growth
. If you are unsure of
growth stage conditions, contact your
local extension service. BUCTRIL +
Pursuit
® applications made when
temperatures are expected to exceed
70oF at and 3 days following
application can result in unacceptable
crop injury.
BUCTRIL at 1/2 pint/A tank mixed with
Pursuit® will control common
lambsquarters up to 2 inches in height
plus weeds listed on the Pursuit ®
label.
BUCTRIL at 3/4 pint/A + Pursuit ® will
control the MOST SUSCEPTIBLE
annual broadleaf weeds (
See Weed
List) when weeds do not exceed the 4
leaf stage, 2 inches in height or 1 inch
in diameter, whichever comes first
plus weeds listed on the Pursuit
®
label.
Applications should be made when
the majority of the weeds are 1-3
inches tall and when common
lambsquarters do not exceed 4 inches
in height
. For low g rowing weeds
(such as mustards), apply before the
rosette exceeds 3 inches in diameter.
Refer to the Pursuit
® label for a list of
susceptible weeds at each of the
specific rates.
RESTRICTIONS AND PRECAUTIONS: Alfalfa (Seedling)
• Crop leaf burn can occur following BUCTRIL application. Warm, humid conditions may enhance leaf burn. New crop growth will not
be affected. Alfalfa yield should not be reduced although total biomass tonnage may decrease compared to a weedy field due to
weed removal.
• Do not apply when alfalfa is under moisture, temperature, inse ct, or disease stress or has been stressed by other pesticide
carryover or application.
• If combined with herbicides requiring oil adjuvants or surfactants, increased alfalfa injury will occur.
• Do not cut for feed or graze spring treated alfalfa within 30 days following treatment.
• Do not cut for feed or graze fall or winter treated al falfa until spring, at least 60 days following treatment.
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 2 days for alfalfa.
• The total cumulative rate of BUCTRIL must not exceed 2 pints (0.5 pounds bromoxynil) per acre per season.
• The use of Eptam
® preemergence may enhance crop leaf burn from postemergence application of BUCTRIL and should be
considered prior to using BUCTRIL.
• Follow all restrictions and precautions on the tank mixt ure product label when a BUCTRIL tank mixture is used.
• Tank mixture with 2, 4-DB may result in unacceptable cr op leaf burn especially under warm, humid weather conditions.
• BUCTRIL alone can be applied to seedling alfalfa that has been underseeded into small grains that include wheat, barley, oats, rye,
and triticale. See application restrictions under the SMALL GRAINS SECTION.
• Rainfall or overhead irrigation within 7 10 days following BUTYRAC® 200 application can cause unacceptable crop injury.
25
FLAX (Linum usitatissimum only)
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL 1 pint/A Apply to flax that is 2 to 8 inches in
height
. Do not apply BUCTRIL to flax
during or after the bud stage.
Apply to MOST SUSCEPTIBLE
weeds that do not exceed the 4 leaf
stage, 2 inches in height or 1 inch in
diameter, whichever comes first.
BUCTRIL TANK MIXTURE RECOMMENDATIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Poast®
+
Crop oil Concentrate
or
Dash®
1 pint/A
+
1-1 1/2 pints/A
+
2 Pints/A
or
2 pints/A
Apply to flax that is 2 to 8 inches in
height. Do not apply this tankmix to
flax during or after the bud stage, or
within 75 days of flax harvest.
This tankmix will control broadleaf
weeds plus grassy weeds listed on the
Poast label. Apply to MOST
SUSCEPTI
BLE broadleaf weeds (see
list on the BUCTRIL label) that do not
exceed the 4 leaf stage, 2 inches in
height or 1 inch in diameter,
whichever comes first.
RESTRICTIONS AND PRECAUTIONS: Flax (Linum usitatissium only)
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Do not apply if temperatures are expected to exceed 85° F at or 3 days following application or crop injury may occur.
• Unacceptable crop injury may occur following BUCTRIL application to flax grown on high organic, peat type soils.
• Application under high humidity conditions can injure flax.
• Unless otherwise instructed, do not apply BUCTRIL to flax wi th crop oil concentrate, surfactants, or nitrogen solutions.
• Do not use on ornamental flax.
• Follow all precautions, directions, and restrictions on the Poast ® label when using this tank mixture with BUCTRIL.
• Do not apply more than 1 pint (0.25 pounds bromoxyn il) of BUCTRIL per acre in a single growing season.
GARLIC
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL 1 1/2 - 2 pints/A Apply to garlic after emergence but
before 12 inches in height.
Apply to MOST SUSCEPTIBLE and
SUSCEPTIBLE broadleaf weeds up to
the 4 leaf stage, 2 inches in height or
1 inch in diameter, whichever comes
first.
BUCTRIL
(Only for garlic grown in
muck soils in
Northeastern United
States)*
1 1/2 - 2 pints/A Apply to garlic after emergence but
before 12 inches in height.
*May be harvested 60 days after
treatment.
PRECAUTIONS AND RESTRICTIONS: Garlic
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Use a minimum of 20 gallons per acre for ground application.
• BUCTRIL can be applied through automated sprinkler irrigation application.
• Do not harvest within 112 days following treatment (except ga rlic grown in muck soils in Northeastern United States).
• Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 2 days for garlic.
• Do not apply more than 2 pints (0.5 pounds bromoxynil) of BUCTRIL per acre in a single growing season.
26
MINT
(ESTABLISHED PEPPERMINT AND SPEARMINT ONLY)
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL 1-1 1/2 pints/A Apply to dormant or actively growing
established peppermint or spearmint
crops that exhibit good vigor.
Apply to MOST SUSCEPTIBLE and
SUSCEPTIBLE weeds that do not
exceed the 4 leaf stage, 2 inches in
height or 1 inch in diameter,
whichever comes first.
Chemigation
2 pints/A only
Apply to dormant or actively growing
established peppermint or spearmint
crops that exhibit good vigor.
Apply through automated sprinkler
irrigation systems with a mechanical
transfer loading system only
. See
MIXING, LOADING AND HANDLING
INSTRUCTIONS section for complete
details.
RESTRICTIONS AND PRECAUTIONS: Mint
• Application made to mint when temperatures are expected to exceed 70 oF at or 5 days following application may result in
unacceptable crop injury. This injury is more likely to occur following BUCTRIL application in the spring.
• Do not apply to mint growing under adverse conditions includi ng diseases, insects, nematodes, high salt content soil, drought,
excessive moisture, winter damage, or other environmental stress.
• Application of BUCTRIL to mint should not be made within two weeks of a Sinbar ® application or unacceptable crop injury may
result.
• Do not use in spring on newly established mint. Fall applications to spring planted mint should be acceptable if the crop is well
established.
• BUCTRIL can cause temporary stunting and discoloration of the mi nt particularly from the spring application. However, the injury
symptoms are only temporary and have not caused yield reduction.
• Use of BUCTRIL in combination with other products may increase temporary stunting and discoloration.
• Do not harvest within 70 days following treatment.
• Do not apply more than 6 pints (1.5 pounds bromoxynil) of BUCTRIL per acre to mint in a single growing season.
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Do not enter or allow worker entry into treated areas duri ng the restricted-entry interval (REI) of 2 days for mint.
27
ONIONS
(DRY BULB)
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
Preemergence
1-1 1/2 pints/A
Preemergence use is restricted to
onions grown east of the Mississippi
River only on muck soils containing
greater than 10% organic matter.
Apply at least 3 to 4 days prior to
emergence. Rainfall or irrigation within
2 days following preemergence
applications or 3 days prior to crop
emergence may result in
unacceptable crop injury.
Preemergence applications can be
applied using either ground or aerial
equipment.
Apply BUCTRIL at 1 pint/A to control
MOST SUSCEPTIBLE weeds and
1 1/2 pints/A for SUSCEPTIBLE
weeds. Weeds should not exceed the
4 leaf stage, 2 inches in height or 1
inch in diameter, whichever comes
first
.
Postemergence
1-1 1/2 pints/A
Apply only to onions, which have 2 to
5 true leaves.
Use at least 50 -70 gallons of water
per acre and apply by ground
equipment or chemigation only .
Water volume is important -
CONCENTRATED SPRAYS KILL
ONIONS
. Thorough and uniform
coverage is necessary for good weed
control.
In onion -producing areas, certain
environmental conditions reduce
development of waxy coating on the
onion leaves, thus increasing the
possibility of injury
. Dry s oil, dry onion
foliage, high light intensity, low
humidity, and high temperatures tend
to increase the waxy coating on onion
leaves and thus reducing chances for
injury
. It is essential that the soil and
onion foliage be dry at the time of
application. Hum idity should be low
and dew should be off the plants.
RESTRICTIONS AND PRECAUTIONS: Onions (dry bulb)
• The sensitivity of onions to BUCTRIL varies with the variety and environmental conditions. Therefore, even if all the label directions
are followed, BUCTRIL application still may cause injury to onions under certain circumstances.
• Do not irrigate onions that have received a preemergence applic ation of BUCTRIL for 2 days following application or within 3 days of
crop emergence.
• Do not apply BUCTRIL preemergence to onio ns grown West of the Mississippi River.
• Do not use BUCTRIL on onions grown under low light intensit y, in areas such as Oregon, west of the Cascades.
• Do not treat onions damaged by sand, insects, or diseases.
• Do not apply postemergence applications of BUCTRIL to onions with aerial equipment.
• Do not add surfactant.
• Do not apply more than 1 ½ pints (0.375 pounds bromoxynil) of BUCTRIL per acre per year.
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 2 days for onion.
28
GRASS CROPS
CONSERVATION RESERVE PROGRAM (CRP) AREAS
BUCTRIL DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL 1- 2 pints/A Apply to grasses after emergence. If
alfalfa is
planted, apply after the 4
trifoliate leaf stage.
Apply to MOST SUSCEPTIBLE and
SUSCEPTIBLE broadleaf weeds up to
the 4 leaf stage, 2 inches in height or
1 inch in diameter, whichever comes
first.
Chemigation
2 pints/A only
Apply to grasses after emergence. If
alfalfa is planted, apply after the 4
trifoliate leaf stage.
Apply through automated sprinkler
irrigation systems with a mechanical
transfer loading system only
. See
MIXING, LOADING AND HANDLING
INSTRUCTIONS section for complete
details.
BUCTRIL TANK MIXTURE DIRECTIONS
APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT RATE CROP WEEDS
BUCTRIL
+
Rhomene®
or Rhonox® (MCPA)
1 - 2 pints/A
+
1/4 - 1/2 pint/A
Apply to CRP areas after grasses
have reached the 3 leaf stage . Do not
use this tank mixture in areas where
alfalfa or other legumes have been
planted.
This tank mix improves control of
mustards, pigweed, and kochia . Apply
up to the 4 leaf stage, 2 inches in
height or 1 inch in diameter,
whichever comes first.
RESTRICTIONS AND PRECAUTIONS: CRP AREAS
• Do not allow livestock to graze in treated areas or feed treate d grasses, forage, hay, straw, silage, or seed to livestock.
• Do not add spray adjuvants or fluid fertilizers when applying BUCTRIL to CRP areas planted with alfalfa or other legumes.
• Do not apply BUCTRIL to CRP areas planted with al falfa if temperatures are expected to exceed 80
oF or severe crop injury may
occur. If legumes other than alfalfa have been planted, severe crop injury may occur at any application temperature.
• Do not apply more than 1 1/2 pints/A (0.375 pounds bromoxynil) per year of BUCTRIL to CRP areas that are under seeded with
alfalfa.
29
GRASSES GROWN FOR SEED OR SOD PRODUCTION
BUCTRIL DIRECTIONS
Seedling and Established Grasses
RATE RATE APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT Per ACRE Per 1000 SQ FT CROP WEEDS
BUCTRIL 1 to 2
Pints
0.375 to 0.75
Fl. Oz.
Apply to established and newly
seeded grasses grown for seed or sod
production before the boot stage.
Established grasses tolerant to
BUCTRIL
include bentgrasses,
Kentucky Bluegrass, Fescues,
Ryegrass, Bermudagrass, St.
Augustinegrass and Zoyiagrass.
BUCTRIL
may also be used on
seedling grasses such as Merion,
Park, Delta, or common Kentucky
Bluegrasses, Pennlawn, Chewings,
Illahee or Alta Fescues, Orchard
grass, Highland, Seaside or Astoria
Bentgrasses, perennial Ryegrasses,
Bahiagrass and Zoysiagrass.
Refer to the WEED LIST for a listing
of susceptible broadleaf weeds.
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
BUCTRIL Chemigation
2 pints only
0.75 Fl. Oz. Apply to established and newly
seeded grasses grown for seed or sod
production before the boot stage.
Apply through automated sprinkler
irrigation systems with mechanical
transfer loading system only
. See
MIXING LOADING AND HANDLING
INSTRUCTIONS section for complete
details
. Refer to the list of established
grasses that are tolerant to BUCTRIL.
RESTRICTIONS AND PRECAUTIONS: Grasses grown for seed or sod production
• Do not allow livestock to graze in treated areas or feed treated grasses, forage, hay, straw, silage, or seed to livestock.
• Do not apply BUCTRIL to grasses grown for seed or sod pr oduction with backpack or hand-held application equipment.
• Do not apply more than 2 pints (0.5 pounds bromoxynil) of BUCTRIL per acre per year.
• Do not plant rotational crops within 30 days following BUCTRIL Herbicide application.
• Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 24 hours for sod.
30
NON-RESIDENTIAL TURFGRASS
BUCTRIL DIRECTIONS
Seedling and Established Non-Residential Turfgrass
RATE RATE APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT Per ACRE Per 1000 SQ FT CROP WEEDS
BUCTRIL 1 to 2
Pints
0.375 to 0.75
Fl. Oz.
Apply to established and newly
seeded non-residential turfgrass when
weeds are small and actively growing.
Established turfgrasses that are
tolerant to BUCTRIL include
bentgrasses, Kentucky Bluegrass,
Fescues, Ryegrass, Bermudagrass,
St.
Augustinegrass, and Zoyiagrass.
BUCTRIL may also be used on
seedling grasses such as Merion,
Park, Delta, or common Kentucky
Bluegrasses, Pennlawn, Chewings,
Illahee or Alta Fescues, Orchard
grass, Highland, Seaside or Astoria
Bentgrasses, perennial Ryegrasses,
Bahiagrass and Zoysiagrass.
Refer to the WEED LIST for a listing
of susceptible broadleaf weeds.
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
RESTRICTIONS AND PRECAUTIONS: Non-residential turfgrasses
• Do not allow livestock to graze in treated areas or feed treate d grasses, forage, hay, straw, silage, or seed to livestock.
• Do not apply BUCTRIL to non-residential turf wit h backpack or hand-held application equipment.
• Do not apply more than 2 pints (0.5 pounds bromoxynil) of BUCTRIL per acre per year.
31
BUCTRIL TANKMIXTURE RECOMMENDATIONS
Established Non-Residential Turfgrass
RATE RATE APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT Per ACRE Per 1000 SQ FT CROP WEEDS
BUCTRIL
+
WEEDONE®
DPC Ester
2 Pints
+
3 to 4
Pints
0.75 Fl. Oz.
+
1.125 to 1.5
Fl. Oz.
Apply to established non -residential
turfgrass only . This treatment may
cause injury to bentgrasses, St.
Augustinegrass, centipedegrass, and
carpetgrass
.
All weed species previously listed in
the WEED LIST for BUCTRIL plus the
following species:
Dandelion (Taraxacum officinale)
Plantains (Plantago spp.)
Ground Ivy (Glechoma hederacea)
Red Clover (Trifolium pratense)
White Clover (Trifolium repens)
Hop Clover (Trifolium agrarium)
Common Chickweed (Stellaria media)
Prostrate Spurge (Euphorbia supina)
Oxalis (Oxalis europaea)
Knotweed (Polygonum aviculare)
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
BUCTRIL
+
MCPP
2 Pints
+
1.0 lb ai
0.75 Fl. Oz.
+
0.025 lb ai
Apply to established non-residential
turfgrass only . This treatment is not
recommended for use on St.
Augustinegrass or centipedegrass.
All weed species previously listed in
the WEED LIST for BUCTRIL plus the
following species:
Red Clover (Trifolium pratense)
White Clover (Trifolium repens)
Common Chickweed (Stellaria media)
Mouseear Chickweed
(Cerastium vulgatum)
Ground Ivy (Glechoma hederacea)
Stitchwort (Stellaria gramminea)
Knotweed (Polygonum aviculare)
Prostrate Spurge (Euphorbia supina)
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
BUCTRIL
+
dicamba
2 Pints
+
0.125 to
0.25
lb ai
0.75 Fl. Oz.
+
0.006 to 0.012
lb ai
Apply to established non-residential
turfgrass only . This treatment may
cause injury to bentgrasses, St.
Augustinegrass, centipedegrass, and
carpetgrass
.
All weed species previously listed in
the WEED LIST for BUCTRIL plus the
following species:
Red Clover (Trifolium pratense)
White Clover (Trifolium repens)
Common Chickweed (Stellaria media)
Mouseear Chickweed
(Cerastium vulgatum)
Pepperweed (Lepidium spp.)
Knotweed (Polygonum aviculare)
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
32
Established Non-Residential Turfgrass (CONT.)
RATE RATE APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT Per ACRE Per 1000 SQ FT CROP WEEDS
BUCTRIL
+
MCPP
+
dicamba
2
Pints
+
0.5 to 1.0
lb ai
+
0.125 to
0.25
lb ai
0.75 Fl. Oz.
+
0.0125 to 0.025
lb ai
+
0.003 to 0.006
lb ai
Apply to established non -residential
turfgrass only . This treatment is not
recommended for use on St.
Augustinegrass or centipedegrass.
All weed species previously listed in
the WEED LIST for BUCTRIL and
BUCTRIL/Dicamba tank mixtures plus
the following species:
Dandelion (Taraxacum officinale)
Plantains (Plantago spp.)
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
BUCTRIL
+
MCPP
+
2.4-D
2 Pints
+
0.5 to 1.0
lb ai
+
0.5 to 1.0
lb ai
0.75 Fl. Oz.
+
0.0125 to 0.025
lb ai
+
0.0125 to 0.025
lb ai
Apply to established non -residential
turfgrass only . This treatment is not
recommended for use on St.
Augustinegrass or centipedegrass.
All weed species previously listed in
the WEED LIST for BUCTRIL and
BUCTRIL/2,4-D tank mixtures plus the
following species:
Dandelion (Taraxacum officinale)
Plantains (Plantago spp.)
Red Sorrell (Rumex acetosella)
Knotweed (Polygonum aviculare)
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter)
.
Optimal control of red sorrell will
require the high use rate of 2 , 4-D or
MCPP.
RESTRICTIONS AND PRECAUTIONS: Non-residential turfgrasses
• BUCTRIL /WEEDONE ® DPC tank mixes are not allowed in California.
• Do not allow livestock to graze in treated areas or feed treated grasses, forage, hay, straw, silage, or seed to livestock.
• Do not apply BUCTRIL to non-residential turf with backpack or hand-held application equipment.
• Do not apply more than 2 pints (0.5 pounds bromoxynil) of BUCTRIL per acre per year.
33
NON-CROPLAND
NON-CROPLAND AND INDUSTRIAL SITES
BUCTRIL DIRECTIONS
RATE RATE APPLICATION TIMING AND SPECIFIC COMMENTS
PRODUCT Per ACRE Per 1000 SQ FT CROP WEEDS
BUCTRIL 1 to 2
Pints
0.375 to 0.75
Fl. Oz.
Apply to non -cropland and industrial
sites when weeds have emerged and
are actively growing.
Refer to the WEED LIST for a listing
of susceptible broadleaf weeds
. Use
adequate spray volumes to ensure
thorough coverage.
Optimal control will be attained when
weeds are treated in the seedling
stage (less than 4 leaf stage, 2 inches
in height, or 1 inch in diameter).
RESTRICTIONS AND PRECAUTIONS: Non-Cropland and Industrial Sites
• Do not allow livestock to graze in treated areas or feed treated plant material to livestock.
• Addition of surfactant or crop oil concentrate may improve burn down of broadleaf weeds under cool, dry conditions.
• Do not apply BUCTRIL to non-cropland and industrial sites with backpack or hand-held application equipment.
• Do not apply more than 2 pints (0.5 pounds bromoxynil) of BUCTRIL per acre per year.
34
STORAGE AND DISPOSAL
Proper pesticide storage and disposal are essential to protect against exposure to people and the environment due to
leaks and spills, excess product or waste, and vandalism. Do not allow this product to contaminate water, foodstuffs, feed
or seed by storage or disposal.
PESTICIDE STORAGE: Store pesticides away from food, pet food, feed, seed, fertilizers, and veterinary supplies. Keep
container closed to prevent spills and contamination.
PESTICIDE DISPOSAL: To avoid wastes, use all material in this container, including rinsate, by application according to
label directions. If wastes cannot be avoided, offer remaining product to a waste disposal facility or pesticide disposal
program. Such programs are often run by state or local governments or by industry. All disposal must be in accordance
with applicable federal, state and local regulations and procedures
CONTAINER HANDLING AND DISPOSAL:
[Container Handling and Disposal for Nonrefillable Containers]
Nonrefillable container.
For nonrefillable containers of 5-gallon capacity or less
Do not reuse the container to hold materials other than pesticides or dilute pesticides (rinsate). After emptying and
cleaning, it may be allowable to temporarily hold rinsate or other pesticide-related materials in the container. Contact your
state regulatory agency to determine allowable practices in your state.
Triple rinse or pressure rinse (or equivalent) the container promptly after emptying.
Triple rinse as follows: Empty the remaining contents into application equipment or a mix tank and drain for 10 seconds
after the flow begins to drip. Fill the container ¼ full with water and recap. Shake for 10 seconds. Pour rinsate into
application equipment or a mix-tank or store rinsate for later use or disposal. Drain for 10 seconds after the flow begins to
drip. Repeat this procedure two more times.
Pressure rinse as follows: Empty the remaining contents into application equipment or a mix tank and continue to drain for
10 seconds after the flow begins to drip. Hold container upside down over application equipment or mix-tank while rinsing,
or collect rinsate for later use or disposal. Insert pressure rinsing nozzle in the side of the container and rinse at about 40
PSI for at least 30 seconds. Drain for 10 seconds after the flow begins to drip.
For nonrefillable containers of greater than 5-gallon capacity
Do not reuse or refill this container.
Triple rinse or pressure rinse (or equivalent) the container promptly after emptying.
Triple rinse large nonrefillable containers NOT equipped with pumping systems as follows: Empty the remaining contents
into application equipment or mix-tank. Fill the container ¼ full with water. Replace and tighten closures. Tip the container
on its side and roll it back and forth for 30 seconds, ensuring at least one complete revolution. Stand the container on its
end and tip it back and forth several times. Turn the container over onto its other end and tip it back and forth several
times. Empty the rinsate into application equipment or mix-tank, or store rinsate for later use or disposal. Repeat this
procedure two more times.
Triple rinse large nonrefillable containers equipped with pumping systems as follows: Empty the remaining contents into
application equipment or mix-tank. Fill the container about 10 percent full with water. Agitate vigorously or recirculate
water with the pump for 2 minutes. Pour or pump rinsate into application equipment or rinsate collection system. Repeat
this rinsing procedure two more times.
Pressure rinse large containers as follows: Empty the remaining contents into application equipment or mix-tank. Place
container so that it can drain directly into application equipment or mix-tank while rinsing, or collect rinsate for later use or
disposal. Insert pressure rinsing nozzle through the opening of the container or directly into the side of the container and
rinse at about 40 PSI for at least 30 seconds or until rinsate runs clear. Continue to drain for 10 seconds after the flow
begins to drip.
Once the nonrefillable container is properly rinsed, offer for recycling, if available. Some container manufacturers offer
container recycling. See additional information regarding manufacturer recycling programs attached to the container, if
available. If no recycling information is available on the container, contact your chemical dealer or Bayer CropScience at
1-866-99BAYER (1-866-992-2937), or contact the Ag Container Recycling council (ACRC) at 1-877-952-2272 or at
www.acrecycle.org, to find the nearest recycling location. If recycling is not available, dispose of in accordance with
federal, state and local regulations and procedures, which may include puncturing the properly rinsed container and
disposing in a sanitary landfill.
35
[Container Handling and Disposal for Refillable Containers]
Refillable container. Refill the container with pesticide only. Do not reuse the container for any other purpose.
Cleaning the container before refilling is the responsibility of the refiller. Cleaning the container before final disposal is the
responsibility of the person disposing of the container. Triple rinse or pressure rinse (or equivalent) the container promptly
after emptying and before final disposal.
To triple rinse the refillable container before final disposal, empty the remaining contents from the container into
application equipment or mix-tank. Fill the container at least 10 percent full with water. Agitate vigorously or recirculate
water with the pump for 2 minutes. Pour or pump rinsate into application equipment or rinsate collection system. Repeat
this procedure two more times.
To pressure rinse the refillable container before final disposal, empty the remaining contents from the container into
application equipment or mix-tank. Position the container so that it can drain directly into application equipment or mix-
tank while rinsing, or collect rinsate for later use or disposal. Insert pressure rinsing nozzle through the opening of the
container or directly into the side of the container and rinse all interior area at about 40 PSI for at least 30 seconds or until
rinsate drains clear.
Once the refillable container is properly rinsed, offer for recycling, if available. Some container manufacturers offer
container recycling. See additional information regarding manufacturer recycling programs attached to the container, if
available. If no recycling information is available on the container, contact your chemical dealer or Bayer CropScience at
1-866-99BAYER (1-866-992-2937), or contact the Ag Container Recycling council (ACRC) at 1-877-952-2272 or at
www.acrecycle.org, to find the nearest recycling location. If recycling is not available, dispose of in accordance with
federal, state and local regulations and procedures, which may include puncturing the properly rinsed container and
disposing in a sanitary landfill.
[Optional additional container disposal statement: IBC EMPTY? FREE CALL 1-888-SCHUETZ (1- 888-724-8389)
www.schuetz.net/ticket; Schuetz ticket service]
[Optional additional container disposal statement: FREE IBC PICKUP] [For continental USA and Canada only.]
[Optional additional container disposal statement: RETURNnet SYSTEM To return empty IBCs Email or Call
www.returnnetsystem.com 1-888-758-SHIP United States and Canada (1-888-758-7447 IBCNA Clarkston,
Michigan USA]
[Optional additional container label statements for the CUBE refillable packaging system only:
CUBE Bayer CropScience Refillable Delivery System
FEATURES INCLUDE:
• Automatic Venting
• Heavy duty one-way 2-inch camloc ball valve with protective shield door
• Complete coated steel protective enclosure
• Durable 4-way plastic pallet
Lift door to access one-way valve]
[For Transport Vehicle labels only, as defined at 40 CFR § 156.3]
FOR BULK PESTICIDE TRANSPORT ONLY.
STORAGE AND DISPOSAL
Proper pesticide storage and disposal are essential to protect against exposure to people and the environment due to
leaks and spills, excess product or waste, and vandalism. Do not allow this product to contaminate water, foodstuffs, feed
or seed by storage or disposal.
PESTICIDE STORAGE: Store pesticides away from food, pet food, feed, seed, fertilizers, and veterinary supplies. Keep
container closed to prevent spills and contamination.
PESTICIDE DISPOSAL: To avoid waste, empty as much product from this transport vehicle as possible for repackaging
or use in accordance with label directions. If wastes cannot be avoided, offer remaining product or rinsate to a waste
disposal facility or pesticide disposal program. All disposal must be in accordance with applicable federal, state and local
regulations and procedures.
CONTAINER HANDLING AND DISPOSAL: Emptied transport vehicle container retains vapor and product residue.
Observe all precautions stated on this label until the container is cleaned, reconditioned or destroyed. Prior to refilling,
36
inspect carefully for damage such as cracks, punctures, abrasions, and worn-out threads and closures. Clean thoroughly
before reuse for transportation of a material of different composition or before retiring this transport vehicle container from
service.
THIS LABEL FOR USE WITH TRANSPORT VEHICLES ONLY
37
IMPORTANT: READ BEFORE USE
Read the entire Directions for Use, Conditions, Disclaimer of Warranties and Limitations of Liability before using this product . If terms
are not acceptable, return the unopened product container at once.
By using this product, user or buyer accepts the following Conditions, Disclaimer of Warranties and Limitations of Liability.
CONDITIONS: The directions for use of this product are believed to be adequate and must be followed carefully. However, it is
impossible to eliminate all risks associated with the use of th is product. Crop injury, ineffectiveness or other unintended con sequences
may result because of such factors as weather conditions, presence of other materials, or the manner of use or application, all of which
are beyond the control of Bayer CropScience. All such risks shall be assumed by the user or buyer.
DISCLAIMER OF WARRANTIES: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BAYER CROPSCIENCE LP MAKES
NO OTHER WARRANTIES, EXPRESS OR IMPLIED, OF MERCHA NTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE
OR OTHERWISE, THAT EXTEND BEYOND THE STATEMENTS MADE ON THIS LABEL. No agent of Bayer CropScience LP is
authorized to make any warranties beyond those contained herein or to modify the warranties contained herein. TO THE EXTENT
CONSISTENT WITH APPLICABLE LAW, BAYER CROPSCIENCE LP DISCLAIMS ANY LIABILITY WHATSOEVER FOR SPECIAL,
INCIDENTAL OR CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT.
LIMITATIONS OF LIABILITY: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE
USER OR BUYER FOR ANY AND ALL LOSSES, INJURIES OR DAMAGES RESULTING FROM THE USE OR HANDLING OF THIS
PRODUCT, WHETHER IN CONTRACT, WARRANTY, TORT, NEGLIGENCE, STRICT LIABILITY OR OTHERWISE, SHALL NOT
EXCEED THE PURCHASE PRICE PAID, OR AT BAYER CROPSCIENCE LPS ELECTION, THE REPLACEMENT OF PRODUCT.
Warning: This product contains a chemical known to the State of California to cause developmental harm.
NET CONTENTS: 2.5 GALLONS
BUCTRIL, BUTYRAC, SEVIN, WEEDAR, and WEEDONE are registered trademarks of Bayer Group.
Avenge and Pursuit are registered trademarks of BASF Corporation
Dylox, Metasystox, Sencor, and Systox are registered trademarks of Bayer CropScience
Raindrop is a registered trademark of Delavan Corporation
Curtail, Lorsban, and Stinger are registered trademarks of DowElanco Chemical Company
Accent,Ally, Express, Finesse, Glean, Harmony, Lexone, and Pydrin are registered trademarks of E.I. DuPont
DeNemours and Co.
Furadan and Pounce are registered trademarks of FMC Corporation
Dash, Hoelon, and Tiller are registered trademarks of Bayer CropScience
Roundup and Permit are registered trademarks of Monsanto Company
Banvel and Clarity are registered trademarks of Sandoz Crop Protection Corporation
Eptam is a registered trademark of ICI Americas Inc.
Aatrex, Amber, Beacon and Exceed are registered trademarks of SYNGENTA CROP PROTECTION, LLC.
Poast is a registered trademark of BASF Corporation.
Rhomene and Rhonox are registered trademarks of NuFarm.
Produced for
Bayer CropScience LP
800 N. Lindbergh Blvd.
St. Louis, MO 63167
1-866-99BAYER (1-866-992-2937)
BUCTRIL Herbicide (PENDING) 08/23/2021, 1/14/2022, 05/11/2022, 05/19/2022