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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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# DUPONT D1691 HERBICIDE
- EPA Reg No: **352-914**
- Registrant: CORTEVA AGRISCIENCE, LLC
- Signal word: Caution
- Active ingredients: Dicamba, diglycolamine salt (58.1%)
- Label accepted: 2015-07-23
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000352-00914-20150723.pdf
---
Registration Notice Unconditional v.20150320
U.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Pesticide Programs
Registration Division (7505P)
1200 Pennsylvania Ave., N.W.
Washington, D.C. 20460
EPA Reg. Number:
352-914
Date of Issuance:
7/23/15
NOTICE OF PESTICIDE:
X Registration
Reregistration
Term of Issuance:
Unconditional
(under FIFRA, as amended)
Name of Pesticide Product:
DuPont ™ D1691 Herbicide
Name and Address of Registrant (include ZIP Code):
E.I. du Pont de Nemours and Company
1007 Market Street
Wilmington, DE 19898
Note: Changes in labeling differing in substance from that accepted in connection with this registration must be submitted to and accepted by the
Registration Division prior to use of the label in commerce. In any correspondence on this product always refer to the above EPA registration number.
On the basis of information furnished by the registrant, the above named pesticide is hereby registered
under the Federal Insecticide, Fungicide and Rodenticide Act.
Registration is in no way to be construed as an endorsement or recommendation of this product by the
Agency. In order to protect health and the environment, the Administrator, on his motion, may at any
time suspend or cancel the registration of a pesticide in accordance with the Act. The acceptance of any
name in connection with the registration of a product under this Act is not to be construed as giving the
registrant a right to exclusive use of the name or to its use if it has been covered by others.
This product is unconditionally registered in accordance with FIFRA section 3(c)(5)(a) provided that
you:
1. Submit and/or cite all data required for registration/reregistration/registration review of your
product when the Agency requires all registrants of similar products to submit such data.
Signature of Approving Official:
Kathryn Montague Product Manager 23
Herbicide Branch,
Registration Division (7505P)
Date:
7/23/15
EPA Form 8570-6
Page 2 of 2
EPA Reg. No. 352-914
Decision No. 501381
2. Make the following label changes before you release the product for shipment:
x Revise the EPA Registration Number to read, “EPA Reg. No. 352-914.”
3. Submit one copy of the revised final printed label for the record before you release the product
for shipment.
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.
If these conditions are not complied with, the registration will be subject to cancellation in accordance
with FIFRA section 6. Your release for shipment of the product constitutes acceptance of these
conditions. A stamped copy of the label is enclosed for your records. Please also note that the record for
this product currently contains the following CSFs:
x Basic CSF dated 02/25/2015
If you have any questions, please contact Grant Rowland by phone at 703-347-0254, or via email at
rowland.grant@epa.gov
Enclosure
Sincerely,
Kathryn V. Montague, Product Manager 23
Herbicide Branch
Registration Division (7505P)
Office of Pesticide Programs
For weed control in asparagus, conservation reserve programs, corn, cotton, fallow croplands, general
farmstead (noncropland), sorghum, grass grown for seed, hay, proso millet, pasture, rangeland, small
grains, sod farms and farmstead turf, soybean, and sugarcane.
Active Ingredient By Weight
Diglycolamine salt of dicamba
(3,6-dichloro-o-anisic acid)* 58.1%
Other Ingredients 41.9%
TOTAL 100.0%
* contains 39.4%, 3,6-dichlro-o-anisic acid (4 pounds acid equivalent per U.S. gallon or 480 grams per liter).
EPA Reg. No. 352-XXX EPA Est. No. ___________
Nonrefillable Container
Net: ______________
OR
Refillable Container
Net: ______________
1
KEEP OUT OF REACH OF CHILDREN
CAUTION
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle. (If you do not understand this
label, find someone to explain it to you in detail.)
FIRST AID
IF SWALLOWED: Call a poison control center or doctor immediately for treatment advice. Have person sip a glass of water if
able to swallow. Do not induce vomiting unless told to do so by a poison control center or doctor. Do not give anything to an
unconscious person.
IF IN EYES: Hold eye open and rinse slowly and gently with water for 15-20 minutes. Remove contact lenses, if present, after
the first 5 minutes, then continue rinsing eye. Call a poison control center or doctor for treatment advice.
IF ON SKIN OR CLOTHING: Take off contaminated clothing. Rinse skin immediately with plenty of water for 15 to 20
minutes.
Have the product container or label with you when calling a poison control center or doctor, or going for treatment. You may also
contact 1-800-441-3637 for emergency medical treatment information.
PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
Causes moderate eye irritation. Harmful if swallowed or absorbed through skin. Avoid contact with skin, eyes or clothing.
USER SAFETY RECOMMENDATIONS
Users should: Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. Remove clothing/PPE
immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. Remove PPE immediately after
handling this product. Wash the outside of gloves before removing. As soon as possible, wash thoroughly and change into
clean clothing.
DuPont™ D1691
herbicide
HERBICIDE4GROUP
07/23/2015
352-914
DIRECTIONS FOR USE
It is a violation of Federal law to use this product in any manner inconsistent with its labeling. This product can only be used in
accordance with the Directions for Use on this label or in separately published DuPont supplemental labeling. Supplemental
labeling can be obtained from your Authorized DuPont Retailer or DuPont Company Representative. This labeling must be in the
users possession during application.
Do not apply this product in a way that will contact workers or other persons, either directly 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 pesticide regulations.
2
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Some materials that are chemical-resistant to this product are nitrile rubber and butyl rubber.
All mixers, loaders, applicators and other handlers must wear:
• Long-sleeved shirt and long pants
• Chemical-resistant gloves
• Shoes plus socks.
See “Engineering Controls Statement” for additional requirements.
Follow the manufacturers instructions for cleaning and maintaining PPE. If no such instructions for washables exist, use
detergent and hot water. Keep and wash PPE separately from other laundry.
Engineering Control Statement: When handlers use closed systems, or enclosed cabs in a manner that meets the
requirements listed in the Worker Protection 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.
IMPORTANT: When reduced PPE is worn because a closed system is being used, handlers must be provided all PPE
specified above for “all mixers, loaders, applicators and other handlers” and have such PPE immediately available for use in an
emergency, such as a spill or equipment breakdown.
ENVIRONMENTAL HAZARDS
Keep out of lakes, streams or ponds. Do not apply directly to water, or to areas where surface water is present or to
intertidal areas below the mean high water mark. Do not contaminate water when disposing of equipment washwaters or
rinsate. Apply this product only as directed on the label.
This chemical is known to leach through soil into ground water under certain conditions as a result of agricultural use. Use
of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in ground
water contamination.
GROUND AND SURFACE WATER PROTECTION
Point source contamination - To prevent point source contamination, do not mix or load this pesticide product within 50
feet of wells (including abandoned wells and drainage wells), sink holes, perennial or intermittent streams and rivers, and
natural or impounded lakes and reservoirs. Do not apply pesticide product within 50 feet of wells. This setback does not
apply to properly capped or plugged abandoned wells and does not apply to impervious pad or properly diked
mixing/loading areas as described below.
Mixing, loading, rinsing, or washing operations performed within 50 feet of a well are allowed only when conducted on an
impervious pad constructed to withstand the weight of the heaviest load that may be on or move across the pad. The pad
must be self-contained to prevent surface water flow over or from the pad. The pad capacity must be maintained at 110%
that of the largest pesticide container or application equipment used on the pad and have sufficient capacity to contain all
product spills, equipment or container leaks, equipment wash waters, and rainwater that may fall on the pad. The
containment capacity does not apply to vehicles delivering pesticide shipments to the mixing/loading site. States may have
in effect additional requirements regarding wellhead setbacks and operational containment.
Care must be taken when using this product to prevent: a) back siphoning into wells, b) spills or c) improper disposal of
excess pesticide, spray mixtures or rinsates. Check valves or anti-siphoning devices must be used on all mixing equipment.
Movement by surface runoff or through soil - Do not apply under conditions which favor runoff. Do not apply to
impervious substrates such as paved or highly compacted surfaces in areas with high potential for ground water
contamination. Ground water contamination may occur in areas where soils are permeable or coarse and ground water is
near the surface. Do not apply to soils classified as sand with less than 3% organic matter and where ground water depth is
shallow. To minimize the possibility of ground water contamination, carefully follow application rate specifications as
affected by soil type in the Crop Specific Information section of this label.
Movement by water erosion of treated soil - Do not apply or incorporate this product through any type of irrigation
equipment nor by flood or furrow irrigation. Ensure treated areas have received at least one-half inch rainfall (or irrigation)
before using tailwater for subsequent irrigation of other fields.
ENDANGERED SPECIES CONCERNS
The use of any pesticide in a manner that may kill or otherwise harm an endangered species or adversely modify their
habitat is a violation of federal law.
PRODUCT INFORMATION
This product is a water-soluble formulation intended for control and suppression of many annual, biennials, and perennial broadleaf
weeds, as well as woody brush and vines listed in the WEEDS CONTROLLED section of this label. This product may be used for
control of these weeds in asparagus, corn, cotton, conservation reserve programs, fallow cropland, grass grown for seed, hay, proso
millet, pasture, rangeland, general farmstead (noncropland), small grains, sod farms and farmstead turf, sorghum, soybean, and
sugarcane.
DuPont™ D1691 is a postemergence, systemic herbicide which can have moderate residual control on small seeded broadleaf
weeds, including waterhemp, lambsquarters and Palmer pigweed, depending on rainfall and soil type.
Refer to the CROP-SPECIFIC INFORMATION section for application timing and other crop-specific details.
D1691 is readily absorbed by plants through shoot and root uptake, translocates throughout the plants system, and accumulates in
areas of active growth. D1691 interferes with the plants growth hormones (auxins) resulting in death of many broadleaf weeds.
[Optional label text: Do not add [Optional label text: surfactants, additives containing surfactants,] buffering agents or pH adjusting
agents to the spray solution when D1691 is the only pesticide being applied unless otherwise directed. See the MIXING section of
this label for instructions regarding other additives.]
RESTRICTIONS
Maximum Application Rates: The maximum application or use rates stated throughout this label are given in units of
volume (fluid ounces or quarts) of this product per acre. However, the maximum allowed application rates apply to this
product combined with the use of any and all other herbicides containing the active ingredients dicamba, whether applied
separately or as a tank mixture, on a basis of total pounds of dicamba (acid equivalents) per acre. If more than one dicamba-
containing product is applied to the same site within the same year, you must ensure that the total use of dicamba (pounds
acid equivalents) does not exceed the maximum allowed. See the INGREDIENTS section of this label for necessary
product information.
Maximum annual application: Do not exceed 64 fluid ounces of D1691 herbicide (2 pounds acid equivalent) per acre.
Refer to Table 2. Crop-Specific Restrictions for crop-specific maximum annual use rates.
Preharvest Interval (PHI): Refer to the CROP-SPECIFIC INFORMATION section for preharvest intervals.
Restricted Entry Interval (REI): 24 hours
Rainfast period: Rainfall or irrigation occurring within 4 hours after postemergence applications may reduce the
effectiveness of this 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
contains requirements for the protection of agricultural workers on farms, forests, nurseries, and greenhouses, and handlers of
agricultural pesticides. It contains requirements for training, decontamination, notification, and emergency assistance. It also
contains specific instructions and exceptions pertaining to the statements on this 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
WPS.
Do not enter or allow worker entry into treated areas during the restricted-entry interval (REI) of 24 hours.
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves contact
with anything that has been treated, such as, plants, soil, or water is:
• Coveralls worn over short-sleeved shirt and short pants
• Chemical-resistant footwear plus socks
• Chemical-resistant gloves made of any waterproof material
• Chemical-resistant headgear for overhead exposure
• Protective eyewear
NON-AGRICULTURAL USE REQUIREMENTS
The requirements in this box apply to uses of this product that are NOT within the scope of the Worker Protection Standard 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 people (or pets) to enter the treated area until sprays have dried. Do not apply this product in a way that
will contact workers or other persons, either directly or through drift. Do not enter or allow other people or pets to enter until
sprays have dried.
3
Stress: Do not apply to crops under stress due to lack of moisture, hail damage, flooding, herbicide injury, mechanical
injury, insects, or widely fluctuating temperatures as injury may result.
Do not apply through any type of irrigation equipment. Do not treat irrigation ditches or water used for crop irrigation or
domestic purposes.
WEED RESISTANCE MANAGEMENT
Dicamba mimics auxin (a plant hormone) resulting in a hormone imbalance in susceptible plants that interferes with normal
cell division, cell enlargement, and protein synthesis. Dicamba active ingredient is a Group 4 herbicide based on the mode
of action classification system of the Weed Science Society of America. Any weed population can contain plants naturally
resistant to Group 4 herbicides. Weed species resistant to Group 4 herbicides can be effectively managed utilizing another
herbicide from a different Group, or by using other cultural or mechanical practices..
Weed Management Practices
To minimize the occurrence of dicamba-resistant biotypes, observe the following weed management practices:
• Scout your fields before and after herbicide application.
• Start with a clean field, using either a burndown herbicide application or tillage.
• Control weeds early when they are relatively small (less than 4 inches).
• Incorporate other herbicides (e.g., a selective and/or a residual herbicide) and cultural practices (e.g., tillage or crop
rotation) as part of your weed control system, where appropriate.
• Use the full specified herbicide rate and proper application timing for the hardest to control weed species present in the
field. Avoid tank mixtures with other herbicides that reduce the efficacy of this product (through antagonism), or with
ones that encourage application rates of this product below those specified on this label.
• Control weed escapes before they reproduce by seed or proliferate vegetatively.
• Clean equipment before moving from field to field to minimize the spread of weed seed or plant parts.
• Use new commercial seed that is as free of weed seed as possible.
• Use good agronomic principles that enhance crop development and crop competitiveness.
• Report any incidence of repeated non-performance of this product on a particular weed to your DuPont representative,
local retailer, or county extension agent.
Management of Dicamba-Resistant Biotypes
Appropriate testing is critical in order to determine if a weed is resistant to dicamba. Contact your DuPont representative to
determine if resistance in any particular weed biotype has been confirmed in your area, or visit on the Internet
www.weedscience.org.
Since the occurrence of new dicamba-resistant weeds cannot be determined until after product use and scientific
confirmation, DuPont is not responsible for any losses that result from the failure of this product to control dicamba-
resistant weed biotypes.
The following good agronomic practices can reduce the spread of confirmed dicamba-resistant biotypes:
• If a naturally occurring resistant biotype is present in your field, this product may be tank-mixed or applied sequentially
with an appropriately labeled herbicide with a different mode of action to achieve control.
• Cultural and mechanical control practices (e.g., crop rotation or tillage) can also be used as appropriate.
• Scout treated fields after herbicide application and control weed escapes, including resistant biotypes, before they set
seed.
• Thoroughly clean equipment before leaving fields known to contain resistant biotypes.
INTEGRATED PEST MANAGEMENT
This product may be used as part of an Integrated Pest Management (IPM) program that can include biological, cultural,
and genetic practices aimed at preventing economic pest damage. IPM principles and practices include field scouting or
other detection methods, correct target pest identification, population monitoring, and treating when target pest populations
reach locally determined action thresholds. Consult your state cooperative extension service, professional consultants or
other qualified authorities to determine appropriate action treatment threshold levels for treating specific pest/crop systems
in your area
4
APPLICATION INFORMATION
Table 1. DuPont™ D1691 Application Rates for Control or Suppression by Weed Type and Growth Stage
Use rate limitations are given in the RESTRICTIONS AND CROP SPECIFIC INFORMATION sections.
1 Rates below 8 fluid ounces per acre may provide control or suppression but should typically be applied with other herbicides that are
effective on the same species and biotype.
2 Weed types noted in Table 1 will require tank mixes for adequate control.
3 Do not broadcast apply more than 32 fluid ounces per acre in any single application. A sequential application of up to 32 fluid ounces
may be required for adequate control. Use the higher level listed rate ranges when treating dense vegetative growth or perennial weeds
with well established root growth.
MIXING
Compatibility Test for Mix Components
Before mixing components, always perform a compatibility jar test.
• For 20 gallons per acre spray volume, use 3.3 cups (800 mL) of water. For other spray volumes, adjust rates accordingly.
Only use water from the intended source at the source temperature.
• Add components in the sequence indicated in the Mixing Order section below using 2 teaspoons for each pound or 1
teaspoon for each pint of labeled use rate per acre.
• Cap the jar and invert 10 cycles between component additions.
• When the components have all been added to the jar, let the solution stand for 15 minutes.
• Evaluate the solution for uniformity and stability. The spray solution should not have free oil on the surface; fine
particles that precipitate to the bottom; or thick (clabbered) texture. If the spray solution is not compatible, repeat the
compatibility test with the addition of a suitable compatibility agent. If the solution is then compatible, use the
compatibility agent as directed on its label. If the solution is still incompatible, then do not mix the ingredients in the
same tank.
Mixing Order
1. Water - Begin by agitating a thoroughly clean sprayer tank three-quarters full of clean water.
2. Agitation - Maintain constant agitation throughout mixing and application.
3. Inductor - If an inductor is used, rinse it thoroughly after each component has been added.
4. Products in PVA bags - Place any product contained in water-soluble PVA bags into the mixing tank. Wait until all
water-soluble PVA bags have fully dissolved and the product is evenly mixed in the spray tank before continuing.
5. Water-dispersible products (dry flowables, wettable powders, suspension concentrates, or suspo-emulsions)
6. Water-soluble products (such as
DuPont™ D1691)
7. Emulsifiable concentrates (such as oil concentrate when applicable)
8. Water-soluble additives (when applicable)
9. Remaining quantity of water.
Maintain constant agitation during application
Tank Mixtures
This product may be tank-mixed with other registered herbicides to provide longer residual weed control, a broader weed
control spectrum or an alternate mode of action. Always read and follow label directions for all products in the tank
mixture.
Weed Type and Stage
Annual1
Small, actively growing
Established weed growth
Biennial
Rosette diameter 1 3”
Rosette diameter 3” or more
Bolting
Rate Per Acre
8 - 16 fluid ounces
16 - 24 fluid ounces
8 - 16 fluid ounces
16 - 32 fluid ounces
32 fluid ounces
Weed Type and Stage
Perennial
Top growth suppression
Top growth control and root
suppression
Noted perennials (footnote 1 in
Crop-specific information).
Other perennials3
Woody Brush & Vines
Top growth suppression
Top growth control2,3
Stems and stem suppression3
Rate Per Acre
8 - 16 fluid ounces
16 - 32 fluid ounces
32 fluid ounces
32 fluid ounces
16 - 32 fluid ounces
32 fluid ounces
32 fluid ounces
5
Some tank-mix products have the potential to cause crop injury under certain conditions, at certain growth stages and/or
under other circumstances. Read the label for all products to be used in the tank mixture prior to use to determine the
potential for crop injury.
Tank mixtures with other herbicides, insecticides, fungicides, miticides, additives, micronutrients or foliar fertilizers could
result in reduced weed control, physical incompatibility or crop injury. DuPont has not tested all tank-mix product
formulations for compatibility, antagonism or reduction in product performance. Unless prohibited by law, buyer and all
users are solely responsible for any and all loss or damage in connection with the use or handling of mixtures of this
product with herbicides or other materials that are not expressly specified on this label or in separate supplemental labeling
or Fact Sheets published for this product.
Refer to the tank mix product labels to confirm that the respective tank mix products are registered for the specific crop use.
Refer to all individual product labels, supplemental labeling and Fact Sheets for all products in the tank mixture, and
observe all precautions and limitations on the label, including application timing restrictions, soil restrictions, minimum re-
cropping intervals and rotational guidelines. Use according to the most restrictive precautionary statements for each product
in the tank mixture. See the CROP-SPECIFIC INFORMATION section for more details.
Always predetermine the compatibility of all tank-mix products together in the carrier by mixing small proportional
quantities in advance.
Apply this product or tank mixtures with this product at a minimum spray volume rate of 10 GPA.
Do not apply in tank mixtures with “Lorsban” insecticide.
Table 2. Crop-Specific Restrictions
1
1 Refer to CROP-SPECIFIC INFORMATION for more details.
2 Once the crop reaches the ensilage (milk) stage or later in maturity
CROP-SPECIFIC INFORMATION
ASPARAGUS
Apply DuPont™ D1691 to emerged and actively growing weeds in 40 - 60 gallons of diluted spray per treated acre
immediately after cutting the field, but at least 24 hours before the next cutting. Multiple applications may be made per
growing season (not to exceed the maximum yearly application rate).
If spray contacts emerged spears, crooking (twisting) of some spears may result. If such crooking occurs, discard affected
spears.
Rates: Apply 8-16 fluid ounces of D1691 to control annual sowthistle, black mustard, Canada and Russian thistle, and
redroot pigweed (carelessweed).
Apply 16 fluid ounces of D1691 to control common chickweed, field bindweed, nettleleaf goosefoot, and wild radish. Up
to 2 applications may be made per growing season. Do not exceed a total of 16 fluid ounces of D1691 per treated acre, per
crop year.
Crop
Asparagus
Barley; Fall
Barley; Spring
Conservation Reserve Program
(CRP)
Corn
Cotton
Fallow Ground
Grass grown for seed
Oats
Pastureland
Proso Millet
Small grains grown for grass,
forage, fodder, hay and/or
pasture
Sorghum
Soybean
Sugarcane
Triticale
Sod farms and farmstead turf
Wheat
Maximum Rate Per Acre Per
Application (fl oz)
16
8
8
16
16
8
32
32
64
32
4
16
8
32
32
4
32
8
Maximum In-Crop Rate Pre
Acre Per Season (fl oz)
16
12
11
64
24
8
64
64
6
32
4
16
16
32
64
4
32
16
Livestock Grazing or Feeding
Yes
Yes
Yes
Yes2
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
6
Do not harvest prior to 24 hours after treatment.
Do not use in the Coachella Valley of California.
Asparagus Tank Mixes
Apply 8-16 fluid ounces of D1691 with glyphosate or 2,4-D to improve control of Canada thistle and field bindweed.
BETWEEN CROP APPLICATIONS
Preplant Directions (Postharvest, Fallow, Crop Stubble, Set-Aside) for Broadleaf Weed Control:
D1691 can be applied either postharvest in the fall, spring, or summer during the fallow period or to crop stubble/set-aside
acres. Apply D1691 as a broadcast or spot treatment to emerged and actively growing weeds after crop harvest
(postharvest) and before a killing frost or in the fallow cropland or crop stubble the following spring or summer.
See the RESTRICTIONS section for the specific interval between application and planting to prevent crop injury.
Rates and Timings:
Apply 4-32 fluid ounces of D1691 per acre. Refer to Table 1 to determine use rates for specific targeted weed types. For
best performance, apply D1691 when annual weeds are less than 4” tall, when biennial weeds are in the rosette stage and to
perennial weed regrowth in late summer or fall following a mowing or tillage treatment. The most effective control of
upright perennial broadleaf weeds listed on this label such as Canada thistle and Jerusalem artichoke occurs if D1691 is
applied when the majority of weeds have at least 4 - 6" of regrowth or for weeds listed on this label such as field bindweed
and hedge bindweed that are in or beyond the full bloom stage.
Avoid disturbing treated areas following application. Treatments may not kill weeds that develop from seed or underground
plant parts such as rhizomes or bulblets, after the effective period for
DuPont™ D1691. For seedling control, a follow-up
program or other cultural practices could be instituted. For small grain in-crop uses of D1691, refer to the small grain
section for details.
Between Crop Tank Mixes
In tank mixes with one or more of the following herbicides, apply 4-16 fluid ounces of D1691 per acre for control of annual
weeds, or 16-32 fluid ounces of D1691 per acre for control of biennial and perennial weeds:
CORN (FIELD, POP, SEED, AND SILAGE)
D1691 is not registered for use on sweet corn.
Direct contact of D1691 with corn seed must be avoided. If corn seeds are less than 1.5” inches below the surface, delay
application until corn has emerged.
Applications of D1691 to corn during periods of rapid growth may result in temporary leaning. Corn will usually become
erect within 3 to 7 days. Cultivation should be delayed until after corn is growing normally to avoid breakage.
Corn may be harvested or grazed for feed once the crop has reached the ensilage (milk) stage or later in maturity.
Up to 2 applications of D1691 may be made during a growing season not to exceed 24 fluid ounces per acre per season.
Sequential applications must be separated by 2 weeks or more.
Do not apply D1691 to seed corn or popcorn without first verifying with your local seed corn company (supplier) the
selectivity of D1691 on your inbred line or variety of popcorn. This precaution will help avoid potential injury of sensitive
varieties.
Avoid using crop oil concentrates after crop emergence as crop injury may result. Use crop oil concentrates only in dry
conditions when corn is less than 5” tall and when applying D1691 alone or tank mixed with atrazine.
Use of sprayable fluid fertilizer as the carrier is not recommended for applications of D1691 made after corn emergence.
Preplant and Preemergence Application in No-Tillage Corn:
Rates: Apply 16 fluid ounces of D1691 per acre on medium- or fine-textured soils containing 2.5% or greater organic
matter. Use 8 fluid ounces per acre on coarse soils (sand, loamy sand, and sandy loam) or medium- and fine-textured soils
with less than 2.5% organic matter.
Timing: D1691 can be applied to emerging weeds before, during, or after planting a corn crop. When planting into a
legume sod (e.g., alfalfa or clover), apply D1691 after 4 - 6” of regrowth has occurred.
DuPont™ ALLY® XP
“Amber”
Atrazine
“Curtail”
“Cyclone”
“Fallow Master”
DuPont™ FINESSE®
glyphosate
“Gramoxone”
“Kerb”
“Landmaster” BW
“Paramount”
“Sencor”
“Tordon” 22K
“Touchdown”
2,4-D
7
Preemergence Application in Conventional or Reduced Tillage Corn:
Rates: Apply 16 fluid ounces of D1691 per treated acre on medium- or fine-textured soils containing 2.5% organic matter
or more. Do not apply to coarse textured soils (sand, loamy sand, or sandy loam) of any soil with less than 2.5% organic
matter until after corn emergence (See Early Postemergence uses below).
Timing: D1691 may be applied after planting and prior to corn emergence. Pre-emergence application of D1691 does not
require mechanical incorporation to become active. A shallow mechanical incorporation is recommended if application is
not followed by adequate rainfall or sprinkler irrigation. Avoid tillage equipment (e.g., drags, harrows) which concentrates
treated soil over seed furrow as seed damage could result.
Preemergence control of cocklebur, jimsonweed, and velvetleaf may be reduced if conditions such as low temperature or
lack of soil moisture cause delayed or deep germination of weeds.
Early Postemergence Application in All Tillage Systems:
Rates: Apply 16 fluid ounces of D1691 per treated acre. Reduce the rate to 8 fluid ounces per treated acre if corn is
growing on coarse textured soils (sand, loamy sand, and sandy loam).
Timing: Apply between corn emergence and the 5-leaf stage or 8” tall, whichever occurs first. Refer to Late
Postemergence Applications if the sixth true leaf is emerging from whorl or corn is greater than 8” tall.
Late Postemergence Application:
Rate:Apply  fluid ounces of DuPont™ D1691 per treated acre.
Timing: Apply D1691 from 8 - 36” tall corn or 15 days before tassel emergence, whichever comes first. For best
performance, apply when weeds are less than 3” tall.
Apply directed spray when corn leaves prevent proper spray coverage, sensitive crops are growing nearby, or tank mixing
with 2,4-D. Do not apply D1691 when soybeans are growing nearby if any of these conditions exist:
• corn is more than 24” tall
• soybeans are more than 10” tall
• soybeans have begun to bloom
Corn Tank Mixes Or Sequential Uses
When using tank mix or sequential applications with D1691, always follow the companion product label to determine
specific use rates by soil types, weed species, and weed or crop growth stage. In addition, follow precautions and
restrictions including state and local use restrictions that may apply to specific products.
Apply D1691 prior to, in tank mix with, or after one or more of the following herbicide brands:
4
1 See Table 3. Specific Guidelines for Tank Mixes or Sequential Use Programs for additional limitations or restrictions that apply for
tank mix or sequential use programs with these products.
2 Use only on “Liberty Link” (glufosinate tolerant) corn hybrids.
3 Includes postemergence use on “Roundup Ready”·(glyphosate tolerant) corn hybrids.
4 Use only “Clearfield” (imidazolinone tolerant) corn hybrids.
DuPont™ ACCENT®
Atrazine
“Axiom”
“Banvel”
1
DuPont™ BASIS® Blend
“Beacon”
1
“Bicep”
DuPont™ BREAKFREE® NXT
“Bullet”
DuPont™ CINCH®
“Degree”
“Degree Xtra”
“Dual”
“Exceed”
1
“FulTime”
glyphosate
3
“Gramoxone” Inteon
“Guardsman”
“Harness”
“Hornet”
1
“Laddok”
“Lasso”
DuPont™ LEADOFF®
“Liberty”
2,
“Lightning”4
“Outlook”
“Permit”
“Princep”
“Prowl”
“Python”
DuPont™ RESOLVE®
“Spirit”
“Stinger”
1
“Surpass”
“TopNotch”
“Touchdown”
2,4-D
1
8
Table 3. Specific Guidelines for Tank Mixes or Sequential Use Programs
COTTON
Preplant Application:
Apply up to 8 fluid ounces of D1691 per acre to control emerged broadleaf weeds prior to planting cotton in conventional
or conservation tillage systems.
For best performance, apply D1691 when weeds are in the 2 - 4 leaf stage and rosettes are less than 2” across.
Following application of D1691 and a minimum accumulation of 1” of rainfall or overhead irrigation, a waiting interval of
21 days is required per 8 fluid ounces per acre or less. These intervals must be observed prior to planting cotton.
Do not apply preplant to cotton west of the Rockies.
Do not make
DuPont™ D1691 preplant applications to cotton in geographic areas with average annual rainfall less than
25”.
If applying a spring preplant treatment following application of a fall preplant (postharvest) treatment, then the combination
of both treatments may not exceed 2 pounds acid equivalent per acre.
Cotton Tank Mixes
For control of grasses or additional broadleaf weeds, D1691 may be tank mixed with “Caparol”, “Gramoxone” Inteon and
glyphosate.
GRASS GROWN FOR SEED
Apply 8-16 fluid ounces of D1691 per treated acre on seedling grass after the crop reaches the 3 - 5 leaf stage. Apply up to
32 fluid ounces of D1691 on well-established perennial grass. For best performance, apply D1691 when weeds are in the
2 - 4 leaf stage and rosettes are less than 2" across. Use the higher level of listed rate ranges when treating more mature
weeds or dense vegetative growth.
To suppress annual grasses such as brome (downy and ripgut), rattail fescue, and windgrass, apply up to 32 fluid ounces of
D1691 per treated acre in the fall or late summer after harvest and burning of established grass seed crops. Applications
should be made immediately following the first irrigation when the soil is moist and before weeds have more than 2 leaves.
Do not apply D1691 after the grass seed crop begins to joint.
Refer to the Pasture, Hay, Rangeland, and General Farmstead section for grazing and feeding restrictions.
Grass Seed Tank Mixes
D1691 may be applied in tank mixes with one or more of the following herbicide brands:
PROSO MILLET
For use only within Colorado, Nebraska, North Dakota, South Dakota, and Wyoming.
D1691 combined with 2,4-D will provide control or suppression of the annual broadleaf weeds listed in WEEDS
CONTROLLED section.
Apply 4 fluid ounces of D1691 with 0.375 pounds a.i. of 2,4-D. Apply the tank mix of D1691 + 2,4-D as a broadcast or
spot treatment to emerged and actively growing weeds and when proso millet is in the 2 - 5 leaf stage. Use directions for
2,4-D products vary with manufacturers. Refer to a 2,4-D product with labeling consistent with the crop stage timing for
D1691. Some types of proso millet may be affected adversely by a tank mix of D1691 + 2,4-D.
Do not apply unless possible proso millet crop injury will be acceptable.
Tank Mix Partner
ACCENT® or “Beacon”
2,4-D
“Exceed”,
“Spirit”,
“Stinger”,
“Homet”, or
“Permit”
Rate Per Acre
When tank mixing, applications immediately following extreme day or night temperature
fluctuations or applications when daytime temperatures do not exceed 50° F may result in
decreased weed control or crop injury. Delay application until the temperatures warm and both
weeds and crop resume normal growth.
To provide maximum crop safety after corn emergence, use this tank mix only after corn is
greater than 8” tall and when application can be made with drop pipes that direct spray beneath
corn leaves and away from the whorl of the corn. The maximum rate of 2,4-D in
this tank mix is 0.25 pints per acre (0.125 pounds of acid equivalent per acre).
For improved control of velvetleaf, tank mix 0.25-0.5 ounce of “Exceed”, 0.5 ounce of “Spirit”,
or 0.17-0.33 ounce “Permit” per acre with D1691. For improved control of Canada
thistle, “Stinger” at 1.5-3 fluid ounces per acre or “Hornet” at 0.6-1.2 ounces per acre may be
tank mixed with D1691. Use the higher rate in the range for heavier infestations of these weeds.
“Buctril”
“Curtail”
DuPont™ EXPRESS®
“Karmex”
MCPA amine
“Stinger”
2,4-D amine or ester
9
Restrictions for proso millet that is grazed or cut for hay are indicated in Table 4 in the Pasture, Hay, Rangeland, and
General Farmstead section of this label.
PASTURE, HAY, RANGELAND, AND GENERAL FARMSTEAD (NONCROPLAND) AND SMALL GRAINS
(FORAGE SORGHUM, RYE, SUDANGRASS, OR WHEAT) GROWN FOR PASTURE, HAY, AND SILAGE
ONLY
D1691 is registered for use on pasture, hay, rangeland, and general farmstead (non-cropland) (including fencerows and
non-irrigation ditchbanks) for control or suppression of broadleaf weed and brush species listed in the WEEDS
CONTROLLED section. D1691 uses described in this section also pertain to grasses and small grains (forage sorghum,
rye, sudangrass, or wheat) grown for grass, forage, fodder, hay and/or pasture use only. (Grasses and small grains not
grown ONLY for grass, forage, fodder, hay and/or pasture must comply with crop-specific uses in this label.)
D1691 may also be applied to non-cropland areas to control broadleaf weeds in noxious weed control programs, districts,
or areas including broadcast or spot treatment of roadsides and highways, utilities, railroad, and pipeline rights-of-way.
Noxious weeds must be recognized at the state level, but programs may be administered at state, county, or other level.
Some perennial weeds may be controlled with lower rates of either D1691 or D1691 plus 2,4-D (refer to Table 1).
Rates and Timings
Refer to Table 1 for rate selection based on targeted weed or brush species. Some weed species will require tank mixes for
adequate control.
Rates above 32 fluid ounces of D1691 per acre are for spot treatments only. Spot treatment is defined as no more than a
total of 1000 square feet of treated area per acre. Do not broadcast apply more than 32 fluid ounces per acre.
Retreatments may be made as needed; however, do not exceed a total of 32 fluid ounces of D1691 per treated acre during a
growing season.
Grass grown for hay requires a 7-day wait period between application and harvest. Sorghum requires a 20 day waiting
interval for forage and a 30 day waiting interval for fodder.
Crop-Specific Restrictions
Do not apply more than 16 fluid ounces of
DuPont™ D1691 per acre to small grains grown for pasture.
Newly seeded areas may be severely injured if more than 16 fluid ounces of D1691 is applied per acre.
Established grass crops growing under stress can exhibit various injury symptoms that may be more pronounced if
herbicides are applied. Bentgrass, carpetgrass, buffalograss, and St. Augustingrass may be injured if more than 16 fluid
ounces of D1691 is applied per acre. Usually colonial bentgrasses are more tolerant than creeping types. Velvetgrasses are
most easily injured. Treatments will kill or injure alfalfa, clovers, lespedeza, wild winter peas, vetch, and other legumes.
Table 4 lists the timing restrictions for grazing or harvesting hay from treated fields. There are no grazing restrictions for
animals other than lactating dairy animals.
Table 4. Timing Restrictions for Lactating Dairy Animals Following Treatment
D1691 herbicide can be applied using water, oil in water emulsions including invert systems, or sprayable fluid fertilizer as
a carrier (refer to the Compatibility Test for Mix Components). To prepare oil in water emulsions, half-fill spray tank with
water, then add the appropriate amount of emulsifier. With continuous agitation, slowly add the herbicide and then the oil
(such as diesel oil or fuel oil) or a premix of oil plus additional emulsifier to spray tank. Complete filling of spray tank with
water. Maintain vigorous agitation during spray operation to prevent oil and water from forming separate layers. • Spray
Volume: Use up to 600 gallons of diluted spray per treated acre. The volume of spray applied
• Spot Treatments: D1691 may be applied to individual clumps or small areas of undesirable vegetation using handgun or
similar types of application equipment. Apply diluted sprays to allow complete wetting (up to runoff) of foliage and
stems.
Cut Surface Treatments:
D1691 may be applied as a cut surface treatment for control of unwanted trees and prevention of sprouts of cut trees.
Rate: Mix 1 part D1691 with 1 - 3 parts water to create the application solution. Use the lower dilution rate when treating
difficult-to-control species.
• For Frill or Girdle Treatments: Make a continuous cut or a series of overlapping cuts using an axe to girdle tree trunk.
Spray or paint the cut surface with the solution.
• For Stump Treatments: Spray or paint freshly cut surface with the water mix. The area adjacent to the bark should be
thoroughly wet.
D1691 Rate per Treated Acre
(pints)
Up to 1
Up to 2
Up to 4
Days Before Grazing (days)
7
21
40
Days Before Hay Harvest (days)
37
51
70
10
Note: For more rapid foliar effects, 2,4-D may be added to the solution.
Applications For Control of Dormant Multiflora Rose:
D1691 can be applied when plants are dormant as an undiluted spot treatment directly to the soil or as a Lo-Oil basal bark
treatment using an oil-water emulsion solution.
• Spot treatments: Spot treatment applications of D1691 should be applied directly to the soil as close as possible to the
root crown but within 6 - 8” of the crown. On sloping terrain, apply D1691 to the uphill side of the crown. Do not apply
when snow or water prevents applying D1691 directly to the soil. The use rate of D1691 depends on the canopy diameter
of the multiflora rose.
Examples: Use 0.25, 1.0, or 2.35 fluid ounces of D1691 respectively, for 5, 10, or 15 feet canopy diameters.
• Lo-Oil basal bark treatments: For Lo-Oil basal bark treatments, apply D1691 to the basal stem region from the ground
line to a height of 12 - 18”. Spray until runoff, with special emphasis on covering the root crown. For best results, apply
D1691 when plants are dormant. Do not apply after bud break or when plants are showing signs of active growth. Do not
apply when snow or water prevents applying D1691 to the ground line.
To prepare approximately 2 gallons of a Lo-Oil spray solution:
1) Combine 1.5 gallons of water, 1 ounce of emulsifier, 16 fluid ounces of D1691, and 2.5 pints of No. 2 diesel fuel.
2) Adjust the amounts of materials used proportionately to the amount of final spray solution desired.
Do not exceed 8 gallons of spray solution mix applied per acre, per year.
Pasture Tank Mixes
DuPont™ D1691 may be applied in tank mixes with one or more of the following herbicide brands:
CONSERVATION RESERVE PROGRAM (CRP)
D1691 is registered for use on both newly seeded and established grasses grown in Conservation Reserve or federal Set-
Aside Programs. Treatments of D1691 will injure or may kill alfalfa, clovers, lespedeza, wild winter peas, vetch, and other
legumes.
Newly Seeded Areas
D1691 may be applied either preplant or postemergence to newly seeded grasses or small grains (barley, oats, rye,
sudanqrass, wheat, or other grain species grown as a cover crop). Postemergence applications may be made after seedling
grasses exceed the 3-leaf stage. Rates of D1691 greater than 16 fluid ounces per treated acre may severely injure newly
seeded grasses.
Preplant applications may injure new seedlings if the interval between application and grass planting is less than 45 days
per 16 fluid ounces of D1691 applied per treated acre west of the Mississippi River or 20 days per 16 fluid ounces applied
east of the Mississippi River.
Established Grass Stands
Established grass stands are perennial grasses planted one or more seasons prior to treatment. Certain species (bentgrass,
carpetgrass, smooth brome, buffalograss, or St. Augustinegrass) may be injured when treated with more than 16 fluid
ounces of D1691 per treated acre.
When applied at labeled rates, D1691 will control many annual and biennial weeds and provide control or suppression of
many perennial weeds.
Rates and Timings
Apply 4-32 fluid ounces of D1691 per acre. Refer to Table 1 for rates based on target weed species. D1691 may be tank
mixed or applied sequentially with other products labeled for use in Conservation Reserve Programs such as atrazine,
“Cyclone”, glyphosate, “Gramoxone” Inteon, or 2,4-D. Retreatments may be made as needed; however, do not exceed a
total of 64 fluid ounces (4 pints) of D1691 per acre per year.
SMALL GRAINS NOT UNDERSEEDED TO LEGUMES (FALL- AND SPRING-SEEDED BARLEY, OAT,
TRITICALE AND WHEAT)
D1691 combinations with listed tank mix partners will provide control or suppression of the annual broadleaf weeds listed
in the WEEDS CONTROLLED section. For improved control of listed weeds, tank mix D1691 with one or more of the
herbicides listed.
D1691 used in a tank mix with other herbicides offers the best spectrum of weed control and herbicide tolerant or resistant
weed management. Refer to the specific section crop for D1691 application rate and timing.
“Amber”
DuPont™ CIMARRON®
“Crossbow”
“Curtail”
DuPont™ ESCORT® XP
“Garlon”
glyhposate
“Gramoxone” Inteon
“Stinger”
“Tordon” 22K
2,4-D
11
For applications prior to weed emergence or when sulfonylurea-resistant weeds are present or suspected, tank mix a
minimum of 3 fluid ounces of D1691 per treated acre with a non-sulfonylurea herbicide such as 2,4-D or MCPA. Tank
mixing D1691 with these products will offer more consistent control of sulfonylurea-resistant weeds.
Additives: When tank mixing D1691 with sulfonylurea herbicide brands (
DuPont™ ALLY®, “Amber”, DuPont™
EXPRESS®, DuPont™ FINESSE®, DuPont™ GLEAN®, DuPont™ HARMONY® and “Peak”), use use 1-4 pints of an
agriculturally approved surfactant as indicated in the Surfactants and Adjuvants section of this label.
Refer to the specific crop sections below for use rates. When treating difficult to control weeds such as kochia, wild
buckwheat, cow cockle, prostrate knotweed, Russian thistle, and prickly lettuce or when dense vegetative growth occurs,
use the 3-4 fluid ounces of D1691 per acre.
Timings: Apply D1691 before, during, or after planting small grains. See specific small grain crop uses below for
maximum crop stage. For best performance, apply D1691 when weeds are in the 2 - 3 leaf stage and rosettes are less than
2" across. Applying D1691 to small grains during periods of rapid growth may result in crop leaning. This condition is
temporary and will not reduce crop yields.
Restrictions for small grain areas that are grazed or cut for hay are indicated in Table 4 in Pasture, Hay, Rangeland, and
General Farmstead section of this label.
SMALL GRAINS: BARLEY (FALL- AND SPRING-SEEDED)
Early season applications:
Apply 2-4 fluid ounces of DuPont™ D1691 to fall-seeded barley prior to the jointing stage. Apply 2-3 fluid ounces of
D1691 before spring-seeded barley exceeds the 4-leaf stage.
Note: For spring barley varieties that are seeded during the winter months or later, follow the rates and timings given for
spring-seeded barley.
Do not tank mix D1691 with 2,4-D in early season applications on spring-seeded barley.
Preharvest applications:
D1691 can be used to control weeds that may interfere with harvest of fall and spring-seeded barley. Apply 8 fluid ounces
of D1691 per acre as a broadcast or spot treatment to annual broadleaf weeds when barley is in the hard dough stage and
the green color is gone from the nodes (joints) of the stern. Best results will be obtained if application can be made when
weeds are actively growing, but before weeds canopy.
A waiting interval of 7 days is required before harvest. Do not use preharvest-treated barley for seed unless a germination
test is performed on the seed with an acceptable result of 95% germination or better.
For control of additional broadleaf weeds or grasses, D1691 may be tank mixed with other herbicides, such as 2,4-D, that
are labeled for preharvest uses in barley.
Do not make preharvest applications in California.
Barley Tank Mixes
Table 5.
* Follow all tank mix partners labeling for use rates, precautions and restrictions.
1 Do not use low rates of sulfonylureas (Ally, Amber, Express, Finesse, Glean, and Harmony Extra) on more mature weeds or on dense
vegetative growth.
2 When using formulations other than 4 pounds per gallon use pounds of a.e. per acre listed.
3 This tank mix is for fall-seeded barley only
Tank Mix Partner*
DuPont™ ALLY® XP
“Amber”
“Bronate”
“Buctril”
DuPont™ EXPRESS®
DuPont™ FINESSE®
DuPont™ GLEAN®
DuPont™ HARMONY® Extra
MCPA amine or ester
Metribuzin (“Sencor”)
2,4-D amine or ester2,3
Rate Per Acre
0.05 - 0.1 ounce1
0.14 - 0.28 ounce1
0.75 -1 .5 pints
1 - 1.5 pints
0.083 - 0. 167 ounce1
0.167 - 0.33 ounce1
0.167 ounce1
0.167 - 0.33 ounce1
8 - 12 fluid ounces2
(0.25 - 0.375 pound a.e.)
0.125 - 0.47 pound a.i.
8 fluid ounces
(0.25 pound a.e.)
12
SMALL GRAINS: OATS (FALL- AND SPRING-SEEDED)
Early season applications:
Apply 2-4 fluid ounces of D1691 per acre to fall-seeded oat prior to the jointing stage. Apply 2-4 fluid ounces of D1691
before spring-seeded oat exceed the 5-leaf stage.
A waiting interval of 7 days is required before harvest.
D1691 may be tank mixed with MCPA amine or ester for applications in oat.
Do not tank mix D1691 with 2,4-D in oat.
SMALL GRAINS: TRITICALE (FALL- AND SPRING-SEEDED)
Early season applications:
Apply 2-4 fluid ounces of D1691 to triticale.
Early season applications to fall-seeded triticale must be made prior to the jointing stage.
Early season applications to spring-seeded triticale must be made before triticale reaches the 6-leaf stage.
Triticale Tank Mixes:
For best performance, D1691 should be used in tank mix combination with bromoxynil herbicide.
SMALL GRAINS: WHEAT (FALL- AND SPRING-SEEDED)
Early Season Applications:
Apply 2-4 fluid ounces of DuPont™ D1691 to wheat unless using one of the fall-seeded wheat specific programs below.
Early season applications to fall-seeded wheat must be made prior to the jointing stage.
Early season applications to spring-seeded wheat must be made before wheat exceeds the 6-leaf stage.
Early developing wheat varieties such as TAM 107, Madison, or Wakefield must receive application between early tillering
and the jointing stage. Care should be taken in staging these varieties to be certain that the application occurs prior to the
jointing stage.
To improve control of Russian thistle, flixweed, gromwell, or mayweed, add 2,4-D amine or ester to a tank mix with one of
the following herbicide brands: DuPont™ ALLY®, “Amber”, DuPont™ EXPRESS®, DuPont™ FINESSE®, DuPont™
GLEAN®, DuPont™ HARMONY®, or “Peak”.
Specific use programs for fall-seeded wheat only:
D1691 may be used at 6 fluid ounces on fall-seeded wheat in Western Oregon as a spring application only. In Colorado,
Kansas, New Mexico, Oklahoma, and Texas, up to 8 fluid ounces of D1691 may be applied on fall-seeded wheat after it
exceeds the 3-leaf stage for suppression of perennial weeds, such as field bindweed. Applications may be made in the fall
following a frost but before a killing freeze. D1691 may be tank mixed with 2,4-D amine at 8 fluid ounces after wheat
begins to tiller. Periods of extended stress such as cold and wet weather may enhance the possibility of crop injury. For fall
applications only, do not use if the potential for crop injury is not acceptable.
Preharvest applications:
D1691 can be used to control weeds that may interfere with harvest of wheat. Apply 8 fluid ounces D1691 per acre as a
broadcast or spot treatment to annual broadleaf weeds when wheat is in the hard dough stage and the green color is gone
from the nodes (joints) of the stem. Best results will be obtained if application can be made when weeds are actively
growing but before weeds canopy.
A waiting interval of 7 days is required before harvest. Do not use preharvest-treated wheat for seed unless a germination
test is performed on the seed with an acceptable result of 95% germination or better.
For control of additional broadleaf weeds or grasses, D1691 herbicide may be tank mixed with other herbicides such as
ALLY®, glyphosate and 2,4-D. Do not make preharvest applications in California.
13
Wheat Tank Mixes
Table 6.
* Follow all tank mix partners labeling for use rates, precautions and restrictions.
1 Do not use low rates of sufonylurea herbicides, such as ALLY®, “Amber”, EXPRESS®, FINESSE®, GLEAN®, HARMONY®, and
“Peak” on more mature weeds or on dense vegetative growth.
2 Do not use D1691 as a tank mix treatment with “Dakota” or “Tiller” on Durum wheat. Do not tank mix with “Tiller” if wild oat is the
target weed.
3 Tank mixes with “Karmex” and metribuzin are for use in fall-seeded wheat only.
4 A tank mix of up to 4 fluid ounces of DuPont™ D1691 with any glyphosate formulation labeled for use as a preplant application t o
small grains may be applied with no waiting period prior to planting.
5 Up to 32 fluid ounces of (1.0 pound a.e.) may be used on fall-seeded wheat it crop injury is acceptable. When using formulations other
than 4 pounds per gallon, use the pounds of a.e. per acre listed.
SORGHUM
D1691 may be applied preplant, postemergence, or preharvest in sorghum to control many annual broadleaf weeds and to
reduce competition from established perennial broadleaf weeds, as well as control their seedlings.
A waiting interval of 20 days is required for sorghum forage, and a waiting interval of 30 days is required for sorghum
fodder. If sorghum is grown for pasture or hay, refer to Pasture, Hay, Rangeland, and General Farmstead section of this
label for specific grazing and feeding restrictions.
Do not apply D1691 to sorghum grown for seed production.
Preplant Application:
Up to 8 fluid ounces of D1691 may be applied per acre if applied at least 15 days before sorghum planting.
Postemergence Application:
Up to 8 fluid ounces of D1691 per acre may be applied after sorghum is in the spike stage (all sorghum emerged) but
before sorghum is 15" tall. For best performance, apply D1691 when the sorghum crop is in the 3 - 5 leaf stage and weeds
are small (less than 3" tall). Use drop pipes (drop nozzles) if sorghum is taller than 8". Keep the spray off the sorghum
leaves and out of the whorl to reduce the likelihood of crop injury and to improve spray coverage of weed foliage.
Applying D1691 to sorghum during periods of rapid growth may result in temporary leaning of plants or rolling of leaves.
These effects are usually outgrown within 10 - 14 days. Delay harvest until 30 days after treatment.
Preharvest uses in Texas and Oklahoma only:
Up to 8 fluid ounces of D1691 per acre may be applied for weed
suppression any time after the sorghum has reached the soft dough stage. An EPA approved agricultural surfactant may be
used to improve performance. Delay harvest until 30 days after a preharvest treatment.
Split Application:
D1691 may be applied in split applications: preplant followed by postemergence or preharvest; or postemergence followed
by preharvest. Do not exceed 8 fluid ounces per acre, per application or a total of 16 ounces per acre, per season.
Sorghum Tank Mixes and Sequential Treatments
D1691 may be applied prior to, in a tank mix with, or after one or more of the following herbicide brands:
Tank Mix Partner*
ALLY® XP
“Amber”
“Bronate”
“Buctril”
“Curtail”
“Dakota”
EXPRESS®
FINESSE®
GLEAN®
HARMONY®
“Karmex”3
Glyphosate4
MCPA amine or ester5
Metribuzin3 (“Sencor”)
“Peak”1
“Stinger”
“Tiller”2
2,4-D amine or ester5
Rate Per Acre
0.05 - 0.1 ounce1
0.14 - 0.28 ounce1
0.75 - 1.5 pints
1 - 1.5 pints
2 - 2.67 pints
16 fluid ounces
0.083 - 0.167 ounce1
0.167 - 0.33 ounce1
0.167 ounce1
0.167 - 0.33 ounce1
0.5 - 1.5 pounds
12 - 16 fluid ounces
8 - 12 fluid ounces
(0.25 - 0.375 pound a.e.)
0.25 - 0.375 pound a.i.
0.25 - 0.38 ounce
4 - 5.33 fluid ounces
1 - 1.7 pints
8 - 12 fluid ounces
(0.25 - 0.375 pound a.e.)
14
SOYBEAN
Preplant Applications:
Apply 4-16 fluid ounces of D1691 per acre to control emerged broadleaf weeds prior to planting soybeans. Do not exceed
16 fluid ounces of D1691 per acre in a spring application prior to planting soybeans.
Following application of D1691 and a minimum accumulation of 1" rainfall or overhead irrigation, a waiting interval of 14
days is required for 8 fluid ounces per acre or less, and 28 days for 16 fluid ounces per acre. These intervals must be
observed prior to planting soybeans or crop injury may occur.
Do not make D1691 preplant applications to soybeans in geographic areas with average annual rainfall less than 25”.
Preharvest Applications:
D1691 can be used to control many annual and perennial broadleaf weeds and control or suppress many biennial and
perennial broadleaf weeds in soybean prior to harvest. Apply 8-32 fluid ounces of D1691 per acre as a broadcast or spot
treatment to emerged and actively growing weeds after soybean pods have reached mature brown color and at least 75%
leaf drop has occurred.
Do not harvest soybeans until 7 days after application.
Treatments may not kill weeds that develop from seed or underground plant parts, such as rhizomes or bulblets, after the
effective period for D1691. For seedling control, a follow-up program or other cultural practice could be instituted.
Do not use preharvest-treated soybean for seed unless a germination test is performed on the seed with an acceptable result
of 95% germination or better.
Do not feed soybean fodder or hay following a preharvest application of
DuPont™ D1691.
Do not make preharvest applications in California.
Soybean Tank Mixes
Preplant Tank Mixes:
D1691 may be tank mixed with other herbicides registered for early preplant use in soybeans including burndown
herbicides such as glyphosate and 2,4-D or residual herbicides brands such as DuPont™ CINCH®, “Outlook”, or
“Dual”.
Preharvest Tank Mixes:
D1691 may be tank mixed with other herbicides registered for preharvest use in soybeans such as glyphosate and
“Gramoxone” Inteon.
SUGARCANE
Apply D1691 for control of annual, biennial, or perennial broadleaf weeds listed in the WEEDS CONTROLLED section.
Apply 8-24 fluid ounces of D1691 per acre for control of annual weeds, 16-32 fluid ounces for control of biennial weeds,
and 32 fluid ounces for control or suppression of perennial weeds.
Use the higher level of listed rate ranges when treating dense vegetative growth.
A single retreatment may be made as needed, however, do not exceed a total of 64 fluid ounces of D1691 per treated acre
during a growing season.
Timing: D1691 may be applied to sugarcane any time after weeds have emerged, but before the close-in stage of
sugarcane. Applications of 32 fluid ounces of D1691 per acre made over the top of actively growing sugarcane may result
in crop injury.
When possible, direct the spray beneath the sugarcane canopy to minimize the likelihood of crop injury. Using directed
sprays will also help maximize the spray coverage of weed foliage.
Delay harvest until 87 days after treatment.
Sugarcane Tank Mixes
D1691 may be tank mixed with other products registered for use in sugarcane such as “Asulox”, atrazine, “Evik”, and
2,4-D.
Atrazine
“Basagran”
“Bicep”
“Buctril”
DuPont™ CINCH®
“Cyclone”
“Dual”
“Fallow Master”
glyphosate
“Gramoxone” Inteon
“Guardsman”
“Laddok”
“Landmaster”
“Outlook”
“Paramount”
“Peak”
“Permit”
“Roundup”
15
16
FARMSTEAD TURF (NONCROPLAND) AND SOD FARMS
Do not use on residential sites.
For use in general farmstead (noncropland) and sod farms, apply 3-32 fluid ounces of D1691 per acre to control or suppress
growth of many annual, biennial, and some perennial broadleaf weeds commonly found in turf. D1691 will also suppress
many other listed perennial broadleaf weeds and woody brush and vine species. Refer to Table 1 for rates based on targeted
weed or brush species and growth stage. Some weed species will require tank mixes for adequate control.
Repeat treatments may be made as needed; however, do not exceed 32 fluid ounces of D1691 per acre, per growing season.
Apply 30 - 200 gallons of diluted spray per treated acre (3 - 17 quarts of water per 1,000 square feet), depending on density
or height of weeds treated and on the type of equipment used.
To avoid injury to newly seeded grasses, delay application of D1691 until after the second mowing. Furthermore, applying
more than 16 fluid ounces of D1691 per treated acre may cause noticeable stunting or discoloration of sensitive grass
species such as bentgrass, carpetgrass, buffalograss, and St. Augustinegrass.
In areas where roots of sensitive plants extend, do not apply more than 4 fluid ounces of D1691 per treated acre on coarse-
textured (sandy-type) soils, or in excess of 8 fluid ounces per treated acre on fine-textured soils. Do not make repeat
applications in these areas for 30 days and until previous applications of D1691 have been activated in the soil by rain or
irrigation.
Farmstead Turf (noncropland) and Sod Farm Tank Mixes
Apply 3.2-8 fluid ounces of D1691 per acre in a tank mix with one of the products in Table 8 at the rates listed. Use the
higher specified rates when treating established weeds.
Table 7.
* Follow all tank mix partners labeling for use rates, precautions and restrictions.
WEEDS CONTROLLED
GENERAL WEED LIST
ANNUALS
Tank Mix Partner*
bromoxynil (“Buctril”)
MCPA
MCPP
2,4-D
Rate Per Acre
0.375 - 0.5 pound a.i
0.5 - 1.5 pounds a.e.
0.5 - 1 .5 pounds a.e.
0.5 - 1.5 pounds a.e.
Alkanet
Amaranth, Palmer, Powell, Spiny
Aster, Slender
Bedstraw, Catchweed
Beggarweed, Florida
Broomweed, Common
Buckwheat, Tartary, Wild
Buffalobur
Burclover, California
Burcucumber
Buttercup, Corn, Creeping, Roughseed,
Western Field
Carpetweed
Catchfly, Nightflowering
Chamomile, Corn
Chevil, Bur
Chickweed, Common
Clovers
Cockle, Corn, Cow, White
Cocklebur, Common
Copperleaf, Hophornbeam
Cornflower (Bachelor Button)
Croton, Tropic, Woolly
Daisy, English
Dragonhead, American
Eveningprimrose, Cutleaf
Falseflax, Smallseed
Fleabane, Annual
Flixweed
Fumitory
Goosefoot, Nettleleaf
Hempnettle
Henbit
Jacobs-Ladder
Jimsonweed
Knawel (German Moss)
Knotweed, Prostrate
Kochia
Ladysthumb
Lambsquarters Common
Lettuce, Miners, Prickly
Mallow, Common, Venice
Marestail (Horseweed)
Mayweed
Morningglory, Ivyleaf, Tall
Mustard, Black, Blue, Tansy, Treacle,
Tumble, Wild, Yellowtops
Nightshade, Black, Cutleaf
Pennycress, Field (Fanweed, Frenchweed,
Stinkweed)
Pepperweed, Virginia (Peppergrass)
Pigweed, Prostrate, Redroot
(Carelessweed), Rough, Smooth, Tumble
Pineappleweed
Poorjoe
Poppy, Red-horned
Puncturevine
Purslane, Common
Pusley, Florida
Radish, Wild
Ragweed, Common, Giant (Buffaloweed),
Lance-Leaf
Rocket, London, Yellow
Rubberweed, Bitter (Bitterweed)
Salsify
Senna, Coffee
Sesbania, Hemp
Shepherdpurse
Sicklepod
Sida, Prickly (Teaweed)
Smartweed, Green, Pennsylvania
Sneezeweed, Bitter
Sowthistle, Annual, Spiny
Spanish Needles
Spikeweed, Common
Spurge, Prostrate, Leafy
Spurry, Corn
Starbur, Bristly
Starwort, Little
Sumpweed, Rough
Sunflower, Common (Wild), Volunteer
Thistle, Russian
Velvetleaf
Waterhemp, Common, Tall
Waterprimrose, Winged
Wormwood
17
BIENNIALS
PERENNIALS
1 Noted perennials may be controlled using lower rates of DuPont™ D1691 than those recommended for other listed perennial weeds.
WOODY SPECIES
2 Growth suppression only
SPRAY ADJUVANTS - ALL CROPS OR USES
Although not always needed, surfactant may be added to spray solutions of this product.
A quality nonionic surfactant (NIS) of at least 70% active may be added to the spray solution at 0.25 percent surfactant
concentration (1 quart per 100 gallons of spray solution). Read and carefully observe all caution statements and other
information on the surfactant label.
Do not add acidifying buffering agents, acidic pH adjusting agents or adjuvants other than agriculturally approved NIS to
the spray solution.
Do not use crop oil concentrates (COC) or methylated seed oils (MSO) as adjuvants when this product is applied with a
Roundup Brand Agricultural Herbicide. When
DuPont™ D1691 is used with another herbicide that requires the use of a
COC or MSO adjuvant follow the label instructions of that product.
A crop oil concentrate must contain either a petroleum or vegetable oil base and must meet all ofthe following criteria:
• be nonphytotoxic,
• contain only EPA-exempt ingredients,
• provide good mixing quality in the jar test, and
Alfalfa1
Artichoke, Jerusalem
Aster, Spiny, Whiteheath
Bedstraw, Smooth
Bindweed, Field, Hedge
Blueweed, Texas
Bursage, Woollyleaf
1 (Bur
Ragweed, Povertyweed)
Buttercup, Tall
Campion, Bladder
Chickweed, Field, Mouseear
Chicory
1
Clover, Hop
Dandelion
1, Common
Dock1 Broadleaf (Bitterdock), Curly
Dogbane, Hemp
Dogfennel
1 (Cypressweed)
Fern, Bracken
Garlic, Wild
Goldenrod, Canada, Missouri
Goldenweed, Common
Hawkweed
Henbane, Black
1
Horsenettle, Carolina
Ironweed
Knapweed, Black, Diffuse,
Russian
1, Spotted
Milkweed, Climbing, Common,
Honeyvine, Western Whorled
Nettle, Stinging
Nightshade, Silverleaf (White
Horsenettle)
Onion, Wild
Plaintain, Broadleaf, Buckhorn
Pokeweed
Ragweed, Western
Redvine
Sericia Lespedeza
Smartweed, Swamp
Snakeweed, Broom
Sorrel
1, Red (Sheep Sorrel)
Sowthistle1, Perennial
Spurge, Leafy
Sundrops
Thistle, Canada, Scotch
Toadflex, Dalmatian
Tropical Soda Apple
Trumpetcreeper (Buckvine)
Vetch
Waterhemlock, Spotted
Waterprimrose, Creeping
Woodsorrel
1, Creeping, Yellow
Wormwood, Absinth, Louisiana
Yankeeweed
Yarrow, Common
1
Alder
Ash
Aspen
Basswood
Beech
Birch
Blackberry
2
Blackgum2
Cedar2
Cherry
Chinquapin
Cottonwood
Creosotebush
2
Cucumbertree
Dewberry
2
Dogwood2
Elm
Grape
Hawthorn (Thornapple)2
Hemlock
Hickory
Honeylocust
Honeysuckle
Hornbeam
Huckleberry
Huisache
Ivy, Poison
Kudzu
Locust, Black
Maple
Mesquite
Oak
Oak, Poison
Olive, Russian
Persimmon, Eastern
Pine
Plum, Sand (Wild Plum)2
Poplar
Rabbitbrush
Redcedar, Eastern
2
Rose2, McCartney, Multiflora
Sagebrush, Fringed2
Sassafras
Serviceberry
Spicebush
Spruce
Sumac
Sweetgum
2
Sycamore
Tarbush
Willow
Witchhazel
Yaupon
2
Yucca2
Burdock, Common
Carrot, Wild (Queen Annes Lace)
Cockle, White
Eveningprimrose, Common
Geranium, Carolina
Gromwell
Knapweed, Diffuse, Spotted
Mallow, Dwarf
Plantain, Bracted
Ragwort, Tansy
Starthistle, Yellow
Sweetclover
Teasel
Thistle, Bull, Milk, Musk, Plumeless
• be successful in local experience.]
[Optional label statement: The exact composition of suitable products will vary; however, vegetable and petroleum oil
concentrates should contain emulsifiers to provide good mixing quality. Highly refined vegetable oils have proven more
satisfactory than unrefined vegetable oils. ]
[Optional label statement: Adjuvants containing crop oil concentrates may be used in preplant, pre-emergence, and
preharvest application, as well as in pastures and noncropland. Do not use crop oil concentrate for postemergence in-crop
applications unless specifically allowed in the Crop-Specific Information of this label or in separate supplemental labeling.]
Drift Reduction Additives
Nozzle selection is one of the most important parameters for drift reduction. A drift reduction additive may be used with
this product to further reduce fine droplets. Not all drift reduction additives are compatible with every nozzle type and
pesticide / adjuvant combination. Check with the additive manufacturer to insure that the drift additive will work properly
with the spray nozzle, spray pressure and your specific spray solution.
Read and carefully observe all precautions, limitations and all other information on the product label.
CROP ROTATIONAL RESTRICTIONS
The interval between application of this product and the planting of other crops in a crop rotation program is given below.
When counting days from the application of this product, do not count days when the ground is frozen. Planting at intervals
less than specified in this section could result in crop injury. Moisture is essential for the degradation of this herbicide in
soil. If dry weather prevails, use cultivation to allow herbicide contact with moist soil.
Planting/replanting restrictions at application rates of 24 fluid ounces of this product per acre or less: Follow the planting
restrictions in the directions for use for Preplant application in the Crop Specific Information section of this label. Do not
plant barley, oat, wheat, and other grass seedings for 15 days for every 8 fluid ounces of this product applied per acre east
of the Mississippi River and 22 days for every 8 fluid ounces per acre applied west of the Mississippi River. No planting
restrictions apply beyond 120 days after application of this product.
Planting/replanting restrictions at application rates of more than 24 fluid ounces and up to 32 fluid ounces of this product
per acre: Wait a minimum of 120 days after application of this product before planting corn, sorghum and cotton east of the
Rocky Mountains and before planting all other crops grown in areas receiving 30 inches or more rainfall annually. Wait a
minimum of 180 days before planting crops in areas with less than 30 inches of annual rainfall. Wait a minimum of 30 days
for every 16 fluid ounces of this product applied per acre before planting barley, oat, wheat, and other grass seedings east of
the Mississippi River and 45 days for every 16 fluid ounces of this product applied per acre west of the Mississippi River.
APPLICATION EQUIPMENT AND TECHNIQUES
DO NOT APPLY THIS PRODUCT USING AERIAL SPRAY EQUIPMENT.
D1691 can be applied to actively growing weeds as broadcast, band, or spot spray applications using water or sprayable
fertilizer as a carrier. Control weeds early when they are relatively small (less than 4 inches). Timely application to small
weeds early in the season will improve control and reduce weed competition. Refer to table 1 for D1691 application rates
for control or suppression by weed type and growth stage. For crop-specific application timing and other details, refer to
the CROP-SPECIFIC INFORMATION section of this label.
APPLY THIS PRODUCT USING PROPERLY MAINTAINED AND CALIBRATED EQUIPMENT CAPABLE OF
DELIVERING THE DESIRED VOLUMES.
CULTIVATION Do not cultivate within 7 days after applying this product.
Ground Application (Banding)
When applying D1691 by banding, determine the amount of herbicide and water volume needed using the following
formula:
Bandwidth in inches X Broadcast rate per acre = Banding herbicide rate per acre
Row width in inches
Bandwidth in inches
X Broadcast volume per acre = Banding water volume per acre
Row width in inches
Ground Application (Broadcast)
Water Volume: Use a minimum of 10 gallons of spray solution per broadcast acre for optimal performance. Use the higher
spray volume (20 gallons per acre) when treating dense or tall vegetation.
Application Equipment: Select nozzles designed to produce minimal amounts of fine spray particles. Spray with nozzles as
close to the weeds as practical for good weed coverage.
18
Ground Application (Wipers)
DuPont™ D1691 may be applied through wiper application equipment to control or suppress actively growing broadleaf
weeds, brush and vines. Use a solution containing 1 part D1691 to 1 part water. Do not apply greater than 1 lb dicamba acid
equivalent (1 quart of this product) per acre per application. Do not contact desirable vegetation with herbicide solution.
Wiper application may be made to crops (including pastures) and non-cropland areas described in this label with the
exception of cotton, sorghum, and soybean.
Proper Spray System Equipment Cleanout
Minute quantities of dicamba can cause injury to sensitive crops (see the “Sensitive Areas” section of this label for a listing
of sensitive crops).
Clean equipment immediately after using this product, using a triple rinse procedure as follows:
1. After spraying, drain the sprayer (including boom and lines) immediately. Do not allow the spray solution to
remain in the spray boom lines overnight prior to flushing.
2. Flush tank, hoses, boom and nozzles with clean water.
3. Inspect and clean all strainers, screens and filters.
4. Prepare a cleaning solution with a commercial detergent or sprayer cleaner or ammonia according to the
manufacturers directions.
5. Take care to wash all parts of the tank, including the inside top surface. Start agitation in the sprayer and
thoroughly recirculate the cleaning solution for at least 15 minutes. All visible deposits must be removed from the
spraying system.
6. Flush hoses, spray lines and nozzles for at least 1 minute with the cleaning solution.
7. Repeat above steps for two additional times to accomplish an effective triple rinse.
8. Remove nozzles, screens and strainers and clean separately in the cleaning solution after completing the above
procedures.
9. Appropriately dispose of rinsate from steps 1-7 in compliance with all applicable laws and regulations.
10. Drain sump, filter and lines.
11. Rinse the complete spraying system with clean water.
All rinse water must be disposed of in compliance with local, state, and federal guidelines.
SPRAY DRIFT MANAGEMENT
The interaction of many equipment- and weather-related factors determines the potential for spray drift. The applicator is
responsible for considering all these factors when making application decisions. Avoiding spray drift is the responsibility of
the applicator.
IMPORTANCE OF DROPLET SIZE
The most effective drift management strategy is to apply the largest droplets which are consistent with pest control
objectives. The presence of sensitive species nearby, the environmental conditions, and pest pressure may affect how an
applicator balances drift control and coverage. Applying larger droplets reduces drift potential, but will not prevent drift if
applications are made improperly or under unfavorable environmental conditions.
A droplet size classification system describes the range of droplet sizes produced by spray nozzles. The American Society
of Agricultural and Biological Engineers (ASABE) provide a Standard that describes droplet size spectrum categories
defined by a number of reference nozzles (fine, coarse, etc.). Droplet spectra resulting from the use of a specific nozzle may
also be described in terms of volume mean diameter (VMD). Coarser droplet size spectra have larger VMDs and lower
drift potential.
CONTROLLING DROPLET SIZE - GROUND APPLICATION
• Nozzle Type - Use only spray nozzles that produce very coarse to ultra course spray droplets and minimal amounts of
fine spray droplets as defined by ASABES-572.1. Select a nozzle type that is designed for the intended application that
will deliver a spray volume of at least 10 GPA. With most nozzle types, narrower spray angles produce larger droplets.
Do not use conventional flat fan nozzles that produce an excessive amount of driftable fines. The use of low-drift nozzles
will reduce drift potential.
• Pressure - The lowest spray pressures recommended for the nozzle produce the largest droplets. Higher pressure reduces
droplet size and does not improve canopy penetration. When higher flow rates are needed, using a higher-capacity nozzle
instead of increasing pressure results in the coarsest droplet spectrum. Adjust pressure for selected nozzle according to
the nozzle manufacturer to maintain very course to ultra course droplets.
• Flow Rate/Orifice Size - Using the highest flow rate nozzles (largest orifice) that are consistent with pest control
objectives reduces the potential for spray drift. Nozzles with higher rated flows produce coarser droplet spectra.
19
• Equipment Ground Speed - Select a ground speed less than 15 miles per hour that will deliver the desired spray volume
while maintaining the desired spray pressure. Slower speeds generally result in better spray coverage and deposition on
the target area.
• Application Height (ground) - Applications made at the lowest height consistent with pest control objectives, and that
allow the applicator to keep the boom level with the application site and minimize bounce, will reduce the exposure of
spray droplets to evaporation and wind, and reduce spray drift potential. Spray at the appropriate boom height based on
nozzle selection and nozzle spacing (not more than 24 inches above target pest or crop canopy). Set boom to lowest
effective height over the target pest or crop canopy based on equipment manufacturer's directions. For example, the 110°
series nozzle is preferred as it allows for the lowest boom height (maximum of 20 inches above the target pest or crop
canopy). Automated boom height controllers are recommended with large booms to better maintain optimum nozzle to
canopy height. Excessive boom height will increase the potential for spray drift.
WIND
Drift potential is lowest when applications are made in light to gentle sustained winds (3-10 mph), which are blowing in a
constant direction. Many factors, including droplet size and equipment type also determine drift potential at any given wind
speed. AVOID GUSTY OR WINDLESS CONDITIONS.
If the wind speed is 3 miles per hour or less and fog is present, indicating a temperature inversion, do not apply this
product.
• If fog is not present, conduct a smoke test. Smoke that moves upward confirms there is no inversion present whereas
smoke that layers and moves laterally in a concentrated cloud indicates a temperature inversion exists. Do not apply this
product during a temperature inversion. Wait until the temperature has risen at least 3 degrees Fahrenheit from the
morning low temperature or the wind speed is greater than 3 miles per hour to ensure that any inversion has lifted.
• Do not spray this product when the wind is blowing in the direction of a sensitive area at a wind speed greater than 10
miles per hour.
• For wind speed and direction restrictions for application of this product see the table below:
Local terrain can also influence wind patterns. Every applicator is expected to be familiar with local wind patterns and how
they affect spray drift.
TEMPERATURE AND HUMIDITY
Setting up equipment to produce larger droplets to compensate for droplet evaporation can reduce spray drift potential.
Droplet evaporation is most severe when conditions are both hot and dry.
SURFACE TEMPERATURE INVERSIONS
Do not apply during a temperature inversion. Drift potential is high during a surface temperature inversion. Surface
inversions restrict vertical air mixing, which may cause small suspended droplets to remain close to the ground and move
laterally in a concentrated cloud. Surface inversions are characterized by increasing temperature with altitude and are
common on nights with limited cloud cover and light to no wind. They begin to form as the sun sets and often continue into
the morning. Mist or fog may indicate the presence of an inversion in humid areas. Inversions may also be identified by
producing smoke and observing its behavior. Smoke that remains close to the ground, or moves laterally in a concentrated
cloud under low wind conditions indicates a surface inversion. Smoke that moves upward and rapidly dissipates indicates
good vertical air mixing.
SHIELDED SPRAYERS
Shielding the boom or individual nozzles can reduce the effects of wind. However, it is the responsibility of the applicator
to verify that the shields are minimizing drift potential, and not interfering with uniform deposition of the product.
AIR ASSISTED (AIR BLAST) FIELD CROP SPRAYERS
Air assisted field crop sprayers carry droplets to the target via a downward directed air stream. Some may reduce the
potential for drift, but if a sprayer is unsuitable for the application and/or set up improperly, high drift potential can result. It
is the responsibility of the applicator to determine that a sprayer is suitable for the intended application, that it is configured
properly, and that drift potential has been minimized.
Note: Air assisted field sprayers can affect product performance by affecting spray coverage and canopy penetration. Read
the specific crop use and application equipment instructions to determine if an air assisted field crop sprayer can be used.
Wind Speed
< 3 mph
3 10 mph
> 10 15 mph
> 15 mph
Application conditions and restrictions
Do not apply this product if temperature inversion exits
Optimum conditions for application of this product
Do not apply this product when wind is blowing toward sensitive areas
Do not apply this product
20
SENSITIVE AREAS
Sensitive areas include known habitat for threatened or endangered species, non-target sensitive crop, residential areas, and
greenhouses. Applicators are required to ensure that they are aware of the proximity to sensitive areas, to avoid potential
adverse effects from off-target movement of
DuPont™ D1691. The applicator must survey the application site for
neighboring sensitive areas prior to application. The applicator also should consult sensitive crop registries for locating
sensitive areas where available. Failure to follow the requirements in this label, could result in severe injury or destruction
to desirable sensitive crops and trees, particularly beans, cotton, flowers, fruit trees, grapes, ornamentals, peas, potatoes,
soybeans, sunflowers, tobacco, tomatoes, and other broadleaf plants when contacting their roots, stems or foliage.
DRIFT CONTROL ADDITIVES
Using product compatible drift control additives can reduce drift potential. When a drift control additive is used, read and
carefully observe cautionary statements and all other information on the additives label. If using an additive that increases
viscosity, ensure that the nozzles and other application equipment will function properly with a viscous spray solution.
Preferred drift control additives have been certified by the Chemical Producers and Distributors Association (CPDA).
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 and disposal.
Open dumping is prohibited. This product may not be mixed, loaded, or used within 50 feet of all wells including
abandoned wells, drainage wells, and sinkholes.
PESTICIDE STORAGE: Groundwater contamination may be reduced by diking and flooring of permanent liquid
bulk storage sites with an impermeable material. Spillage or leakage should be contained and absorbed with clay
granules, sawdust, or equivalent material for disposal.
Store in original container in a well-ventilated and away from food, pet food, feed, seed, fertilizers, and veterinary
supplies. Avoid cross-contamination with other pesticides. 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: Refer to the Net Contents section of this products labeling for the applicable
“Nonrefillable Container” or “Refillable Container” designation.
Nonrefillable Rigid Plastic and Metal Containers (Capacity Equal to or Less Than 5 Gallons): Nonrefillable
container. Do not reuse or refill this container. Triple rinse container (or equivalent) 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 1/4 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. Then, for Plastic Containers, offer for recycling if available or
puncture and dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state and local
ordinances. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or puncture and
dispose of in a sanitary landfill, or by other procedures approved by state and local authorities.
Nonrefillable Rigid Plastic and Metal Containers (Capacity Greater Than 5 Gallons): Nonrefillable container.
Do not reuse or refill this container. Triple rinse container (or equivalent) promptly after emptying. Triple rinse as
follows: Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full with water.
Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at least one complete
revolution, for 30 seconds. 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 a mix
tank or store rinsate for later use or disposal. Repeat this procedure two more times. Then, for Plastic Containers, offer
for recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. Do not burn, unless
allowed by state and local ordinances. For Metal Containers, offer for recycling if available or reconditioning if
appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local
authorities.
Nonrefillable Rigid Plastic and Metal Containers, e.g., Intermediate Bulk Containers [IBC] (Size or Shape Too
Large to be Tipped, Rolled or Turned Upside Down): Nonrefillable container. Do not reuse or refill this container.
Clean container promptly after emptying the contents from this container into application equipment or mix tank and
before final disposal using the following pressure rinsing procedure. Insert a lance fitted with a suitable tank cleaning
nozzle into the container and ensure that the water spray thoroughly covers the top, bottom and all sides inside the
container. The nozzle manufacturer generally provides instructions for the appropriate spray pressure, spray duration
and/or spray volume. If the manufacturers instructions are not available, pressure rinse the container for at least 60
seconds using a minimum pressure of 30 PSI with a minimum rinse volume of 10% of the container volume. Drain,
pour or pump rinsate into application equipment or rinsate collection system. Repeat this pressure rinsing procedure
two more times. Then, for Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary
landfill, or by incineration. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or
puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local authorities.
21
NOTICE TO BUYER: Purchase of this material does not confer any rights under patents of countries outside of the
United States.
The DuPont Oval Logo, DuPont™, ACCENT®, ALLY®, BASIS®, BREAKFREE®, CIMARRON®, CINCH®,
EXPRESS®, FINESSE®, GLEAN®, HARMONY® and RESOLVE® are trademarks or registered trademarks of E. I.
duPont de Nemours & Company
“Bullet”, “Fallow Master”, “Harness”, “Landmaster”, “Lasso”, “Roundup” , and “Roundup Ready” are trademarks or registered trademarks of Monsanto
Technology LLC.
“Banvel”, “Basagran”, “Clearfield”, “Guardsman”, “Laddok”, “Lightning”, “Paramount”, “Prowl” are trademarks or registered trademarks of BASF.
“Amber”, “Beacon”, “Bicep”, “Caparol”, “Cyclone”, “Dual”, “Evik”, “Exceed”, “Gramoxone”, “Peak”, “Princep”, “Spirit” and “Touchdown” are
trademarks or registered trademarks of Syngenta Crop Protection, LLC
“Karmex” is a registered trademark of Makhteshim Agan of North America, Inc.
“Axiom”, “Buctril”, “Bronate”, “Liberty”, “Liberty Link” and “Tiller” are trademarks or registered trademarks of Bayer CropScience.
“Asulox” is a registered trademark of United Phosphorus, Inc..
“Sencor” is a registered trademark of Bayer Environmental Science.
“Crossbow”, “Curtail”, “Fultime”, “Garlon”, “Hornet”, “Kerb”, “Lorsban”, “Stinger”, “Surpass”, “TopNotch” and “Tordon” are trademarks or registered
trademarks of Dow AgroSciences LLC.
“Dakota” is a trademark of Rotam North America, Inc.
“Permit” is a registered trademark of Gowan Company.
All other trademarks are the property of their respective owners.
D - 1937 072
All Refillable Containers: Refillable container. Refilling Container: Refill this container with DuPont™ D1691
herbicide containing dicamba only. Do not reuse this container for any other purpose. Cleaning before refilling is the
responsibility of the refiller. Prior to refilling, inspect carefully for damage such as cracks, punctures, abrasions, worn
out threads and closure devices. If damage is found, do not use container, contact DuPont at the number below for
instructions. Check for leaks after refilling and before transporting. If leaks are found, do not reuse or transport
container, contact DuPont at the number below for instructions. Disposing of Container: Do not reuse this container
for any other purpose other than refilling (see preceding). Cleaning the container before final disposal is the
responsibility of the person disposing of the container. To clean the container before final disposal, use the following
pressure rinsing procedure. Insert a lance fitted with a suitable tank cleaning nozzle into the container and ensure that
the water spray thoroughly covers the top, bottom and all sides inside the container. The nozzle manufacturer
generally provides instructions for the appropriate spray pressure, spray duration and/or spray volume. If the
manufacturers instructions are not available, pressure rinse the container for at least 60 seconds using a minimum
pressure of 30 PSI with a minimum rinse volume of 10% of the container volume. Drain, pour or pump rinsate into
application equipment or rinsate collection system. Repeat this pressure rinsing procedure two more times. Then, for
Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by incineration.
Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for recycling if available or
reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures approved by
state and local authorities.
Do not transport if container is damaged or leaking. If the container is damaged, leaking or obsolete, or in the event
of a major spill, fire or other emergency, contact DuPont at 1-800-441-3637, day or night.
22
23
LIMITATION OF
WARRANTY AND LIABILITY
NOTICE: Read this Limitation of Warranty and Liability Before Buying or Using This Product. DuPont Will Not Be
Responsible for Losses or Damages Resulting from the Use of This Product in Any Manner Not Specifically Directed by
DuPont. User Assumes All Risks Associated With Such Non-Directed Use.
If the Terms Are Not Acceptable, Return the Product at Once, Unopened, and the Purchase Price Will Be Refunded.
It is impossible to eliminate all risks associated with the use of this product. Such risks arise from weather conditions, soil
factors, off target movement, unconventional farming techniques, presence of other materials, the manner of use or
application, or other unknown factors, all of which are beyond the control of DuPont. These risks can cause: ineffectiveness of
the product, crop injury, or injury to non-target crops or plants. WHEN YOU BUY OR USE THIS PRODUCT, YOU AGREE
TO ACCEPT THESE RISKS.
DuPont warrants that this product conforms to the chemical description on the label thereof and is reasonably fit for the
purpose stated in the Directions for Use, subject to the inherent risks described above, when used in accordance with the
Directions for Use under normal conditions.
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, DUPONT MAKES NO OTHER EXPRESS OR IMPLIED
WARRANTY OF FITNESS OR OF MERCHANTABILITY OR ANY OTHER EXPRESS OR IMPLIED WARRANTY. TO
THE EXTENT CONSISTENT WITH APPLICABLE LAW, IN NO EVENT SHALL DUPONT OR SELLER BE LIABLE
FOR ANY INCIDENTAL, CONSEQUENTIAL OR SPECIAL DAMAGES RESULTING FROM THE USE OR
HANDLING OF THIS PRODUCT. BUYER'S OR USER'S BARGAINED-FOR EXPECTATION IS CROP PROTECTION.
TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER
AND THE EXCLUSIVE LIABILITY OF DUPONT OR SELLER, FOR ANY AND ALL CLAIMS, LOSSES, INJURIES OR
DAMAGES (INCLUDING CLAIMS BASED ON BREACH OF WARRANTY OR CONTRACT, NEGLIGENCE, TORT
OR STRICT LIABILITY), WHETHER FROM FAILURE TO PERFORM OR INJURY TO CROPS OR OTHER PLANTS,
AND RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, SHALL BE THE RETURN OF THE
PURCHASE PRICE OF THE PRODUCT, OR AT THE ELECTION OF DUPONT OR SELLER, THE REPLACEMENT OF
THE PRODUCT.
To the extent consistent with applicable law that allows such requirement, DuPont or its Ag Retailer must have prompt notice
of any claim so that an immediate inspection of buyer's or user's growing crops can be made. Buyer and all users shall
promptly notify DuPont or a DuPont Ag Retailer of any claims, whether based on contract, negligence, strict liability, other
tort or otherwise, or be barred from any remedy.
This Limitation of Warranty and Liability may not be amended by any oral or written agreement.
For product information call: 1-888-6-DUPONT [1-888-638-7668]
Internet address: http://cropprotection.dupont.com/
© 2015 E. I. du Pont de Nemours and Company, Chestnut Run Plaza, 974 Centre Road, Wilmington, DE 19805 U.S.A.
All rights reserved.