crop-chem-docs/corpus/epa_ppls/5905-503.md

# WEED-RHAP A-6D HERBICIDE 2,4-D AMINE

- EPA Reg No: **5905-503**
- Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP
- Signal word: Danger
- Active ingredients: 2,4-D, dimethylamine salt (66.3%)
- Label accepted: 2018-07-16
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/005905-00503-20180716.pdf

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 
 WASHINGTON, DC 20460 
 
 
 
Fast Track Label Acceptable v.20150320 
OFFICE OF CHEMICAL SAFETY 
AND POLLUTION PREVENTION 
July 16, 2018 
 
Bill Washburn 
Registration Manager 
Helena Chemical Company 
7664 Smythe Farm Rd. 
Memphis, TN 38120 
 
Subject: Label Amendment – add uses on asparagus, grasses, pome/stone/tree nut 
orchards, strawberries, sugarcane in Hawaii, and wild rice 
 Product Name: Weed-Rhap A-6D Herbicide 2,4-D Amine 
 EPA Registration Number: 5905-503 
 Application Date: August 16, 2017 
 Decision Number: 533598 
 
Dear Mr. Washburn: 
 
The amended label referred to above, submitted in connection with registration under the Federal 
Insecticide, Fungicide, and Rodenticide Act (FIFRA), as amended, is acceptable. This approval 
does not affect any conditions that were previously imposed on this registration. You continue to 
be subject to existing conditions on your registration and any deadlines connected with them. 
 
A stamped copy of your labeling is enclosed for your records. This labeling supersedes all 
previously accepted labeling. You must submit one copy of the final printed labeling before you 
release the product for shipment with the new labeling. In accordance with 40 CFR 152.130(c), 
you may distribute or sell this product under the previously approved labeling for 18 months 
from the date of this letter. After 18 months, you may only distribute or sell this product if it 
bears this new revised labeling or subsequently approved labeling. “To distribute or sell” is 
defined under FIFRA section 2(gg) and its implementing regulation at 40 CFR 152.3. 
 
Should you wish to add/retain a reference to the company’s website on your label, then please be 
aware that the website becomes labeling under FIFRA 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 product’s 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 
EPA’s Office of Enforcement and Compliance.

Page 2 of 2 
EPA Reg. No. 5905-503 
Decision No. 533598 
 
Your release for shipment of the product constitutes acceptance of these conditions. If these 
conditions are not complied with, the registration will be subject to cancellation in accordance 
with FIFRA section 6. 
 
If you have any questions, please contact Mindy Ondish by phone at 703-605-0723, or via email 
at ondish.mindy@epa.gov. 
 
 
 
 
 
Enclosure 
 
Sincerely, 
 
Kathryn Montague, Product Manager 23 
Herbicide Branch 
Registration Division (7505P) 
Office of Pesticide Programs

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 1 
2,4-D GROUP 4 HERBICIDE
WEED RHAP® A-6D 
2,4-D AMINE HERBICIDE
ACTIVE INGREDIENT: 
Dimethylamine Salt of 2,4-Dichlorophenoxyacetic Acid ...…. 66.3% 
OTHER INGREDIENTS: ...........................................………… 33.7% 
TOTAL.…………….............…….....………............... 100.0% 
Equivalent to 55.1% of 2,4-Dichlorophenoxyacetic acid or 5.6 lb./gal. 
Isomer specific by AOAC Method 6.275, 13th Ed., 1980. 
 
 
KEEP OUT OF REACH OF CHILDREN 
DANGER - PELIGRO 
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 IN EYES: x Hold eyelid open and rinse slowly and gently with water for 15-20 minutes. 
x Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eyes. 
x Call a poison control center or doctor immediately for treatment advice. 
IF ON SKIN OR
CLOTHING: 
x Take off contaminated clothing. 
x Rinse skin immediately with plenty of water for 15-20 minutes. 
x Call a poison control center or doctor immediately for treatment advice. 
IF SWALLOWED: x Call a poison control center or doctor immediately for treatment advice. 
x Do not induce vomiting unless told to do so by a poison control center or doctor. 
x Have a person sip a glass of water if able to swallow. 
x Do not give anything by mouth to an unconscious or convulsing person. 
HOT LINE NUMBER 
Have the product container or label with you when calling a poison control center or doctor or going for treatment. In case 
of emergency, call ChemTrec at 1-800-424-9300.
NOTE TO PHYSICIAN 
Probable mucosal damage may contraindicate the use of gastric lavage. 
SEE INSIDE PANEL FOR ADDITIONAL PRECAUTIONARY STATEMENTS. 
EPA REG. NO. 5905-503 E P A E S T . N O . 
N E T C O N T E N T S : A D 0 8 1 9 1 0 
MANUFACTURED FOR 
HELENA AGRI-ENTERPRISES, LLC 
225 SCHILLING BOULEVARD, SUITE 300 
COLLIERVILLE, TN 38017 
07/16/2018
5905-503

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 2 
PRECAUTIONARY STATEMENTS 
HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
DANGER-PELIGRO 
DANGER. Corrosive. Causes irreversible eye damage. May be fatal if absorbed through skin. Harmful if swallowed. Do 
not get in eyes, on skin, or on clothing. Wash thoroughly with soap and water after handling and before eating, drinking, 
chewing gum, using tobacco, or using the toilet. Remove and wash contaminated clothing before reuse. 
PERSONAL PROTECTIVE EQUIPMENT (PPE) 
 
All mixers, loaders, applicators, flaggers, and other handlers must wear: 
x Coveralls over short-sleeved shirt and short pants 
x Chemical-resistant footwear plus socks 
x Chemical-resistant gloves made of barrier laminate, butyl rubber •14 mils, nitrile rubber •14 mils, or Viton •14 
mils 
x Protective Eyewear (goggles or face shield) 
x Chemical-resistant apron when applying postharvest dips or sprays to citrus, applying with any handheld nozzle 
or equipment, mixing or loading, cleaning up spills or equipment, or otherwise exposed to the concentrate. 
x For overhead exposure wear chemical-resistant headgear 
 
If this container contains over 1 gallon and less than 5 gallons, mixers and loaders who do not use a mechanical system 
(probe and pump) to transfer the contents of this container must wear coveralls or a chemical-resistant apron in addition 
to the other require PPE. 
 
Follow manufacturer's instructions for cleaning/maintaining PPE. If no such instructions for washables, use detergent and 
hot water. Keep and wash PPE separately from other laundry. After each day of use, clothing or PPE must not be re-
used until it has been cleaned. 
Engineering Controls Statements 
If this container contains 5 gallons or more in capacity, do not open pour. A mechanical system (such as a probe and 
pump or spigot) must be used for transferring the contents of this container. If the contents of a non-refillable pesticide 
container are emptied, the probe must be rinsed before removal. If the mechanical system is used in a manner that 
meets the requirements listed in the Worker Protection Standard (WPS) for agricultural pesticides [40 CFR 170.240 (d) 
(4)], the handler PPE requirements may be reduced or modified as specified in the WPS. 
 
When handlers use enclosed cabs, or aircraft 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. 
 
USER SAFETY RECOMMENDATIONS 
Users should: 
- Remove clothing 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. 
 
 
ENVIRONMENTAL HAZARDS 
For terrestrial uses: This product may be toxic to fish and aquatic invertebrates. Do not apply directly to water, or to areas 
where surface water is present or to intertidal areas below the mean high water mark except as noted on appropriate 
labels. Drift and runoff may be hazardous to aquatic organisms in water adjacent to treated areas. Do not contaminate 
water when disposing of equipment washwaters or rinsate. 
 
This chemical has properties and characteristics associated with chemicals detected in groundwater. The use of this 
chemical in areas where soils are permeable, particularly where the water table is shallow, may result in groundwater 
contamination. Application around a cistern or well may result in contamination of drinking water or groundwater.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 3 
For aquatic uses: 
Fish breathe dissolved oxygen in the water and decaying weeds also use oxygen. When treating continuous, dense weed 
masses, it may be appropriate to treat only part of the infestation at a time. For example, apply the product in lanes 
separated by untreated strips that can be treated after vegetation in treated lanes has disintegrated. During the growing 
season, weeds decompose in a 2 to 3 week period following treatment. Begin treatment along the shore and proceed 
outwards in beds to allow fish to move into untreated areas. Waters having limited and less dense weed infestations may 
not require partial treatments. 
 
GROUNDWATER CONTAMINATION 
Most cases of groundwater contamination involving phenoxy herbicides such as 2,4-D have been associated with 
mixing/loading and disposal sites. Caution should be exercised when handling 2,4-D pesticides at such sites to prevent 
contamination of groundwater supplies. Use of closed systems for mixing or transferring this pesticide will reduce the 
probability of spills. Placement of the mixing/loading equipment on an impervious pad to contain spills will help prevent 
groundwater contamination. 
 
CHEMIGATION PROHIBITION 
Do not apply this product through any type of irrigation system. 
 
DIRECTIONS FOR USE 
It is a violation of Federal law to use this product in a manner inconsistent with its labeling. 
 
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 regulation. 
 
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 interval. The requirements in this box only apply to uses of this product 
that are covered by the Worker Protection Standard. 
 
Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 48 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: 
x Coveralls over short-sleeved shirt and short pants
x Chemical-resistant gloves made of barrier laminate, butyl rubber •14 mils, nitrile rubber •14 mils, or Viton •14 
mils 
x Chemical-resistant footwear plus socks 
x Protective Eyewear 
x Chemical-resistant headgear for overhead exposure 
 
 
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 
treatment area until sprays have dried.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 4 
STORAGE AND DISPOSAL 
PROHIBITIONS: Do not contaminate water, food, or feed by storage or disposal. Do not store under conditions which 
might adversely affect the container or its ability to function properly. 
 
PESTICIDE STORAGE: Do not store below temperature of 0oF. If frozen, warm to 40oF and redissolve before using by 
rolling or shaking container. This product can be stored in an unheated building. Store in a safe manner. Store in original 
container only. Keep container tightly closed when not in use. Reduce stacking height where local conditions can affect 
package strength. Personnel should use clothing and equipment consistent with good pesticide handling. 
PESTICIDE DISPOSAL: Pesticide wastes are toxic. Improper disposal of excess pesticide, spray mixture, or rinsate is a 
violation of Federal law and may contaminate groundwater. If these wastes cannot be disposed of by use according to 
label instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous Waste representative 
at the nearest EPA Regional Office for guidance.
CONTAINER HANDLING : 
NONREFILLABLE METAL CONTAINER (EQUAL TO OR LESS THAN 5 GALLONS): 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 
¼ full with water and recap. Shake for 10 seconds. Pour rinsate into application equipment or a mix tank or store rinsate 
for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure two more times. Offer 
for recycling, if available, or puncture and dispose of in a sanitary landfill, or by other procedures approved by state and 
local authorities. 
NONREFILLABLE METAL CONTAINER (GREATER THAN 5 GALLONS): 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 ¼ 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. Offer for recycling, if available, or puncture and dispose of in a sanitary landfill, or by other procedures 
approved by state and local authorities.
NONREFILLABLE PLASTIC CONTAINER (EQUAL TO OR LESS THAN 5 GALLONS): 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 
¼ full with water and recap. Shake for 10 seconds. Pour rinsate into application equipment or a mix tank or store rinsate 
for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure two more times. Offer 
for recycling, if available, or puncture and dispose of in a sanitary landfill, or incineration if allowed by state and local 
authorities, by burning. If burned, stay out of smoke.
NONREFILLABLE PLASTIC CONTAINER (GREATER THAN 5 GALLONS): 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 ¼ 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. Offer for recycling, if available, or puncture and dispose of in a sanitary landfill, or incineration if allowed 
by state and local authorities, by burning. If burned, stay out of smoke. 
REFILLABLE CONTAINER: Refill this container with pesticide only. Do not reuse this container for any other purpose. 
Prior to refilling, inspect thoroughly for damage such as cracks, punctures, abrasions, and damaged or worn out threads 
on closure devices. Do not refill or transport damaged or leaking containers. Check for leaks after refilling and before 
transportation. Cleaning the container before final disposal is the responsibility of the person disposing of the container. 
Cleaning before refilling is the responsibility of the refiller. To clean the container before final disposal, empty the 
remaining contents from this container into application equipment or mix tank. Fill the container about 10 percent full with 
water. Agitate vigorously or recirculate water with the pump for 2 minutes. Pour or pump rinsate into application 
equipment or rinsate collection system. Repeat this rinsing procedure two more times. If the container is not being refilled, 
return to the point of purchase or designated location.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 5 
This product can reach groundwater as a result of mixing and loading. To minimize groundwater contamination from spills 
during mixing, loading, and cleaning of equipment, take the following steps: 
 
Mixing and Loading: 
The mixing and loading of spray mixtures into the spray equipment must be carried out on an impervious pad (i.e., 
concrete slab, plastic sheeting) large enough to catch any spilled material. If spills occur, contain the spill by using an 
absorbent material (e.g., sand, earth, or synthetic absorbent). Dispose of the contaminated absorbent material by placing 
in a plastic bag and following disposal instructions on this label. 
 
Cleaning of Equipment: When cleaning equipment, do not pour the washwater on the ground; spray or drain over a 
large area away from wells and other water sources. 
 
SPRAY DRIFT MANAGEMENT 
A variety of factors including weather conditions (e.g., wind direction, wind speed, temperature, relative humidity) and 
method of application (e.g., ground, aerial, airblast, chemigation) can influence pesticide drift. The applicator must 
evaluate all factors and make appropriate adjustments when applying this product. 
 
Droplet Size 
When applying sprays that contain 2,4-D as the sole active ingredient, or when applying sprays that contain 2,4-D mixed 
with active ingredients that require a Coarse or coarser spray, apply only as a Coarse or coarser spray (ASABE standard 
572) or volume mean diameter of 385 microns or greater for spinning atomizer nozzles. 
 
When applying sprays that contain 2,4-D mixed with other active ingredients that require a Medium or more fine spray, 
apply only as a Medium or coarser spray (ASABE standard 572) or a volume mean diameter of 300 microns or greater for 
spinning atomizer nozzles. 
 
Wind Speed 
Do not apply at wind speeds greater than 15 mph. Only apply this product if the wind direction favors on-target deposition 
and there are not sensitive areas (including, but not limited to, residential areas, bodies of water, known habitat for 
nontarget species, nontarget crops) with 250 feed downwind. If applying a Medium spray, leave one swath unsprayed at 
the downwind edge of the treated field. 
 
Temperature Inversions 
If applying at wind speeds less than 3 mph, the applicator must determine if: a) conditions of temperature inversion exist, 
or b) stable atmospheric conditions exist at or below nozzle height. Do not make applications into areas of temperature 
inversions or stable atmospheric conditions. 
 
Susceptible Plants 
Do not apply under circumstances where spray drift may occur to food, forage, or other plantings that might be damaged 
or crops thereof rendered unfit for sale, use, or consumption. Susceptible crops including, but are not limited to, cotton, 
okra, flowers, grapes (in growing stage), fruit trees (foliage), soybeans (vegetable stage), ornamentals, sunflowers, 
tomatoes, beans, and other vegetables, or tobacco. Small amounts of spray drift that might not be visible may injure 
susceptible broadleaf plants. 
 
Other State and Local Requirements 
Applicators must follow all state and local pesticide drift requirements regarding application of 2,4-D herbicides. Where 
states have more stringent regulations, they must be observed. 
 
Equipment 
 
All aerial and ground applications equipment must be properly maintained and calibrated using appropriate carriers or 
surrogates. 
 
The boom length must not exceed 75% of the wingspan or 90% of the rotor blade diameter. 
 
Release spray at the lowest height consistent with efficacy and flight safety. Do not release spray at a height greater than 
10 fees above the crop canopy unless a greater height is required for aircraft safety. This requirement does not apply to 
forestry or rights-of-way applications.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 6 
 
When applications are made with a crosswind, the swath will be displaced downwind. The applicator must compensate for 
this by adjusting the path of the aircraft upwind. 
 
Do not apply with a nozzle height greater than 4 feet above the crop canopy. 
 
Resistance Management Recommendations 
 
For resistance management, Weed Rhap A-6D is a Group 4 herbicide. Any weed population may contain or develop 
plants naturally resistant to Weed Rhap A-6D and other Group 4 herbicides. The resistant biotypes may dominate the 
weed population if these herbicides are used repeatedly in the same field. Appropriate resistance management strategies 
should be followed. 
 
To delay herbicide resistance take one or more of the following steps: 
 
• Rotate the use of Weed Rhap A-6D or other Group 4 herbicides within a growing season sequence or among growing 
seasons with different herbicide groups that control the same weeds in a field. 
 
• Use tank mixtures with herbicides from a different group if such use is permitted; where information on resistance in 
target weed species is available, use the less resistance-prone partner at a rate that will control the target weed(s) equally 
as well as the more resistance-prone partner. Consult your local extension service or certified crop advisor if you are 
unsure as to which active ingredient is currently less prone to resistance. 
 
• Adopt an integrated weed-management program for herbicide use that includes scouting and uses historical information 
related to herbicide use and crop rotation, and that considers tillage ( or other mechanical control methods), cultural ( e.g., 
higher crop seeding rates; precision fertilizer application method and timing to favor the crop and not the weeds), 
biological (weed-competitive crops or varieties) and other management practices. 
 
• Scout after herbicide application to monitor weed populations for early signs of resistance development. Indicators of 
possible herbicide resistance include: (1) failure to control a weed species normally controlled by the herbicide at the dose 
applied, especially if control is achieved on adjacent weeds; (2) a spreading patch of non-controlled plants of a particular 
weed species; (3) surviving plants mixed with controlled individuals of the same species. If resistance is suspected, 
prevent weed seed production in the affected area by an alternative herbicide from a different group or by a mechanical 
method such as hoeing or tillage. Prevent movement of resistant weed seeds to other fields by cleaning harvesting and 
tillage equipment when moving between fields, and planting clean seed. 
 
• If a weed pest population continues to progress after treatment with this product, discontinue use of this product, and 
switch to another management strategy or herbicide with a different mode of action, if available. 
 
• Contact your local extension specialist or certified crop advisors for additional pesticide resistance-management and/or 
integrated weed-management recommendations for specific crops and weed biotypes. 
 
• For further information or to report suspected resistance, contact a Helena Agri-Enterprises, LLC representative at 901-
761-0050 or at helenaagri.com." 
 
Fields should be scouted prior to application to identify the weed species present and their growth stage to determine if 
the intended application will be effective. 
 
Fields should be scouted after application to verify that the treatment was effective. 
 
Suspected herbicide-resistant weeds may be identified by these indicators: 
* Failure to control a weed species normally controlled by the herbicide at the dose applied, especially if control is 
achieved on adjacent weeds; 
* A spreading patch of non-controlled plants of a particular weed species; and 
* Surviving plants mixed with 
controlled individuals of the same species. 
 
Report any incidence of non-performance of this product against a particular weed species to your Helena Agri-
Enterprises, LLC retailer, representative or call 901-761-0050. If resistance is suspected, treat weed escapes with an

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 7 
herbicide having a different mechanism of action and/or use non-chemical means to remove escapes, as practical, with 
the goal of preventing further seed production. 
 
Plant into weed-free fields and keep fields as weed-free as possible. 
 
To the extent possible, use a diversified approach toward weed management. Whenever possible incorporate multiple 
weed-control practices such as mechanical cultivation, biological management practices, and crop rotation. 
 
Fields with difficult to control weeds should be rotated to crops that allow the use of herbicides with alternative 
mechanisms of action or different management practices. 
 
To the extent possible do not allow weed escapes to produce seeds, roots or tubers. Manage weed seeds at harvest and 
post-harvest to prevent a buildup of the weed seedbank. 
 
Prevent field-to-field and within-field movement of weed seed or vegetative propagules. Thoroughly clean plant residues 
from equipment before leaving fields. 
 
Prevent an influx of weeds into the field by managing field borders. 
 
Identify weeds present in the field through scouting and field history and understand their biology. The weed-control 
program should consider all of the weeds present. 
 
Difficult to control weeds may require sequential applications of herbicides with differing mechanisms of action. 
 
Apply this herbicide at the correct timing and rate needed to control the most difficult weed in the field. 
 
Use a broad spectrum soil-applied herbicide with a mechanism of action that differs from this product as a foundation in a 
weed-control program. Do not use more than two applications of this or any other herbicide with the same mechanism of 
action within a single growing season unless mixed with an herbicide with another mechanism of action with an 
overlapping spectrum for the difficult-to-control weeds. 
 
If resistance is suspected, treat weed escapes with an herbicide with a different MOA or use non-chemical methods to 
remove escapes. 
 
PRODUCT INFORMATION 
Performance of this product may be affected by local conditions, crop varieties, and application method. User should 
consult local extension service, agricultural experiment, or university weed specialists, and state regulatory agencies for 
recommendations in your area. 
 
Best results are obtained when product is applied to young succulent weeds that are actively growing. Use the lower 
specified application rates on susceptible annual weeds. For perennial weeds and conditions such as the very dry areas 
of the western states, where control is difficult, the higher specified application rates should be used. 
 
When product is used for weed control in crops, the growth stage of the crop must be considered. 
 
Some plants and weeds, especially woody varieties, are difficult to control and may require repeat applications. Apply at 1 
to 5 gallons of total spray by air or 5 to 25 gallons by ground equipment unless otherwise directed. In either case, use the 
same amount of 2,4-D listed per acre. For crop uses, do not mix with oil, surfactants, or other adjuvants unless specifically 
specified on label. To do so may reduce herbicides selectivity and could result in crop damage. 
 
Aerial application should be used only when there is no danger of drift to susceptible crops. Many states have regulations 
concerning aerial application of 2,4-D formulations. Consult local regulatory authorities before making applications. Weed 
Rhap® A-6D contains the Dimethylamine salt of 2,4-D, one of the least volatile forms of 2,4-D. 
 
Because coarse sprays are less likely to drift than fine, do not use equipment (such as hollow cone small orifice nozzles) 
or conditions (such as high pressure) that produce such sprays. 
Product should not be allowed to come into contact with desirable, susceptible plants such as beans, cotton, fruit trees, 
grapes, legumes, ornamentals, peas, tomatoes, and other vegetables. Product should not be used in greenhouses. 
Excessive amounts of this product in the soil may temporarily inhibit seed germination and all plant growth.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 8 
 
Users should note that herbicide treatment of public water requires a permit from appropriate state agencies in most 
states. Your state Conservation Department, or Game and Fish Commission will aid you in securing a permit in your state. 
 
If stored below freezing, product should be warmed to at least 40oF and agitated before using. This does not affect the 
efficacy of the product. 
 
Spray equipment used to apply 2,4-D should not be used for any other purpose until thoroughly cleaned with a suitable 
chemical cleaner. 
 
Spray Preparation: Add the specified amount of product to approximately one-half the volume of water to be used for 
spraying. Agitate well, then add the remainder of the water. Continue agitation during application until spray tank is empty. 
 
Use in Liquid Nitrogen Fertilizer: Product may be combined with liquid nitrogen fertilizer suitable for foliar application on 
corn, grass, pastures, or small grains in one operation. Use Weed Rhap® A-6D according to directions on this label for 
those crops. Use liquid nitrogen fertilizer at rates recommended by supplier or extension service specialist. Mix the Weed 
Rhap® A-6D and fertilizer according to the following instructions: 
 
Fill the spray tank approximately 1/2 full with the liquid nitrogen fertilizer. In a separate container, mix the amount of Weed 
Rhap® A-6D to be used with an equal amount of water. Add Weed Rhap® A-6D mixture to the spray tank while agitating. 
Add the remainder of the liquid fertilizer while continuing to agitate. Apply immediately, maintaining agitation during 
application until tank is empty. DO NOT APPLY DURING COLD (NEAR FREEZING) WEATHER. Spray mixture must be 
used immediately and may not be stored. 
 
NOTE: Pre-mixing the Weed Rhap® A-6D with an equal amount of water is important. 
 
WHERE TO USE 
Weed Rhap® A-6D is used to control broadleaved weeds in asparagus, wild rice in Minnesota, pome fruits, stone fruits, 
tree nuts, strawberries, sugarcane in HI, and grasses, cereal crops, corn, sorghum, weeds and brush in rangeland, 
pastures, rights-of-way, similar noncrop uses, tree injection, and for aquatic weed control. 
 
PLANTS CONTROLLED 
Weed Rhap® A-6D will kill or control the following in addition to many other noxious plants susceptible to 2,4-D: 
 
Arrowhead 
Artichoke 
Bindweed 
 (hedge, field, and European) 
Bitter wintercress 
Box elder 
Buckhorn 
Bull thistle 
Bulrush 
Bur ragweed 
Burdock 
Buttercup 
Canada thistle 
C a t n i p 
Chickweed 
Chicory 
Cocklebur 
Coffee bean 
Creeping jenny 
Curley indigo 
Duckweed 
Elderberry 
Goldenrod 
Ground Ivy 
Hemp 
Hoary cress 
Honeysuckle 
Indigo 
Ironweed 
Jimsonweed 
Lambsquarters 
Locoweed 
Mexican weed 
Morningglory 
Mustard 
Nutgrass 
Parrot feather 
Pennywort 
Pigweed 
Plaintain 
Poison Ivy 
Pokeweed 
Povertyweed 
Puncture vine 
Purslane 
Rush 
Russian thistle 
Sagebrush 
Shepherdspurse 
Smartweed 
Sow thistle 
Stinkweed 
Sumac 
Sunflower 
Virginia creeper 
Water hyacinth 
Water lily 
Water primrose 
Wild garlic 
Wild lettuce 
Wild Onion 
Wild radish 
Willow 
Witchweed

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 9 
CROPS:
ASPARAGUS
 
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Postemergence 1.87 to 2.75 pts Apply in about 60 gals of water per acre for ground 
application and 12 gals per acre for air application. Apply on 
actively growing weeds, usually in April or May. If spears are 
present, treat immediately after cutting. Spears contacted by 
the spray may be malformed and off-flavored. If malformed, 
spears should be cut immediately and discarded. Post-
harvest spraying should be only by ground rig using drop 
nozzles to avoid spraying the fern. 
 
RESTRICTIONS AND LIMITATIONS FOR USE ON ASPARAGUS 
x Make no more than 2 applications during the harvest season per crop cycle.
x Applications must be spaced a minimum of 30 days between applications. 
x Make no more than a maximum of 2.75 pts product (2.0 lb ae) per acre per application. 
x The preharvest interval (PHI) is 3 days. 
CEREAL GRAINS NOT UNDERSEEDED WITH A LEGUME - BARLEY, MILLET, TRITICALE, WHEAT, RYE: 
 
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
 
Postemergence 
 Annual and biennial 
 Broadleaf weeds 
 
 Perennial broadleaf 
 weeds 
 
 
0.33 to 1.33 pints* 
 
 
0.66 to 1.33 pints* 
 
Apply after grain is well tillered (usually above 4 to 8 
inches high). Do not spray grain in the boot to dough 
stage. 
Emergency weed control in 
Triticale, Wheat 
Perennial broadleaf weeds 
1.75 pints Apply when weeds are approaching bud stage, after the 
grain dough stage. Do not spray during the boot to dough 
stage. Balance the severity of your weed problem 
against the possibility of crop damage. Where perennial 
weeds are scattered, spot treatment is suggested to 
minimize the extent of crop injury. 
*Use the lower rate if small annual and biennial weeds are the major problem. Use the higher rate if perennial weeds or 
annual and biennial weeds are present which are in the hard-to-kill categories as determined by local experience. The 
higher rates increase the risk of grain injury and should be used only where the wood control problem justifies the grain 
damage risk. Do not apply Weed Rhap® A-6D to grain in the seedling stage. 
 
RESTRICTIONS AND LIMITATIONS FOR USE ON CEREAL GRAINS NOT UNDERSEEDED WITH A LEGUME - 
BARLEY, MILLET, TRITICALE, WHEAT, RYE 
x For aerial application on grain, apply Weed Rhap® A-6D in 3 to 10 gallons of water per acre. 
x For ground application on grain, apply Weed Rhap® A-6D in 10 to 15 gallons of water per acre. 
x Do not permit dairy animals or meat animals being finished for slaughter to forage treated grain fields within 2 
weeks after treatment. 
x Do not feed treated straw to livestock if any emergency treatment as described above is applied. 
x Postemergence: 
o Limited to one application per crop cycle. 
o Maximum of 1.75 pints (28 fl. ounces) of product (1.23 lb ae) per acre per application. 
x Limited to 1.75 pints (28 fl. oz.) of product (1.23 lb ae) total per acre per crop cycle.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 10 
CEREAL GRAINS NOT UNDERSEEDED WITH A LEGUME - OATS 
Application Timing 
Amount of Weed 
RHAP® A-6D 
Per Acre 
Directions for Use 
Spring Planted Oats 0.33 pints 
 
 
 
Apply in sufficient water to give good coverage. Apply 
after the fully tillered stage, but before the boot to dough 
stage. 
NOTE: Oats are less tolerant to 2,4-D than wheat or 
barley and more likely to be injured. 
Fall Planted Oats 0.5 to 1 pint* 
 
Apply after full tillering but before early boot stage. 
Some difficult weeds may require the higher rate for 
maximum control, but injury may result. Do not spray 
during or immediately following cold weather. 
NOTE: Oats are less tolerance to 2,4-D than wheat or 
barley and more likely to be injured. 
Pre-Harvest 0.7 pint 
 
Apply with recommended amount of water per acre 
when grains are in the hard dough stage to control large 
weeds that may interfere with harvest. Best results will 
be obtained when soil moisture is sufficient to cause 
succulent weed growth. 
*If band treatment is used, base the dosage rate on the actual area sprayed. 
 
RESTRICTIONS AND LIMITATIONS FOR USE ON CEREAL GRAINS (Not Underseeded with a Legume) OATS: 
x The higher rates increase the risk of grain injury and should be used only where the weed control problem justifies 
the grain damage risk. 
x Apply Weed Rhap A-6D in sufficient water for adequate coverage. 
x Do not permit dairy animals or meat animals being finished for slaughter to forage treated grain fields within 2 
weeks after treatment. 
x For aerial application on grain, apply Weed Rhap® A-6D in 3 to 10 gallons of water per acre. 
x For ground application on grain, apply Weed Rhap® A-6D in 10 to 15 gallons of water per acre. 
 
x Postemergence: 
o Limited to one application per crop cycle. 
o Maximum of 1 pint (16 fl. ounces) of product (0.7 lb ae) per acre per application. 
x Preharvest: 
o Limited to one application per crop cycle. 
o Maximum of 0.7 pint (11.2 fl. ounces) of product (0.5 lb ae) per acre per application. 
o Preharvest interval (PHI) is 14 days. 
x Limited to 1.7 pints (27.2 fl. oz.) of product (1.73 lb ae) total per acre per crop cycle. 
 
 
CORN (Field and Pop) 
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Preplant 0.75 to 1.4 pints 
. 
To control emerged broadleaf weed seedlings or 
existing cover crops prior to planting corn, apply 7 to 14 
days before planting. Do not use on light, sandy soil, or 
where soil moisture is inadequate for normal weed 
growth. Use high rate for less susceptible weeds or 
cover crops such as alfalfa. 
 
Preemergence 1.4 pints 
 
Apply 3 to 5 days after planting but before corn 
emerges. Do not use on light, sandy soils or where soil 
moisture is low.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 11 
Postemergence: 
Annual broadleaf weeds 
 
Perennial broadleaf weeds 
 
0.5 to 0.7 pint 
 
 
 
 
 
 
Apply when weeds are small and corn is less than 8 
inches tall (to top of canopy). When corn is over 8 
inches tall, use drop nozzles and keep spray off foliage. 
Treat perennial weeds when they are in the bud to 
bloom stage. Do not spray corn in the tassel to dough 
stage. Corn treated with 2,4-D may become temporarily 
brittle. Winds or cultivation may cause stalk breakage 
during the period of time when the corn is brittle. 
RESTRICTIONS AND LIMITATIONS FOR USE ON CORN (Field and Pop): 
x Preharvest interval (PHI) is 7 days. 
x Do not use treated crop as fodder for 7 days following application. 
x Maximum of 2.1 pints of product (1.47 lb ae) per acre per crop cycle. 
x Preplant or preemergence: 
o Limited to one preplant or preemergence application per crop cycle. 
o Maximum of 1.4 pints (22.4 fl. ounces) of product (1.0 lb ae) per acre per application. 
x Postemergence: 
o Limited to one application per crop cycle. 
o Maximum of 0.7 pint (11.2 fl. ounces) of product (0.5 lb ae) per acre per application. 
CORN (Sweet) 
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Preplant 0.7 to 1.4 pints 
 
To control emerged broadleaf weed seedlings or 
existing cover crops prior to planting corn, apply 7 to 14 
days before planting. Do not use on light, sandy soil, or 
where soil moisture is inadequate for normal weed 
growth. Use high rate for less susceptible weeds or 
cover crops such as alfalfa. 
Preemergence 1.4 pints 
 
Apply 3 to 5 days after planting but before corn 
emerges. Do not use on light, sandy soils or where soil 
moisture is low. 
 
Postemergence: 
Annual broadleaf weeds 
Perennial broadleaf weeds 
0.5 to 0.7 pint 
 
 
 
 
Apply when weeds are small and corn is less than 8 
inches tall (to top of canopy). When corn is over 8 
inches tall, use drop nozzles and keep spray off foliage. 
Treat perennial weeds when they are in the bud to 
bloom stage. Do not spray corn in the tassel to dough 
stage. Corn treated with 2,4-D may become temporarily 
brittle. Winds or cultivation may cause stalk breakage 
during the period of time when the corn is brittle. 
 
RESTRICTIONS AND LIMITATIONS FOR USE ON CORN (Sweet) 
x Preharvest interval (PHI) is 45 days. 
x Do not use treated crop as fodder for 7 days following application. 
x Minimum of 21 days between applications. 
x Maximum of 2.1 pints of product (1.47 lb ae) per acre per crop cycle. 
 
x Preplant or preemergence: 
o Limited to one preplant or preemergence application per crop cycle. 
o Maximum of 1.4 pints (22.4 fl. ounces) of product (1.0 lb ae) per acre per application. 
x Postemergence: 
o Limited to one application per crop cycle. 
o Maximum of 0.7 pint (11.2 fl. ounces) of product (0.5 lb ae) per acre per application.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 12 
SORGHUM (Milo)
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Grain Sorghum (Milo); 
 
 4-10 inches 
 
 10 inches and above 
0.5 to 0.7 pint 
 
0.7 to 1.4 pints 
 
If sorghum if taller than 10 inches to top of the canopy, 
use drop nozzles and keep spray off the foliage. Do not 
treat during the boot, flowering or dough stage. Higher 
rates may be used to control some hard to control 
weeds. However, the chance of crop injury is increased 
with the higher rates. 
RESTRICTIONS AND LIMITATIONS FOR USE ON SORGHUM: 
x Preharvest interval (PHI) is 30 days. 
x Do not permit meat or dairy animals to consume treated crop as fodder or forage for 30 days following application. 
x Do not apply from flowering to dough stage. 
x Do not use with oil. 
x Use lower rates if conditions of high temperatures and high soil moisture exist. 
x Postemergence: 
o Limited to one application per crop cycle 
o Maximum of 1.4 pints (22 fl. oz.) of product (1 lb ae) per acre per application. 
POME FRUITS — APPLE AND PEAR ORCHARDS 
Non-Bearing trees (well established, one year or older) and Bearing trees before and after bloom 
Application Method 
Amount of 
Weed RHAP® A-6D 
Per Acre
Directions for Use
Band or spot treatment 1.87 pts Apply in 20 to 50 gals of water per acre of ground sprayed. 
For band or spot treatment calculate rates according to the 
actual portion of an acre treated. Apply as a directed spray 
onto the weeds to point of runoff when weeds are young and 
actively growing (pre-bud to early stage). 
RESTRICTIONS AND LIMITATIONS FOR USE ON POME FRUIT – APPLE AND PEAR ORCHARDS 
x The preharvest interval (PHI) is 14 days. 
x Do not cut orchard floor forage for hay within 7 days of application. 
x Use a maximum of 1.87 pints of product (1.3 lb ae) per acre per application. 
x Limited to 2 applications per crop cycle. 
x Observe a minimum of 75 days between applications.
RICE
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Preplant 1 – 1.4 pints Apply four or more weeks prior to planting rice. 
 DO NOT USE IN CALIFORNIA. 
Postemergence 1.5 to 2 pints Apply when ri ce is in the late tillering stage of 
development at the time of first joint development. Do 
not apply after panicle initiation, after rice internodes 
exceed one-half inch, at early seedling, early panicle, 
boot or heading stages. Consult local university or 
Agricultural Extension Service specialists for more 
specific information on rates and timing of application. 
 DO NOT USE IN CALIFORNIA.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 13 
RESTRICTIONS AND LIMITATIONS FOR USE ON RICE 
x Preharvest interval (PHI) is 60 days. 
x Do not apply more than a total of 2.125 pints (34 fl. ounces) of product (1.5 lb ae) per acre of Weed Rhap® A-6D 
to rice per crop cycle. 
x Preplant: 
o Limited to one application per crop cycle. 
o Maximum of 1.4 pints (22 fl. ounces) of product (1 lb ae) per acre per application. 
x Postemergence: 
o Limited to one application per crop cycle. 
o Maximum of 2 pts (32 fl. oz.) of product (1.4 lb ae) per acre per application. 
Apply Weed Rhap® A-6D in sufficient water to cover one acre when weeds are in active growth stage. Rice plants are 
sensitive to 2,4-D in early stages of growth; therefore, it is advisable to delay spraying until the second or third week after 
flooding. Water in the field should be shallow enough to permit direct application of the spray material to the weeds. Make 
all treatments well in advance of heading. 
 
 
RICE, WILD (For use in Minnesota only.) 
Application Timing 
 
Amount of 
Weed RHAP® A-6D 
Per Acre
Directions for Use 
Postemergence 
 
0.33 pints Apply Weed Rhap® A-6D in sufficient water to cover one 
acre when weeds are in active growth stage. Rice plants 
are sensitive to 2,4-D in early stages of growth; therefore, 
it is advisable to delay spraying until the second or third 
week after flooding. Water in the field should be shallow 
enough to permit direct application of the spray material to 
the weeds. Make all treatments well in advance of 
heading. 
 
RESTRICTIONS AND LIMITATIONS FOR USE ON WILD RICE (in Minnesota only) 
x For use in Minnesota only. 
x The preharvest interval (PHI) is 60 days. 
x Limited to 1 application per crop cycle. 
x Use a maximum of 0.33 pts (0.25 lb ae) of product per acre per application. 
 
 
STONE FRUIT AND NUT ORCHARDS (including pistachios): 
Application 
 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
For control of annual broadleaf 
weeds in the orchard floor 
1.33 pints Apply using coarse sprays and low pressure in sufficient 
volume of water to obtain thorough wetting of weeds. 
 
 
PRECAUTION AND RESTRICTIONS FOR STONE FRUIT AND NUT ORCHARDS 
Precautions in applying WEED RHAP A-6D in Stone Fruit and Nut Orchards 
x When applying Weed Rhap A-6D in orchards, apply only after irrigation and allow maximum time before the next 
irrigation. 
x Use a fixed-boom application which can be calibrated and will deposit the spray uniformly. 
x Apply precisely and uniformly to prevent damage to the trees and to obtain satisfactory weed control. 
x Application to bare ground may result in injury. 
x Trees must be at least 1 year old and in vigorous condition before application is made.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 14 
Restrictions for Stone Fruit and Nut Orchards 
 
x Do not apply around fruit trees with handgun. Use only flat, fan-typed nozzles and low pressure-20 to 30 lbs. 
x Do not apply during windy periods or extremely high temperatures. 
x Do not use on light, sandy soil. 
x Do not allow spray to drift or contact foliage, fruit, stems, trunk of trees, or exposed roots, as injury may result. 
x Do not apply during bloom. 
Stone Fruits Restrictions: 
x The preharvest interval (PHI) is 40 days. 
x Do not cut orchard floor forage or hay within 7 days of application. 
x Trees must be at least 1 year old and in vigorous condition before application is made. 
x Postemergence: 
o Limited to 2 applications per crop cycle. 
o Maximum of 1.33 pts of product (0.93 lb ae) per acre per application. 
o Observe a minimum of 75 days between applications. 
Pistachios and other Tree Nuts (except Filberts) Restrictions: 
x Do not cut orchard floor forage or hay within 7 days of application. 
x Trees must be at least 1 year old and in vigorous condition before application is made. 
x The preharvest interval (PHI) is 60 days. 
x Postemergence: 
o Limited to 2 applications per year. 
o Maximum of 1.33 pts of product (0.93 lb ae) per acre per application. 
o Observe a minimum of 30 days between applications. 
 
FILBERTS (Not for Use in California) 
Application 
 
Amount of 
Weed RHAP® A-6D 
Per Acre
Directions for Use 
Suckers 1 to 1.33 pints Apply in 100 gallons of water per acre. Use nozzles with 
large orifice nozzles and low tank pressure. Spray to the 
point of runoff when suckers are 6 to 9 inches tall. Apply 
when needed from April through August. 
 
Restrictions for use in Filberts: 
x The preharvest interval (PHI) is 45 days. 
x Do not use in California. 
x Wait a minimum of 30 days between applications. 
x Limited to 4 applications per year. 
x Maximum of 1.33 pts of product (0.93 lb ae) per 100 gallons of spray solution per application. 
 
STRAWBERRIES:
Application 
Amount of 
Weed RHAP® A-6D 
Per Acre
Directions for Use
Broadleaf Weeds in established 
strawberry plantings
1.2 to 2.0 pints Apply Weed Rhap A-6D in 25 to 50 gals of water per acre. 
Apply in early spring when strawberries are dormant or 
immediately after the last picking. Do not apply unless 
possible injury to the crop is acceptable. Follow 
recommendations of State Extension Weed or 
Horticultural Specialist in your area.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 15 
RESTRICTIONS FOR USE IN STRAWBERRIES 
x Do not apply in California or Florida. 
x Dormant or after last picking: 
o Limited to 1 application per crop cycle. 
o Maximum of 2 pints of product (1.4 lb ae) per acre per application. 
 
 
SUGARCANE: 
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Preemergence 2.25 to 2.85 pints Apply before canes appear for control of emerged 
broadleaf weeds. DO NOT USE IN CALIFORNIA. 
Postemergence 1 to 2.85 pints Apply after cane emerges and through lay-by. 
 DO NOT USE IN CALIFORNIA. 
RESTRICTIONS AND LIMITATIONS FOR USE IN SUGARCANE 
x Do not apply more than a total of 5.75 pints (92 fl. oz.) of product (4 lb ae) to sugarcane per acre per crop cycle. 
x Do not harvest cane prior to crop maturity. 
x Preemergence: 
o Limited to one application per crop cycle. 
o Maximum of 2.85 pts (45.6 fl. oz.) of product (2 lb ae) per acre per application. 
x Postemergence: 
o Limited to one application per crop cycle. 
o Maximum of 2.85 pts (45.6 fl. oz.) of product (2 lb ae) per acre per application. 
 
SUGARCANE - HAWAII ONLY 
Application Timing 
Amount of 
Weed RHAP® A-6D 
Per Acre
Directions for Use
Preemergence 0.66 to 2.66 pints 
per application
Apply before canes appear for control of emerged 
broadleaf weeds.
Postemergence 0.66 to 2.66 pints 
per application
Apply after cane emerges and through lay-by. 
RESTRICTIONS AND LIMITATIONS FOR USE IN SUGARCANE – HAWAII ONLY 
Do not harvest cane prior to crop maturity. 
Do not apply more than 5.32 pints of product (3.72 lb ae) per acre per year. 
Preemergence: 
x Limited to one application per crop cycle. 
x Do not exceed a maximum of 2.66 pts of product per acre (1.86 lbs ae) per application. 
Post emergence: 
x Do not exceed a maximum of 2.66 pts of [product per acre (1.86 lbs ae) per application. 
x Layby applications may be made, but crop damage may occur in some sugarcane cultivars. 
x Do not apply this product in a manner that allows spray to drift from the application target site and/or harm to 
humans, animals or other non-target sites. 
 
For the Islands of Maui and Kauai, the general wind restriction is raised to 20 MPH. When applying in winds in excess of 
15 MPH, the following requirements are in effect: 
Aerial Applications: Aerial applicators must: 
x No application shall be made within a distance of 1000 feet of sensitive areas such as Nature 
Preserves, Wildlife Refuges, Parks, Lakes, Reservoirs, Rivers, Streams, Non-irrigation Canals, 
Natural Ponds, Estuaries, Wetlands, Intertidal Areas, Ecologically Significant Grasslands, homes, public or private 
buildings, or fields with crops other than sugarcane whenever these sensitive areas are downwind from the spray

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 16 
areas and subject to possible spray drift. In instances where these sensitive areas are upwind from the spray 
area, the minimum restricted distance shall be 300 feet. 
Apply only as a coarse or coarser spray (ASABE standard 572 or a volume mean diameter of 385 microns). 
x Use a spray drift retardant and/or other measures known to control drift. 
Ground Broadcast Applications: For ground applications, applicators must: 
x Apply by ground boom with nozzle height no more than 2 feet above ground (pre-emergence) or crop canopy 
(post emergent broadcast) applications or, for directed sprays, no more than 1 foot above the ground, or 1.25 ft 
(15 inches) for better spray patterns without boom levelers on uneven terrain. 
x Apply only as a coarse or coarser spray (ASABE standard 572) or a volume mean diameter of 385 microns. 
x Use spray drift retardants and/or other measures known to control drift. 
Applications techniques to reduce off-site drift include, but are not limited to, the use of hooded or shielded sprayers 
or other means to reduce drift. 
THE FOLLOWING WEEDS ARE CONTROLLED WHEN SPRAYED IN ACCORDANCE WITH THE 
DIRECTIONS HEREON: 
Users should note that herbicide treatment of public waters requires a permit from appropriate state agencies in most 
states. Consult your State Fish and Game Agency before applying this product to public waters. 
ORNAMENTAL TURF: 
Intended for use by applicators who are authorized/licensed by the state for this type of application. 
Weeds in Crops Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Annual broadleaf weeds 1.5 to 2 pints 
 
Treat when weeds are young and actively growing. 
Perennial weeds should be near the bud stage, but 
not flowering at application. Do not use on susceptible 
southern grasses such as St. Augustine. Do not apply 
to newly seeded area until grass is well established. 
Bentgrass, clover, legumes, and dichondra may be 
injured by this treatment. 
Biennial and 
perennial broadleaf weeds 
1.75 to 2 pints 
RESTRICTIONS AND LIMITATIONS FOR USE ON ORNAMENTAL TURF AREAS (Golf courses, Cemeteries, Parks, 
Sports Fields, Turfgrass, and Lawns) 
x Postemergence (annual and perennial weeds): 
o Limited to 2 applications per year 
o Maximum of 2 pts (32 fl. oz.) of product (1.4 lb ae) per acre per application 
o Maximum seasonal rate is 4 pts (64 fl. oz.) of product (2.8 lb ae) per acre, excluding spot treatments. 
x Use sufficient spray volume for thorough and uniform coverage 
x Do not allow people (other than the applicator) or pets on treatment area during application. 
x Do not enter treatment areas until sprays have dried. 
 
 
TURF GROWN FOR SEED OR SOD: 
Weeds in Crops Amount of 
Weed RHAP® A-6D Per 
Acre 
Directions for Use 
Annual weeds (small seedling) 
 
½ to 0.75 pints Apply to established stands in spring from tiller to 
early boot stage. Do not spray in boot stage. New 
spring seedlings may be treated with the lower rate 
after grass seedlings have at least 5 leaves. Perennial 
weed regrowth may be treated in the fall. For best 
results apply when soil moisture is adequate for good 
growth. 
Biennial and perennial broadleaf 
weeds 
 
Perennial and hard to control 
broadleaf weeds 
1.75 to 2 pints 
 
 
 
2 to 2.75 pints

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 17 
RESTRICTIONS AND LIMITATIONS FOR USE ON TURF GROWN FOR SEED OR SOD 
x Limited to 2 applications per year 
x Maximum of 2.75 pts of product (1.93 lb ae) per application 
x Minimum of 21 days between applications 
 
FALLOW LAND: 
Weeds in Crops Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Annual broadleaf weeds 1.5 to 2.5 pints Use the lower rate when weeds are small (2 to 3 
inches tall, and actively growing). Use the higher rate 
on older and drought-stressed plants. 
Biennial broadleaf weeds 2 to 2.75 pints Spray when musk thistles or other biennial species 
are in the seedling to rosette stage and before flower 
stalks become apparent. The lower rate can be used 
in the spring during rosette stage. Use the highest rate 
in the fall or after flower stalks have developed. 
Perennial broadleaf weeds 2 to 2.75 pints Spray weed in the bud to bloom stage or while in good 
vegetative growth. Do not disturb treated areas for at 
least 2 weeks after treatment, or until tops are dead. 
Wild garlic and onion 
in crop stubble 
2 to 2.75 pints Apply to new regrowth of wild garlic or onion which 
occurs in the fall following harvest of small grains, 
cam or grain sorghum. 
RESTRICTIONS AND LIMITATIONS FOR USE ON FALLOWLAND (CROP STUBBLE ON IDLE LAND OR POST-
HARVEST TO CROPS OR BETWEEN CROPS) 
x Plant only labeled crops within 29 days after application 
x Limited to 2 applications per year 
x Maximum of 2.75 pts of product (1.93 lb ae) per acre per application 
x Minimum of 30 days between applications. 
 
ESTABLISHED PASTURES AND RANGELANDS: 
Weeds in Crops Amount of 
Weed RHAP® A-6D 
Per Acre 
Directions for Use 
Annual broadleaf weeds 
 
Biennial and perennial broadleaf 
weeds 
1.33 pints 
 
1.33 to 2.7 pints 
 
Apply when weeds are small and actively growing and 
prior to bud stage. Spray while musk thistles or other 
biennial species are in the seedling to rosette stage 
and before flower stalks become apparent. The lower 
rate can be used in the spring during rosette stage. 
Use the highest rate in the fall or after flower stalks 
have developed. Do not apply to new areas until grass 
is well established. Do not apply to grass in the early 
boot through milk stage if grass seed production is 
desired. Bentgrass and legumes may be injured by 
this treatment. 
 
RESTRICTIONS AND LIMITATIONS FOR USE ON PASTURES AND RANGELANDS 
x Do not cut forage for hay within 7 days of application. 
x Postemergence: 
o For susceptible annual and biennial broadleaf weeds use 1.33 pts (21.3 fl. oz.) of product (0.93 lb ae) per 
acre per application. 
o For moderately susceptible biennial and perennial broadleaf weeds: Use 1.33 pts to 2.7 pts (21.3 to 43.2 
fl. oz.) of product (0.93 to 1.9 lb ae) per acre per application. 
o For difficult to control weeds and woody plants use 2.7 pts (43.2 fl. oz.) of product (1.9 lb ae) per acre per 
application. 
o Spot treatment: Use 2.7 pts (43.2 fl. oz.) of product (1.9 lb ae) per acre. 
x Maximum of 2 applications per year

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 18 
x Maximum of 5.4 pts (86.4 fl. oz.) of product (3.78 lb ae) per acre per year 
x Minimum of 30 days between applications 
x If grass is to be cut for hay, Agricultural Use Requirements under the Worker Protection Standard are applicable. 
 
NON-CROPLAND SITES (Airfields, roadsides, vacant lots, drainage ditch banks, fence rows, industrial sites and similar 
areas)
ANNUAL AND PERENNIAL BROADLEAF WEEDS: Use 1.3 to 4 pints of Weed Rhap® A-6D per acre. Usually 2.66 
pints per acre will give adequate control. Do not use on herbaceous ground covers or creeping grass such as Bentgrass. 
Legumes will usually be damaged or killed. Deep-rooted perennials may require repeat applications. Do not use on freshly 
seeded turf until grass is well established. Delay reseeding for 3 months or until 2,4-D has disappeared from soil. 
 
WOODY PLANT CONTROL: To control woody plants susceptible to 2,4-D, such as alder, buckbrush, elderberry, sumac, 
and willow on non-crop areas, use 2.66 to 4 pints of Weed Rhap® A-6D per acre in 100 gallons of water. Wet all parts of 
the plants thoroughly, including stem and foliage, to the point of run off. Higher volumes of up to 400 gallons per acre are 
necessary where the brush is very dense and over 6 to 8 feet high. Applications are more effective when made on actively 
growing plants. Treatment should not be made during time of severe drought or in early Fall when leaves lose their green 
color. Hard to control species may require re-treatment next season. 
TREE INJECTION: For the control of unwanted hardwoods such as elm, oak, hickory, and sweetgum in forest and other 
non-crop areas, apply undiluted Weed Rhap® A-6D by injecting 2/3 ml through the bark, using one injection per inch of 
trunk diameter measured at breast height (4 1/2 feet). For harder to control species (ash, maple, dogwood), use 1-1/3 ml 
of undiluted Weed Rhap® A-6D per injection. All injections should be as near the root collar as possible and should be 
evenly spaced around the trunk. Injections may be made at any time of the year but are most effective during the growing 
season. Maples should not be treated during the spring sap rise. 
RESTRICTIONS AND LIMITATIONS FOR NONCROPLAND SITES INCLUDING ANNUAL AND PERENNIAL 
BROADLEAF WEEDS CONTROL, WOOD PLANT CONTROL AND TREE INJECTION 
x Postemergence (annual and perennial weeds): 
o Limited to 2 applications per year 
o Maximum of 2.75 pints (1.92 lb ae) per acre per application 
o Minimum of 30 days between applications 
x Postemergence (woody plants): 
o Limited to 1 application per year 
o Maximum of 4.0 pints (2.8 lb ae) per acre per application 
o Applications to non-cropland areas are not applicable to treatment of commercial timber or other plants 
being grown for sale or other commercial use, or for commercial seed production, or for research 
purposes. 
AQUATIC APPLICATIONS 
WEEDS AND BRUSH ON IRRIGATION CANAL DITCHBANKS – For use in the following seventeen western states: 
Arizona, California, Colorado, Idaho, Kansas, Montana, Nebraska, New Mexico, Nevada, North Dakota, Oklahoma, 
Oregon, South Dakota, Texas, Utah, Washington, Wyoming. 
 
For control of annual and perennial broadleaf weeds, apply 1.33 to 2.66 pints of Weed Rhap® A-6D per acre in 
approximately 20 to 100 gallons of total spray. Treat when weeds are young and actively growing before the bud or early 
bloom stage. For harder to control weeds, a repeat spray may be needed after 3 to 4 weeks for maximum results, using 
the same rates. 
 
Apply no more than 2 treatments per season. For woody brush and patches of perennial broadleaf weeds, mix 5.33 pints 
of Weed Rhap® A-6D in 150 gallons of water. Wet foliage thoroughly, using approximately 1 gallon of spray solution per 
square rod. 
 
SPRAYING INSTRUCTIONS: Low pressure (10 to 40 psi) power spray equipment should be used and mounted on a 
truck, tractor, or boat. Apply while traveling upstream to avoid accidental concentration of chemical into water. Spray when 
the air is calm, 5 mph or less. Do not use on small canals (less than 10 CFS) where water will be used for drinking 
purposes.

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 19 
Boom spraying onto water surface must be held to a minimum and no cross-stream spraying to opposite banks should be 
permitted. When spraying shoreline weeds, allow no more than 2-foot overspray onto water with an average of less than 
one-foot overspray to prevent introduction of greater than negligible amounts of chemical into the water. 
 
Do not allow dairy animals to graze on treated areas for at least 7 days after spraying. Water within treated banks should 
not be fished. 
For Aquatic Weeds in Lakes, Ponds, Drainage Ditches, and Marshes: Use 1-2/3 to 3 pints of Weed Rhap® A-6D in 
50 to 100 gallons of water per acre. Spray to wet foliage thoroughly. Application should be made when leaves are fully 
developed above waterline and plants are actively growing. Your State Conservation Department or Game and Fish 
Commission will assist you in determining the best time and rate for application under local conditions. 
RESTRICTIONS AND LIMITATIONS FOR FLOATING AND EMERGENT WEEDS 
x Maximum of 5.7 pints/surface acre per application 
x Limited to 2 applications per season 
x Minimum of 21 days between applications 
x Spot treatments are permitted. 
x Apply to emergent aquatic weeds in ponds, lakes, reservoirs, marshes, bayous, drainage ditches, non-irrigation 
canals, rivers, and streams that are quiescent or slow moving. 
x Coordination and approval of local and state authorities may be required, either by letter of agreement or 
issuance of special permits for aquatic applications. 
 
Water Use 
1. Water for irrigation or sprays: 
A. If treated water is intended to be used only for crops or non-crop areas that are labeled for direct treatment of 2,4-
D such as pastures, turf, or cereal grains, the treated water may be used to irrigate and/or mix sprays for these 
sites at anytime after the 2,4-D aquatic application. 
B. Due to potential phytoxicity considerations, the following restrictions are applicable: If treated water is intended to 
be used to irrigate or mix sprays for plants grown in commercial nurseries and greenhouses; and other plants or 
cops that are not labeled for direct treatment with 2,4-D, the water must not be used unless one of the following 
restrictions has been observed: 
a. A setback distance from functional water intake(s) of greater than or equal to 600 feet was used for the 
application, or 
b. A waiting period of 7 days from the time of application has elapsed, or, 
c. An approved assay indicates that the 2,4-D concentration is 100 ppb (0.1 ppm) or less at the water 
intake. Wait at least 3 days after application before initial sampling at water intake. 
2. Drinking water (potable water); 
A. Consult with appropriate state or local water authorities before applying this product to public waters. State or 
local agencies may require permits. The potable water use restrictions on this label are to ensure that 
consumption of water by the public is allowed only when the concentration of 2,4-D in the water is less than 
the MCL (Maximum Contaminant Level) of 70 ppb. Applicators should consider the unique characteristics of 
the treated waters to assure that 2,4-D concentrations in potable water do not exceed 70 ppb at the time of 
consumption. 
B. For floating and emergent weed applications, the drinking water setback distance from functioning potable 
water intakes is great than or equal to 600 ft. 
C. If no setback distance of greater than or equal to 600 ft. is used for application, applicators or the authorizing 
organization must provide a drinking water notification prior to a 2,4-D application to the party responsible for 
public water supply or to individual private water uses. Notification to the party responsible for a public water 
supply or to individual private water users must be done in a manner to assure that the party is aware of the 
water use restrictions when this product is applied to potable water. 
The following is an example of a notification via posting, but other methods of notification which convey the 
above restrictions may be used and may be required in some cases under state or local law or as a condition 
of a permit. 
 
Example: 
Posting notification should be located every 250 feet including the shoreline of the treated area and up to 250 
feet of shoreline past the application site to include immediate public access points. Posting must include the 
day and time of application. Posting may be removed if analysis of a sample collected at the intake 3 or more

Filename: Weed Rhap A-6D Herbicide (5905-503) 071318 CLN.doc 20 
days following application shows that the concentration in the water is less than 70 ppb (100 ppb for irrigation 
or sprays), or after 7 days following application, whichever occurs first. 
 
Text of notification: Wait 7 days before diverting functioning surface water intakes form the treated aquatic 
site to use as drinking water, irrigation, or sprays, unless water at functioning drinking water intakes is tested 
at least 3 days after application and is demonstrated by assay to contain not more than 70 ppb 2,4-D (100 
ppb for irrigation or sprays). Application Date: ____________ Time: ___________ 
 
D. Following each application of this product, treated water must not be used for drinking water unless one of 
the following restrictions has been observed: 
 
i. A setback distance from functional water intake(s) of greater than or equal to 600 ft. was used 
for the application, or, 
ii. A waiting period of at least 7 days from the time of application has elapsed, or 
iii. An approved assay indicates that the 2,4-D concentration is 70 ppb (0.07 ppm) or less at the 
water intake. Sampling for drinking water analysis should occur no sooner than 3 days after 
2,4-D application. Analysis of samples must be completed by a laboratory that is certified 
under the Safe Drinking Water Act to perform drinking water analysis using a currently 
approved version of analytical Method Number 515, 555, or other methods for 2,4-D as may be 
listed in Title 40 CFR, Part 141.24, or Method Number 4015 (immunoassay of 2,4-D) from U.S. 
EPA Test Methods for Evaluating Solid Waste SW-846. 
iv. Note: Existing potable water intakes that are no longer in use, such as those replaced by a 
connection to a municipal water system or a potable water well, are not considered to be 
functioning potable water intakes. 
v. Drinking water setback distances do not apply to terrestrial applications of 2,4-D adjacent to 
water bodies with potable water intakes. 
3. Except as stated above, there are no restrictions on using water from treated areas for swimming, fishing, watering 
livestock, or domestic purposes. 
 
Do not contaminate water used for irrigation or domestic purposes. 
Perennial and other hard to control weeds may require a repeat application to give adequate control. 
CONDITIONS OF SALE - LIMITED WARRANTY 
AND LIMITATIONS OF LIABILITY AND REMEDIES 
Read the Conditions of Sale - Warranty and Limitations of Liability and Remedies before using this product. If 
the terms are not acceptable, return the product, unopened, and the full purchase price will be refunded. 
 
The directions on this label are believed to be reliable and should be followed carefully. Insufficient control of pests and/or 
injury to the crop to which the product is applied may result from the occurrence of extraordinary or unusual weather 
conditions or the failure to follow the label directions or good application practices, all of which are beyond the control of 
Helena Agri-Enterprises, LLC (the "Company") or seller. In addition, failure to follow label directions may cause injury to 
crops, animals, man or the environment. The Company warrants that this product conforms to the chemical description 
on the label and is reasonably fit for the purpose referred to in the directions for use subject to the factors noted above 
which are beyond the control of the Company. To the extent consistent with applicable law, the Company makes no other 
warranties or representations of any kind express or implied, concerning the product, including no implied warranty of 
merchantability or fitness for any particular purpose, and no such warranty shall be implied by law. 
 
To the extent consistent with applicable law, the exclusive remedy against the Company for any cause of action relating to 
the handling or use of this product shall be limited to, at Helena Agri-Enterprises, LLC’s election, one of the following: 
 
1. Refund of the purchase price paid by buyer or user for product bought, or 
2. Replacement of the product used 
 
To the extent allowed by law, the Company shall not be liable and any and all claims against the Company are waived for 
special, indirect, incidental, or consequential damages or expense of any nature, including, but not limited to, loss of 
profits or income. The Company and the seller offer this product and the buyer and user accept it, subject to the foregoing 
conditions of sale and limitation of warranty, liability and remedies. 
 
© Copyright Helena Holding Company, 2018. 
WEED RHAP® is a registered trademark of Helena Holding Company.