crop-chem-docs/corpus/epa_ppls/5905-501.md

# WEED RHAP A-4D

- EPA Reg No: **5905-501**
- Registrant: HELENA AGRI-ENTERPRISES, LLC, D/B/A HELENA CHEMICAL COMP
- Signal word: Danger
- Active ingredients: 2,4-D, dimethylamine salt (46.7%)
- Label accepted: 2017-09-19
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/005905-00501-20170919.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
September 19, 2017

Bill Washburn
Registration Manager
Helena Products Group
Helena Chemical Company
7664 Smythe Farm Road
Memphis, TN 38120

Subject: Label Amendment – Add uses on asparagus, blueberries, cranberries, grape
vineyards, fresh market red potatoes, wild rice in MN, strawberries, bioenergy
grass and tree crops
 Product Name: Weed Rhap A-4D
 EPA Registration Number: 5905-501
 Application Date: July 10, 2017
 Decision Number: 531484

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. 5905-501
Decision No. 531484

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-4D (5905-501) 091517 STK.doc 1
GROUP 4 HERBICIDE
WEED RHAP A-4D
2, 4-D AMINE HERBICIDE
 ACTIVE INGREDIENT: BY WT.
 Dimethylamine Salt of 2, 4-Dichlorophenoxyacetic Acid .......... 46.7%
 OTHER INGREDIENTS: … ...............………................ 53.3%
TOTAL …………….................................. 100.0%
 Equivalent to 38.8% of 2, 4-Dichlorophenoxyacetic acid or 3.8 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 the 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 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 person sip a glass of water if able to swallow.
x Do not give anything by mouth to an unconscious person.
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 INHALED: x Move victim to fresh air.
x If not breathing, call 911 or an ambulance, then give artificial respiration, preferably
mouth-to-mouth if possible.
HOTLINE NUMBER
Have the product container or label with you when calling a poison control center or doctor, or going for treatment. For
emergency assistance call toll-free, 1-800-424-9300 (Chemtrec).
Note to Physician: Probable mucosal damage may contraindicate the use of gastric lavage.
SEE INSIDE PANEL FOR ADDITIONAL PRECAUTIONARY STATEMENTS
U. S. Patent #5,877,112 AD 052914
EPA REG. NO. 5905-501 NET CONTENTS:
EPA EST. NO. 42750-MO-001
MANUFACTURED FOR
HELENA CHEMICAL COMPANY
225 SCHILLING BOULEVARD, SUITE 300
COLLIERVILLE TENNESSEE 38017
09/19/2017
5905-501

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 2
PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
DANGER
Corrosive. Causes irreversible eye damage. Harmful if swallowed or absorbed through skin. Do not get in eyes or on
clothing. Avoid contact with skin. Prolonged or frequently repeated skin contact may cause allergic reactions in some
individuals.
PERSONAL PROTECTIVE EQUIPMENT (PPE)

All mixers, loaders, applicators, flaggers, and other handlers must wear:
x long-sleeved shirt and long pants,
x shoes and socks,
x chemical resistant gloves made of Barrier Laminate, Nitrile Rubber  14 mils, Neoprene Rubber  14 mils, or Viton
14 mils
x protective eyewear
x Chemical resistant apron when applying postharvest dips or sprays to citrus, mixing or loading, cleaning up spills or
equipment, or otherwise exposed to the concentrate

See engineering controls for additional requirements.

USER SAFETY REQUIREMENTS
Follow manufacturer's instructions for cleaning/maintaining PPE. If no such instructions for washables exist, use
detergent and hot water. Keep and wash PPE separately from other laundry.

Engineering Controls:
Pilots must use an enclosed cockpit that meets the requirements listed in the WPS for agricultural pesticides [40 CFR
170.240(d)(6)].

USER SAFETY RECOMMENDATIONS
Users should wash hands before eating, drinking, chewing gum, using tobacco, or using the toilet.

Users should remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing.
If pesticide gets on skin, wash immediately with soap and water.

Users should 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, to areas
where surface water is present, or to intertidal areas below the mean high water mark except as permitted by this label.
Drift and runoff may be hazardous to aquatic organisms in water adjacent to treated areas. Do not contaminate water
when disposing of equipment wash waters 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.

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 bands to allow fish to move into untreated areas. Waters having limited and less dense weed infestations
may not require partial treatments.


GROUNDWATER CONTAMINATION

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 3
Most cases of groundwater contamination involving phenoxy herbicides such as 2, 4-D has 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.
PHYSICAL OR CHEMICAL HAZARDS
Combustible. Do not use, pour, spill or store near heat or open flame.
DIRECTIONS FOR USE
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling. 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.
Use of this product in certain portions of California, Oregon, and Washington is subject to the January 22, 2004 Order of
injunctive relief in Washington Toxics Coalition, et. al. v. EP, C01-0132C, (W.D. WA). For further information, please refer
to http://www.epa.gov/espp/wtc.
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 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.

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:
 Coveralls
 Waterproof gloves
 Shoes plus socks
 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.
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, air blast, and 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
S-572.1) 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 S-572.1) or a volume mean diameter of 300 microns or
greater for spinning atomizer nozzles.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 4
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) within 250 feet 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 include, 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 application 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 feet 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.

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.

2, 4-D amines may volatilize during conditions of low humidity and high temperatures. Do not apply during conditions of
low humidity and high temperatures.

CHEMIGATION PROHIBITION
Do not apply this product through any type of irrigation system.
STORAGE AND DISPOSAL
Do not contaminate water, food, or feed by storage or disposal.

PESTICIDE STORAGE
Protect from freezing. If stored below 32oF and crystals form, warm to 72oF for 24 hours, periodically rolling drum to
reconstitute.

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 :

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 5
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. If burned, stay out of smoke.
NONREFILLABLE PLASTIC CONTAINER (GREATER THAN 5 GALLONS): Do not reuse or refill this container. 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. Offer for recycling, if available, or puncture
and dispose of in a sanitary landfill, or incineration if allowed by state and local authorities. 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.
PRODUCT INFORMATION
Performance of this product may be affected by local condition, 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. For perennial
weeds and conditions such as the very dry areas of the western states, where control is difficult, Use the higher rates as
shown in the “CROP SPECIFIC USE DIRECTIONS” below.

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.
Application rates should be 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 per acre. For crop uses, do not mix with oil, surfactants, or other
adjuvants unless specifically listed on label. To do so may reduce herbicides selectivity and could result in crop damage.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 6

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. This
product contains the Dimethylamine salt 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.

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, it may be necessary to warm product to 70oF and agitate before using. This does not affect the
efficiency of the product.

Spray equipment used to apply 2, 4-D should not be used for any other purpose until thoroughly cleaned with suitable
chemical cleaner containing ammonia.

Spray Preparation: Add the listed amount of WEED RHAP A-4D to approximately one-half the volume of water to be
used for spraying. Agitate well, and then add the remainder of the water. Continue agitation during application until spray
tank is empty.
Use in Liquid Nitrogen Fertilizer: WEED RHAP A-4D may be combined with liquid nitrogen fertilizer suitable for foliar
application of corn, grass, pastures, or small grains in one operation. Use WEED RHAP A-4D according to directions on
this label for those crops. Use liquid nitrogen fertilizer at rates approved by supplier or extension service specialist. Mix
the product and fertilizer according to the following instructions:

Fill the spray tank approximately ½ full with the liquid nitrogen fertilizer. In a separate container, mix the amount of WEED
RHAP A-4D to be used with an equal amount of water. Add Weed Rhap A-4D mixture to the spray tank while agitating.
Add the remainder of the 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 product with an equal amount of water is important.
WHERE TO USE
This product is used to control broadleaf weeds in Apples, Pears, Stone Fruits, Nut Orchards, Filberts, Asparagus,
Blueberries, Cereal Grains, Corn, Sorghum, Cranberries, Grape Vineyards, Hops, Potatoes (Red), Rice, Wild Rice,
Soybeans, Strawberries, Sugarcane, weeds and brush in CRP Areas, Established Grass Pastures, Rangeland,
Fallowland, Turf Applications, , Forestry Uses, Bioenergy Crops, rights-of-way, and similar noncrop uses, tree injection,
and for aquatic weed control.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 7
WEEDS CONTROLLED
ALDERS
ALLIGATOR WEED
AMERICAN LOTUS
ARROWHEAD
ASTER
ARTICHOKE
AUSTRIAN FIELDCRESS
*BEGGARTICKS
BIDEN
*BINDWEED
BITTERSWEET
BITTERWEED
BITTER WINTERCRESS
BLACKEYED SUSAN
BLESSED THISTLE
BLUE LETTUCE
BOX ELDER
BROOMWEED
BUCKHORN
BULLTHISTLE
BULRUSH
BURDOCK
BUR RAGWEED
BUTTERCUP
*CANADA THISTLE
CARPETWEED
CATNIP
CHICKWEED
CHICKORY
CINQUEFOIL
COCKLE
COCKLEBUR
COFFEEBEAN
COFFEEWEED
CREEPING JENNY
CROTON
CURLY INDIGO
DANDELION
DEVIL'S CLAW (Proboscidea louisianica)
*DOCKS
*DOGBANE
DUCKWEED
ELDERBERRY
FLEABANE
FIXWEED
FLORIDA PUSLEY
FRENCHWEED
GALINSOGA
GOATSBEARD
*GOLDENROD
GOOSEFOOT
GUMWEED
*GROUND IVY
HEALALL
HEMP
HENBIT
*HOARY CRESS
HORSETAIL
HONEYSUCKLE
INDIGO
INDIAN MALLOW
*IRONWEED
JERUSALEM ARTICHOKE
JEWELWEED
JIMSONWEED
*KNOTWEED
LAMBSQUARTERS
LOCOWEED
LUPINES
*MALLOW
MARIJUANA
MARSHELDER
MEXICAN WEED
MORNINGGLORY
***MUSKTHISTLE
MUSTARDS
*NETTLES
NUTGRASS
*ORANGE HAWKWEED
PARROT FEATHER
PARSNIP
PENNYCRESS
PENNYWORT
PEPPERGRASS
PEPPERWEED
PIGWEEDS
PLANTAINS
POISON HEMLOCK
POISON IVY
POKEWEED
POORJOE
POVERTYWEED
PRICKLY LETTUCE
PRIMROSE
PUNCTURE VINE
PURSLANE
RADISH
RAGWEED
RUSH
*RUSSIAN THISTLE
SAGEBRUSH
SALSIFY
*SALT CEDAR (T. ramosissima)
SHEPHERDSPURSE
SICKLEPOD
*SMARTWEEDS
SNEEZEWEED
SOUTHERN WILD ROSE
SOW THISTLE
SPANISH NEEDLES
SPATTERDOCK
ST. JOHNSWORT
STINGING NETTLES
STINKWEED
SUMAC
SUNFLOWER
SWEET CLOVER
TANWEED
TARWEED
THISTLES
TOADFLAX
TUMBLEWEED
VELVETLEAF
VENICEMALLOW
*VERVAINS
VETCHES
VIRGINIA CREEPER
WATER HYACINTH
WATER LILY
WATER PLANTAIN
WATER PRIMROSE
WATER SHIELD
WILD CARROT
*WILD GARLIC
WILD LETTUCE
*WILD ONION
WILD PARSNIP
WILD RADISH
WILD RAPE
WILD STRAWBERRY
WILD SWEET POTATO
WILLOW
WITCHWEED
WOODWORM
WORMSEED
YELLOW ROCKET
*These species may require repeated applications and/or use of the higher rate listed on this product label even under ideal conditions.
**Control of pigweeds in the High Plains area of Texas and Oklahoma may not be satisfactory with this product.
***Not registered for control of muskthistle in CA.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 8
PLANTING IN TREATED AREAS
Labeled Crops: Within 29 days following an application of this product, plant only those crops named as use sites on this
or other registered 2,4-D labels. Follow more specific limitations, if any, provided in the directions for individual crops.
Labeled crops may be at risk for crop injury or loss when planted soon after application, especially in the first 14 days.
Degradation factors described below should be considered in weighing this risk.

Other Crops: All other crops may be planted 30 or more days following an application without concern for illegal residues
in the planted crop. However, under certain conditions, there may be a risk of injury to susceptible crops. Degradation
factors described below should be considered in weighing this risk. Under normal conditions, any crop may be planted
without risk of injury if at least 90 days of soil temperatures above freezing have elapsed since application.
PLANTBACK RESTRICTIONS
Crop Corn Sorghum Small
Grains
Soybeans All Other
Crops
Days Following Last Application 7 – 14 29 29 15*
30**
30***
* Maximum of 3.8 ounces (0.5 lb a.e.) / acre per preplant application
** Maximum of 7.6 ounces (1 lb a.e.) /acre per preplant application
*** 30 days for residue tolerance, under normal conditions any crop may be planted without risk of injury after 90
days.
Degradation Factors: When planting into treated areas, the risk of crop injury is less if lower rates of product were
applied and conditions following application have included warm, moist soil conditions that favor rapid degradation of 2,4-
D. Risk is greater if higher rates of product were applied and soil temperatures have been cold and/or soils have been
excessively wet or dry in the days following application. Consult your local Agricultural Extension Service for information
about susceptible crops and typical soil conditions in your area.
CROP SPECIFIC USE DIRECTIONS
 APPLES, PEARS, STONE FRUIT AND NUT ORCHARDS
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual Broadleaf Weeds 3 pints For control of weeds on the orchard floor, apply using
coarse sprays and low pressure in sufficient volume of
water to obtain thorough wetting of weeds. Treat when
weeds are small and actively growing. Do not use on
light, sandy soil. DO NOT USE IN CALIFORNIA.

RESTRICTIONS AND LIMITATIONS FOR USE IN APPLES, PEARS, STONE FRUIT AND NUT ORCHARDS
x Do not apply to bare ground as Injury may result.
x Do not apply immediately before irrigation and withhold irrigation for 2 days before and for 3 days after treatment.
x Do not allow spray to drift onto or contact foliage, fruit stems, and trunks of trees or exposed roots as injury may
result.
x Do not apply to newly established or young orchards. Trees must be at least 1 year old and in vigorous condition.
x Do not apply during bloom.
x Do not cut orchard floor forage for harvest within 7 days of application.
x Do not make more than 2 applications per year.
x Do not harvest stone fruit within 40 days of application.
x Do not harvest nuts within 60 days of application.
x Do not harvest apples or pears within 14 days of application.
x For apples and pears, and stone fruits, allow at least 75 days between applications.
x For Tree Nuts, allow at least 30 days between applications.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 9
FILBERTS
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Sucker Control 1-1/2 to 2 pints Apply in 100 gallons of water per acre. Spray to run-off
when suckers are 6 to 9 inches tall. Spray when
needed, from April through August. Use large orifice
nozzles and low tank pressure (20 to 30 psi) to
produce large droplet size.

RESTRICTIONS AND LIMITATIONS: FILBERTS
x Preharvest Interval ( PHI) 45 days
x Minimum of 30 days between applications
x Limited to 4 applications per year
x Maximum 33 ounces per 100 gallons of spray solution per application
ASPARAGUS
APPLICATION TIMING AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
Annual, biennial and perennial
broadleaf weeds
3 to 4 pints Apply in the spring on actively growing weeds.
Ground Application: Apply in 50 to 60 gallons of water per
acre.
Aerial Application: Apply in 12 gallons of water per acre.
Post-harvest spraying should be only by ground application
using drop nozzles to avoid spraying the fern.
If asparagus spears are present, treat immediately after
cutting.
Spears contacted by the spray may be malformed and off-
flavored. If spears are malformed by spray, cut immediately
and discard.
RESTRICTIONS AND LIMITATIONS FOR ASPARAGUS
x Limited to two applications per crop cycle.
x Maximum of 4 pints (2.0 lb. ae) per acre per application.
x Minimum of 30 days between applications.
x (PHI) Do not harvest within 30 days of application.
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed combined total of 4.0 pounds of a.e. per acre per year.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 10
BLUEBERRIES
High Bush Berries (Vegetative Strips between Rows)
For use only in the states of MA, NJ, OR, WA and WI
APPLICATION
TIMING
AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
First Application –
Spring.

If necessary,
second application
- After Harvest.
3.0 pints High Bush Berries (Vegetative Strips between Rows)
Broadleaf weeds (Broadleaf dock, Canada thistle, Dandelion,
Spotted catsear)
Apply 3 pints of Weedar 64 in 50 gallons of water per acre using ground
equipment only.
The first application should be made in the spring as a direct, shielded
spray to the vegetative strip between blueberry rows, avoiding contact
with the blueberry plant foliage.
If necessary, a second application of Weedar 64 at 3 pints in 50 gallons
of water per acre may be made after harvest to control regrowth of
broadleaf weeds.
RESTRICTIONS FOR USE ON BLUEBERRIES
x The pre-harvest interval (PHI) is 30 days.
x Limited to 2 application per year.
x Do not exceed 3.0 pints (1.4 lbs ae) per acre per application.
x Do not exceed 6.0 pints (2.8 lbs ae) per acre per year.
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed a combined total of 2.8 pounds of a.e. per acre per year.
x Do not apply through any type of irrigation system.
x Do not apply by aerial application.
x Do not apply in or near greenhouses.
x Do not apply if the temperature is 65 degrees or higher, to avoid injury to blueberry plants.
x Do not allow pesticide to drip or touch blueberry plants in the growing or dormant period. Plants
contacted by this product may be killed or suffer significant injury resulting in grade or yield loss.
PRECAUTIONS FOR USE ON BLUEBERRIES
x INJURY TO CROPS FROM THIS HERBICIDE MAY OCCUR. IF YOU ARE NOT PREPARED TO ACCEPT
SOME DEGREE OF CROP INJURY DO NOT USE THIS PRODUCT ON BLUEBERRIES.
x For optimum herbicide performance, mowing between rows for at least 7 days before or after the application is
not advised.
x Soil residue of this product may temporarily inhibit seed germination and plant growth.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 11
CEREAL GRAINS
Barley, Millet, Rye, Triticale, Wheat
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Not underseeded with
legumes Postemergence
 Annual and biennial
 broadleaf weeds

 Perennial broadleaf
 weeds


1/2 to 2 pints*


1 to 2 pints*
Apply after grain is well tillered (usually about 4 to 8
inches high). Do not spray grain In the boot to dough
stage.

Underseeded with legumes

1-1/4 to 1/2 pints*

Apply after grain is 8 inches tall. Do not spray grain in
boot to dough stage. Do not spray alfalfa or sweet
clover unless the infestation is severe and injury to
these legumes can be tolerated.


Emergency weed control in
Triticale, Wheat
Perennial broadleaf weeds

2.5 pints

Apply when weeds are approaching bud stage, after
the grain dough stage. Do not spray during the boot to
dough stage. The 3 pints per acre application can
produce injury to wheat. 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 weed control problem justifies the grain
damage risk. Do not apply WEED RHAP A-4D to grain in the seedling stage.

RESTRICTIONS AND LIMITATIONS FOR USE ON CEREAL GRAINS
x For aerial application on grain, apply WEED RHAP A-4D in 3 to 10 gallons of water per acre.
x For ground application apply product in a minimum of 10 gallons of water per acre for proper spray 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 Do not feed treated straw to livestock if an emergency treatment as described above is applied.
x Postemergence:
o Limited to one application per crop cycle.
o Maximum of 42 ounces per acre per application.
x Preharvest:
o Limited to one application to crop cycle.
o Maximum of 16 ounces per acre per application
x Preharvest interval (PHI) is 14 days.
x Limited to 58 ounces per acre per crop cycle

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 12
CEREAL GRAINS (Not Underseeded with a Legume) Oats
WEEDS IN CROPS AMOUNT OF WEED
RHAP A-4D PER
ACRE*
(Average Conditions)
USE DIRECTIONS
Spring Planted Oats 1/2 to 2 pints*

Apply in sufficient water to give good coverage. Apply after the fully
tillered stage, except during 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

1 to 1-1/2 pints Apply after full tillering but before early boot stage. Some difficult
weeds may require higher rates of 1/2 to 5/6 pints per acre for
maximum control, but injury may result. Do not spray during or
immediately following cold weather. Note: Oats are less tolerant to
2,4-D than wheat or barley and more likely to be injured.
Pre-Harvest 1 pint Apply with listed 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-4D 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 Do not feed treated straw to livestock.
x Postemergence:
o Limited to one application per crop cycle.
o Maximum of 42 ounces per acre per application.
x Preharvest:
o Limited to one application to crop cycle.
o Maximum of 11.4 ounces per acre per application
x Preharvest interval (PHI) is 14 days.
x Limited to 58 ounces per acre per crop cycle


CORN AND SORGHUM
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
CORN (Field and Pop)
Preplant


Preemergence


Postemergence;
 Annual broadleaf weeds


1 to 2 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.
2 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.

1/2 to 1 pints


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

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 13
 Perennial broadleaf weeds

1 to 1-1/2 pints breakage during the period of time when the corn is
brittle.

CORN (Sweet)
Preplant


Preemergence


Postemergence;
 Annual broadleaf weeds


Perennial broadleaf weeds


1 to 2 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.
2 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.

1/2 to 1 pints


1 to 1-1/2 pints

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.
Grain Sorghum (Milo) 1 pint

Apply when sorghum is 6 to 15 inches tall. If sorghum
is taller than 8 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.

RESTRICTIONS AND LIMITATIONS FOR USE ON CORN AND SORGHUM
x Corn (Field and Pop):
o Preharvest Interval (PHI) is 7 days.
o Do not use treated crop as fodder for 7 days following application.
o Maximum Use rate per acre per crop cycle is 100 ounces.
o Preplant or Preemergence:
 Limited to one application per crop cycle.
 Maximum of 33 ounces per acre per application.
o Postemergence:
 Limited to one application per crop cycle.
 Maximum of 16 ounces per acre per application.
o Preharvest:
 Limited to one application per crop cycle.
 Maximum of 50 ounces per acre per application.
x Corn (Sweet):
o Preharvest Interval (PHI) is 45 days.
o Do not use treated crop as fodder for 7 days following application.
o Minimum of 21 days between applications.
o Maximum Use rate per acre per crop cycle is 50 ounces.
o Preplant or Preemergence:
 Limited to one application per crop cycle.
 Maximum of 33 ounces per acre per application.
o Postemergence:
 Limited to one application per crop cycle.
 Maximum of 16 ounces per acre per application.
x Sorghum (milo):
o Preharvest Interval (PHI) is 30 days.
o Do not permit meat or dairy animals to consume treated crop as fodder or forage for 30 days following
application.
o Postemergence:
 Limited to one application per crop cycle.
 Maximum of 33 ounces per acre per application.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 14

CRANBERRIES
For Control of Tall Weeds in Cranberry Bogs
For use only in the states of MA, NJ, OR, WA and WI
APPLICATION
TIMING
AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
Best results when
used in late June
and July.
2.4 pints For Control of Tall Weeds in Cranberry Bogs
Apply with a wooden frame or similar device, shaped like a hockey stick,
with its lower member wrapped with several thicknesses of Turkish
toweling (or other suitable material).
Apply by soaking the toweling in one part Weedar 64 Herbicide to two
parts water. Then with swabbed portion of the stick horizontal, wave left
and right above the cranberry vines, wiping small quantities of the
herbicide onto tall weeds above the crop level.
RESTRICTIONS FOR USE ON CRANBERRIES
x The pre-harvest interval (PHI) is 30 days.
x Limited to 2 application per year.
x Do not exceed 2.4 pints (1.2 lbs ae) per acre per application.
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed a combined total of 1.2 pounds of a.e. per acre per year.
x Do not apply through any type of irrigation system.
x Do not apply by aerial application.
x Do not allow pesticide to drip or touch cranberry vines.
Precaution: INJURY TO CROPS FROM THIS HERBICIDE MAY OCCUR. IF YOU ARE NOT PREPARED TO ACCEPT
SOME DEGREE OF CROP INJURY DO NOT USE THIS PRODUCT ON CRANBERRIES.
GRAPE VINEYARDS
Established at least 3 years to control Field Bindweed (Morning Glory), Canada Thistle and other 2,4-D susceptible
broadleaf weeds.
APPLICATION TIMING AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
Apply when weeds are in the
bud to early bloom stage and
growing vigorously.
Apply after shatter following
bloom and before grape shoots
reach the ground or during
dormant season.
1.8 to 2.7 pints Dilute in 10 to 100 gallons of water to treat one acre of
ground to be sprayed.
For band or spot treatment, calculate rates according to the
actual portion of acre treated.
Use a hooded boom and low pressure flooding nozzles to
deliver coarse droplets.
RESTRICTIONS FOR USE ON GRAPES
x For use only in California.
x The pre-harvest interval (PHI) is 100 days.
x Limited to 1 application per crop cycle.
x Maximum of 2.7 pints (1.36 lbs. ae) per acre per application.
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed a combined total of 1.36 pounds of a.e. per acre per year.
Precaution: Grapes are extremely sensitive to 2,4-D. Use a direct application so no 2,4-D contacts grape leaves and
young shoots or stems.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 15


HOPS
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual broadleaf weeds 1 pint Make directed applications to the row middles.

RESTRICTIONS AND LIMITATIONS FOR HOPS:
x Limited to three (3) applications per crop cycle
x Maximum of 1 pint (0.5 lb. a.e.) per acre per application
x Maximum of 3 pints (1.5 lb a.e.) per acre per crop cycle
x Minimum of 30 days between applications
x Preharvest Interval (PHI) is 28 days after application
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed a combined total of 1.5 pounds of a.e. per acre per year.
[RED] POTATOES
(Only for Use on [Red] Potatoes Intended for Fresh Market)
APPLICATION TIMING AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
Postemergence 2.35 fl. oz. Red Potatoes: Properly timed applications of this product
generally enhance red color, aid in storage retention of red color,
improve skin appearance, increase tuber set, and improve tuber
size uniformity (fewer jumbos). Crop response may vary
depending on variety, stress factors, and local conditions. Varieties
with naturally dark red color generally benefit less from treatment.
RESTRICTIONS FOR USE ON [RED] POTATOES
x The preharvest interval (PHI) is 45 days.
x Minimum of 10 days between applications.
x Postemergence
o Limited to two postemergence application per crop cycle.
o Maximum of 2.35 fluid ounces (0.07 lb 2,4-D ae) per acre per application.
x Apply 2.35 fluid ounces of Weed Rhap A-4D per acre in 5 to 25 gallons of water using ground or aerial equipment.
The specific spray volume selected should be sufficient for good coverage of plants.
PRECAUTIONS FOR USE ON [RED] POTATOES
x Make first application when potatoes are in the pre-bud stage (about 7 to 10 inches high) and make a second
application about 10 to 14 days later.
x Consult with Agricultural Extension Service and other qualified crop advisors for local use precautions .
RICE
WEEDS IN CROP AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Preplant 1 to 2 pints Apply four or more weeks prior to planting rice. DO
NOT USE IN CALIFORNIA.
Postemergence 1 to 2-1/2 pints Apply when rice 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-4D (5905-501) 091517 STK.doc 16
RESTRICTIONS AND LIMITATIONS FOR USE IN RICE
x Preharvest Interval (PHI) is 60 days
x Do not apply more than a total of 50 ounces of WEED RHAP A-4D to rice per crop cycle.
x Preplant:
o Limited to one application per crop cycle.
o Maximum of 33 ounces per acre per application.
x Postemergence:
o Limited to one application per crop cycle.
o Maximum of 50 ounces per acre per application
x Do not use on rice in California without an approved Supplemental Label allowing the use.


WILD RICE
(For Use In Minnesota Only)
WEEDS IN CROP AMOUNT OF
WEEDRHAP A-4D
PER ACRE
USE DIRECTIONS
Common water plantain 1/2 pint Broadcast in 4 to 10 gallons total spray volume. Apply after
water plantain has emerged from the water and when wild rice is
in the 1 to 2 aerial leaf to early tillering stage. Do not spray after
wild rice has reached the boot stage.
RESTRICTIONS AND LIMITATIONS FOR USE IN WILD RICE
x For use only on wild rice grown in commercial paddies.
x Do not apply to wild rice growing in lakes, rivers or streams.
x Water that is drained out of wild rice paddies is not to be used to irrigate other crops. In order to protect federally
listed endangered or threatened species, the Minnesota Department of Agriculture has a program to pre-notify
landowners where pesticide applications may affect federally listed endangered or threatened species.
x Limited to 1 application per crop cycle.
x Do not apply more than 1/2 pint per acre of 2,4-D Amine 4 (0.25 lb. ae/A) per use season.
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed a combined total of 0.25 pounds of a.e. per acre per year.
x (PHI) Do not harvest within 60 days of application.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 17

SOYBEANS (Preplant Only)
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Postemergence

3/4 to 1 pint

Apply not less than 15 days prior to planting soybeans,
when weeds are small and actively growing.
Use the higher rate on larger weeds and when
perennials are present.
1 to 2 pints

Apply not less than 30 days prior to planting soybeans,
when weeds are actively growing.
 In addition to those weeds found on the GENERAL
WEED LIST, WEED RHAP A-4D will suppress or
control the following broadleaf weeds frequently
encountered in reduced tillage soybean production
systems: alfalfa*, bullnettle, smallflowered bittercress,
Carolina geranium, smallflowered buttercup, common
and rough cinquefoil, red clover*, horseweed or
marestail, mousetail, wild mustard, field pennycress,
cutleaf evening primrose, common purslane,
speedwell, velvetleaf, and Virginia copperleaf*. These
weeds are only partially controlled.
Apply no more than 2.0 pints of WEED RHAP A-4D in
one season prior to planting soybeans. After applying,
plant soybean seed as deep as practical or at least 1-
112 to 2 inches deep, Adjust the planter press wheel, If
necessary, to ensure that planted seed is completely
covered.
If desired, may be applied pre-plant to soybeans in
lank mixtures with other herbicides such as Poast®,
Poast Plus®, Roundup®, Roundup D-Pak®, Honcho®,
Gramoxone Extra®, Prowl®. Pursuit Plus®, Scepter®,
Scepter 70 DC, Squadron® and others that are
registered for pre-plant soybean use.
NOTE: Unacceptable injury to soybeans planted in
fields previously treated with WEED RHAP A-4D may
occur and the extent of injury will depend on weather
and agronomic factors such as the amount of weed
vegetation and previous crop residue present that may
be in effect between the time of application and the
emergence of the soybean plant.

RESTRICTIONS AND LIMITATIONS FOR USE IN SOYBEANS (PREPLANT)
x Preplant:
o Preplant for Two (2) applications per crop cycle
 Limited to 2 preplant applications per crop cycle.
 Maximum of 16 ounces per acre per preplant application.
 Apply not less than 30 days prior to planting soybeans.

o Preplant for Single (1) application per crop cycle
 Limited to 1 preplant application per crop cycle.
 Maximum of 32ounces per acre per preplant application.
 Apply not less than 15 days prior to planting soybeans

x Do not apply WEED RHAP A-4D when weather conditions such as temperature, air inversions, or wind favor drift
from treated areas to susceptible plants.
x Do not apply WEED RHAP A-4D prior to planting soybeans if you are not prepared to accept the results of
soybean injury including possible loss of stand and yield.
x Do not replant fields treated with WEED RHAP A-4D in the same growing season with crops other than those
labeled for 2, 4-D pre-plant use.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 18
x Do not mow or cultivate weeds prior to treating with WEED RHAP A-4D as poor control may result.
x Do not cut for feed treated hay, forage, or fodder or graze treated soybeans to livestock.
x Do not apply WEED RHAP A-4D pre-plant to soybeans in fields having a coarse-textured soil where the percent
organic matter is <1.0%.
x Only one application of WEED RHAP A-4D may be made prior to planting soybeans per growing season.
x Do not feed treated hay, forage or fodder. Livestock should be restricted from feeding/grazing of treated cover
crops.
x Not currently registered for use In California.
STRAWBERRIES (Established Planting Only)
DO NOT USE IN CALIFORNIA OR FLORIDA
APPLICATION TIMING AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
Established Strawberries Only
 Apply in early spring when
 strawberries are dormant or
 immediately after the last picking.
2 to 3 pints Apply in 25 - 50 gallons of water per acre.
RESTRICTIONS AND LIMITATIONS FOR STRAWBERRIES
x Apply only in established strawberry plantings.
x Apply in early spring when strawberries are dormant or immediately after the last picking.
x Limited to 1 application per crop cycle.
x Maximum of 3 pints (1.5 lb. ae) per acre per application.
x Weed Rhap A-4D contains 3.8 pounds a.e. of 2,4-D per gallon. When tank mixing with products that contain 2,4-
D, do not exceed a combined total of 1.5 pounds of a.e. per acre per year.
SUGARCANE
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Preemergence

4 pints

Apply before canes appear for control of emerged
broadleaf weeds.
DO NOT USE IN CALIFORNIA.

Postemergence

1-1/2 to 4 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 8 pints of WEED RHAP A-4D to sugarcane per acre per crop cycle.
x Do not harvest cane prior to crop maturity.
x Pre-emergence:
o Limited to one application per crop cycle.
o Maximum of 4 pints per acre per application
x Postemergence:
o Limited to one application per crop cycle.
o Maximum of 4 pints per acre per application

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 19

CONSERVATION RESERVE PROGRAM AREAS
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual
broadleaf weeds
 In young grasses

 In established grasses


½ to 1 pint

½ to 2 pints
Apply to actively growing annual broadleaf weeds. Use
½ to 1 pint when weeds are small; use higher rates on
older weeds.
Do not apply to young grasses with fewer than 6
leaves or prior to tillering, as excessive injury may
result.
Do not apply more than 1 pint until grasses are well
established as excessive injury may result.
Biennial and perennial
broadleaf weeds
 In established grasses
2 to 4 pints Treat when biennial weeds are in the seedling to
rosette stage and before flower stalks become
apparent. Treat perennial weeds in the bud to bloom
stage. Apply to actively growing weeds.
RESTRICTIONS AND LIMITATIONS FOR USE ON CONSERVATION RESERVE PROGRAM AREAS
x Use at least 2 gallons of water per acre by air and 5 gallons of water per acre by ground.
x Do not harvest or graze treated Conservation Reserve Program areas.
x Do not apply to grasses in the boot to dough stage if grass seed production is desired
ESTABLISHED GRASS PASTURES, RANGELAND
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual
broadleaf weeds


Biennial and perennial
broadleaf weeds
2 pints


2 to 4 pints
Apply when weeds are small and actively growing and
prior to bud stage. Spray while muskthistles 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 newly 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 IN PASTURES AND RANGELANDS
x Do not graze (dairy) cattle in treated areas for 7 days after application.
x Do not cut forage for hay within 30 days of application.
x Do not permit dairy animals or meat animals being finished for slaughter to forage treated fields within 3 days of
slaughter.
x Postemergence:
o Limited to 2 applications per year.
o Maximum of 4 pints per acre per application.
o Minimum of 30 days between applications.
o If grass is to be cut for hay, agricultural use requirements for the worker protection standards are
applicable.
o For program lands, such as the Conservation Reserve Program, consult the program rules to determine
whether grass or hay may be used. The more restrictive requirements of the program rules or this label
must be followed.
x For susceptible annual and biennial broadleaf weeds, do not exceed 2 pints (1.0 lb ae) / acre per application. For
moderately susceptible biennial and perennial broadleaf weeds, do not exceed 4 pints (2.0 lbs. ae) / acre per
application. Spot treatment do not exceed 4 pints (2.0 lbs. ae) / acre.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 20
FALLOWLAND (CROP STUBBLE ON IDLE LAND OR POST-HARVEST TO CROPS OR BETWEEN CROPS)
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual broadleaf weeds

1 to 2 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 4 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 – 6 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
4 – 6 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 IN FALLOWLAND (CROP STUBBLE ON IDLE LAND OR POST-
HARVEST TO CROPS OR BETWEEN CROPS)
x Only labeled crops can be planted within 30 days after application.
x Limited to 2 applications per year.
x Maximum of 4 pints per acre per application.
x Minimum of 30 days between applications .
TURF GROWN FOR SEED OR SOD
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual and perennial
broadleaf weeds
2 to 4 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.
RESTRICTIONS AND LIMITATIONS FOR USE ON TURF GROWN FOR SEED OR SOD
x Do not graze dairy animals or cut forage for hay within 7 days of application.
x Limited to 2 applications per year.
x Maximum of 4 pints per application.
x Minimum of 21 days between applications.
NON-CROPLAND
Such as Fencerows, Hedgerows, Roadsides, Drainage Ditches, Rights-of-Way,
Utility Power Lines, Railroads
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual broadleaf weeds 2 to 4 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 areas until grass is well established.
Bentgrass, clover, legumes and dichondria may be
injured by this treatment.
Biennial and perennial
broadleaf weeds
4 pints
Postemergence (Woody
Plants)
4 to 6 pints To control woody plants susceptible to 2, 4-D, such as
alder, Buckbrush, elderberry, sumac, and willow on
non-crop areas, use 2 to 3 quarts of WEED RHAP A-
4D per acre in 100 gallons of water. Wet all parts of the

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 21
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.
RESTRICTIONS AND LIMITATIONS FOR USE ON NON-CROPLAND
x Postemergence (annual and perennial weeds):
o Limited to 2 applications per year
o Maximum of 4 pints 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 8 pints per acre per year
x Do not graze dairy animals for 7 days following application.
x Use sufficient spray volume for thorough and uniform coverage.
x 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.
SPOT TREATMENT IN NON-CROP AREAS
Mix 2 to 3 fluid ounces of WEED RHAP A-4D in 3 gallons of water. Wet all weeds and stems thoroughly. For best results,
treat when weeds are actively growing.
ORNAMENTAL TURF AREAS
Golf Courses, Cemeteries, Parks, Airfields, Roadsides, Sports fields, Turfgrass, Lawns, Vacant Lots
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
Annual Broadleaf weeds


2 to 3pints 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 dichondria may be
injured by this treatment.
Biennial and perennial
broadleaf weeds
3 pints
RESTRICTIONS AND LIMITATIONS: ORNAMENTAL TURF AREAS
Golf Courses, Cemeteries, Parks, Sports fields, Turfgrass, Lawns,
x Postemergence (annual and perennial weeds):
o Limited to 2 applications per year
o Maximum of 3pints per acre per application
o Maximum seasonal rate is 100 ounces 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.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 22

FORESTRY USES
Forest site preparation, forest roadsides, brush control, Poplar / Cottonwood for pulp, established conifer
release, including Christmas trees and reforestation areas
TREATMENT SITE
METHOD OF APPLICATION
AMOUNT OF
WEED RHAP A-4D
PER ACRE
USE DIRECTIONS
Annual broadleaf weeds 2 to 4 pints Apply when weeds are small and growing actively before the
bud stage. Apply when biennial and perennial species are in
the seedling to rosette stage and before flower stalks appear.
For difficult to control perennial broadleaf weeds and woody
species, use up to 8 pints of Weed Rhap A-4D and 1 to 4
quarts of Tahoe® 3A herbicide per acre. For conifer release,
make application in early spring before budbreak of conifers
when weeds are small and actively growing.
Biennial and perennial
broadleaf weeds and
susceptible woody plants
4 to 8 pints
Spot Treatment to control
broadleaf
weeds
See Use
Directions in Spot
Treatment
Section
Note: To control broadleaf weeds in small areas with a hand
sprayer, use an application rate equivalent to the broadcast
rate listed for this treatment site and spray to thoroughly wet
all foliage. See rate conversion table and instructions for
"Spot Treatment" and “Hand-Held Sprayers” for use of hand-
held sprayers.
Poplar / Cottonwood trees
grown for pulp
– broadleaf weed control
1/2 pint to 3 pints Applied through wick applicators or conventional ground
sprayers. (Excluding irrigation systems) Do not allow this
product to contact leaves or green bark of the tree.
Apply in enough water to provide uniform coverage prior to or
after planting of Poplar/Cottonwood trees. Application during
warm weather is preferred. Apply when weeds are actively
growing, preferably before bud stage. Repeat treatment may
be necessary for less susceptible weeds; re-apply as needed.
Accord® may be mixed with this product to increase weed
control. Follow both labels to determine correct rates. Two
quarts or more of a spreader - activator per 100 gallons of
spray solution may be added to improve herbicide
performance.
Conifer Release: Species
such as white pine, ponderosa
pine, jack pine, red pine, black
spruce, white spruce, red
spruce, and balsam fir
3 to 8 pints To control competing hardwood species such as alder,
aspen, birch, hazel, and willow, apply from mild to late
summer when growth of conifer trees has hardened off and
woody plants are still actively growing. Apply with ground or
air equipment, using sufficient spray volume to ensure
complete coverage. Because this treatment may cause
occasional conifer injury. Do not apply if such injury cannot be
tolerated.
Directed Spray:
Conifer plantations including
pine
8 pints / 100
gallons of spray
Apply when brush or weeds are actively growing by directing
the spray so as to avoid contact with conifer foliage and
injurious amounts of spray. Apply in oil, oil-water, or water
carrier in a spray volume of 10 to 100 gallons per acre.
Basal Spray
May also be used in
rangeland,
pastures, and noncropland


17 pints / 100
gallons of spray

or

2.6 fl oz / 1 gallon
of spray
Thoroughly wet the base and root collar of all stems until the
spray begins to accumulate around the root collar at the
ground line. Wetting stems with the mixture may also aid in
control.
Surface of Cut Stumps May also be used in rangeland, pastures, and noncropland
Apply as soon as possible after cutting trees. Thoroughly
soak the entire stump with the 2,4-D mixture including cut
surface, bark and exposed roots.
Frill and Girdle May also be used in rangeland, pastures, and noncropland
Cut frills (overlapping V-shaped notched cut downward
through the bark in a continuous ring around the base of the
tree) using and axe or other suitable tool. Saturate the freshly

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 23
cut frills with the 2,4-D mixture.
Tree Injection Application
May also be used in
rangeland,
pastures, and noncropland
1 to 2 ml per
injection site
To control and prevent resprouting of unwanted hardwood
trees such as elm, hickory, oak and sweetgum forests and
other non-crop areas, apply by injecting at a rate of 1 ml of
undiluted Weed Rhap A-4D per inch of trunk diameter as
measured at breast height (DBH), approximately 4 1/2 ft.
above the ground. Injection sites, however, should be as
close to the root collar as possible and the injection bit must
penetrate the inner bark.
For resistant species such as hickory, injections should
overlap.
Maples should not be treated during the spring sap flow.
For hard to control species such as ash, alder, aspen, birch,
blackgum, cherry, tulip poplar, maple, and dogwood use 2 ml
of undiluted Weed Rhap A-4D per injection site or double the
number of 1 ml injections.
For best results, injections should be made during the
growing season, May 15th through October 15th.
For Dilute Injection: Mix 1 gallon of product in 19 gallons of
water for dilute injections.
For Concentrate Injections: Use 1 to 2 ml of concentrate
WEED RHAP A-4D per injection.
Note: No Worker Protection Standard workers entry
restrictions or worker notification requirements apply when
this product is directly
RESTRICTIONS AND LIMITATIONS FOR FORESTRY USE
x Do not make more than one broadcast application per year.
x For broadcast applications, do not apply more than 8 pints (4 lbs. ae) per acre per 12-month period.
x Basal spray, Cut Surface - Stumps, and Frill:
o Limited to one application per year.
o Maximum of 2.0 ml of 8.0 lbs ae per gallons of spray solution.
x Injections:
o Limit of one basal spray or cut surface application per year.
o Maximum of 2.0 ml of 4.0 lbs ae per gallon formulation per injection site.
BIOENERGY CROPS - GRASSES
WEED CONTROL IN GIANT REEDGRASS (Arundo donax), SWITCHGRASS (Panicum virgatum), GIANT
MISCANTHUS (Miscanthus x giganteus) AND OTHER NON-FOOD PERENNIAL GRASS BIOENERGY CROPS.
USE INSTRUCTIONS
This product may be applied for broadleaf weed control in giant reedgrass (Arundo donax), switchgrass (Panicum
virgatum) giant Miscanthus (Miscanthus x giganteus) and other non-food perennial grass bioenergy crops.

For perennial grasses, apply no earlier than 4-leaf stage. Apply 1/2 to 2 pints per acre to seedling grasses with ground or
air equipment. A rate of 1 to 4 pints per acre should be used when grasses are well established.
RESTRICTIONS AND LIMITATIONS
x Limited to 2 broadcast applications per year.
x Maximum of 4 pints (2.0 lb. ae) per acre per application.
x Minimum of 30 days between applications.
x Apply by air or ground equipment in sufficient gallonage to obtain adequate coverage. Minimum of 2 gallons of
water per acre for aerial application and 10 or more for ground application.
x Do not spray immediately before irrigation and withhold above-ground irrigation for 3 days after application.
x Treated plantings not to be consumed by human or animal.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 24
BIOENERGY CROPS - TREES
WEED CONTROL IN HYBRID POPLAR TREES, COTTONWOOD TREES AND WILLOW TREES
GROWN AS BIOENERGY CROPS
USE INSTRUCTIONS
This product may be used in hybrid poplar trees, cottonwood trees and willow trees grown as bioenergy crops. Application
during warm weather is preferred. Apply when weeds are actively growing, preferably before bud stage. Repeat treatment
may be necessary for less susceptible weeds; re-apply as needed.

For hybrid poplar, cottonwood and willow make application prior to or after planting. For ground spray equipment, use 1/2
to 3 pints per acre. Apply 1 to 4 pints per acre using wick type applicators that treat weeds directly. Crop injury may result
if the wick, wick solution or spray solution contact leaves or green bark of the crop trees.
NOTE: Extreme care should be exercised to avoid contact of the spray solution, spray, drift, or mist with tree
foliage, green bark of trucks, stems or exposed roots of the poplar, cottonwood and will trees. Contact of the
spray solution to these parts can result in serious damage. Even when using extreme care in application of this
product, injury to crops from this herbicide may occur. If you are not prepared to accept some degree of crop
injury, do not use this product.
TANK MIXTURES
This product may be tank mixed with Credit 41 Herbicide (EPA Reg. No. 71368-20) to provide broader spectrum of
control.
RESTRICTIONS AND LIMITATIONS
x Limited to 1 broadcast applications per year.
x Maximum of 4 pints (2.0 lb. ae) per acre per application.
x Minimum of 30 days between applications.
x Use sufficient spray volume for thorough and uniform coverage, but a minimum of 10 gallons per acre for
broadcast application.
x Do not apply this product by air for use of weed control in hybrid poplar tree, cottonwood trees and willow tress
grown as bioenergy crops.
x Do not use this product in or near greenhouses, for use of weed control in hybrid poplar tree, cottonwood trees
and willow tress grown as bioenergy crops.
x Do not spray immediately before irrigation and withhold above-ground irrigation for 3 days after application.
x Treated plantings not to be consumed by human or animal.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 25
WEED AND BRUSH ON IRRIGATION CANAL DITCHBANKS –
Seventeen Western States: Arizona, California, Colorado, Idaho, Kansas, Montana, Nebraska, New Mexico, Nevada,
North Dakota, Oklahoma, Oregon, South Dakota, Texas, Utah, Washington, Wyoming.
WEEDS IN CROPS AMOUNT OF WEED RHAP
A-4D PER ACRE
USE DIRECTIONS
For control of annual and
perennial broadleaf weeds
1 to 2 quarts per acre Apply 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.
For woody brush and patches
of perennial broadleaf weeds,
 Mix 4 quarts in 150 gallons of water. Wet foliage
thoroughly, using approximately 1 gallon of spray
solution per square rod.

APPLICATION GUIDELINES:

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.

RESTRICTIONS AND LIMITATIONS: WEED AND BRUSH ON IRRIGATION CANAL DITCHBANKS
x Postemergence:
o Limited to 2 applications per season.
o Maximum of 4 pints per acre per application.
o Minimum of 30 days between applications.
x Spot treatment permitted.
x Do not use on small canals with a flow rate less than 10 cubic feet per second (CFS) where water will be used for
drinking purposes. CFS may be estimated by using the formula below. The approximate velocity needed for the
calculation can be determined by observing the length of time that it takes a floating object to travel a defined
distance. Divide the distance (ft.) by the time (sec.) to estimate velocity (ft. per sec.) Repeat 3 times and use the
average to calculate CFS.

Average Width (ft.) x Average Depth (ft.) x Average Velocity (ft. per sec.) = CFS

x Note: For ditch bank weeds:
o Do not allow boom spray to be directed onto water surface.
o Do not spray across stream to opposite bank.
x 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.

AQUATIC WEED CONTROL
Notice to Applicators: Before application, coordination and approval of local and state authorities may be required,
either by letter of agreement or issuance of special permits for such use.

Fish breathe oxygen in the water and a water/oxygen ratio must be maintained. Decaying weeds use up oxygen. To
avoid fish kill from decaying plant material, do not treat more than one half the lake or pond at one time. For large bodies
of weed infested waters, leave buffer strips of at least 100 feet wide and delay treatment of these strips for 4 to 5 weeks or
until the dead vegetation has decomposed.
 Ground or Surface Application: Do not apply when wind speeds are at or above 10 mph.

Air Application: Do not apply when wind speeds are at or above 5 mph. The wind speed restrictions do not apply to
subsurface applications used in weed control programs.

Delay the use of treated waters for irrigation for three weeks after treatment unless an approved assay shows that the
water does not contain more than 0.1 ppm 2, 4-D acid. Do not treat irrigation ditches in areas where water will be used to
overhead sprinkler irrigate susceptible crops especially grapes, tomatoes and cotton.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 26

Delay the use of treated water for domestic purposes for a period of three weeks or until such time as an approved assay
shows that the water contains no more than 0.1 ppm 2, 4-D acid.
FOR AQUATIC WEEDS IN LAKES, PONDS, RESERVOIRS, MARSHES, BAYOUS, DRAINAGE DITCHES, CANALS,
AND RIVERS AND STREAMS THAT ARE QUIESCENT OR SLOW MOVING: Use 2 ½ to 4 ½ pints of WEED RHAP A-
4D in 50 to 100 gallons of water per acre. Spray to wet foliage thoroughly. Application should be made when leaves are
fully developed above water line 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. Perennial and
other hard to control weeds may require a repeat application to give adequate control.
WATER HYACINTH (Eichornia crassipe): For control of actively growing plants with surface and air applications, use 4
to 8 pints per acre. Spray the weed mass only. Use 8 pints when plants are matured or when the weed mass is dense.
Repeat as necessary to kill regrowth and hyacinth plants missed in the previous application.

Surface Application: Use power sprayers operated with a boom or spray gun mounted on a boat, tractor, or truck.
Thorough wetting of foliage is essential for maximum control. Use 100 to 400 gal/A of spray mixture. Special precautions
such as the use of low pressure, large nozzles and thickening agents should be taken to avoid spray drift in areas of
sensitive crops. For DIRECTASPRA
TM
operation, use with 1 pint of drift control agent in 50 to 100 gallons of water. For
other applications, follow the drift control agent label for mixing directions. Air Application: Use drift control spray
equipment or thickening agents mixed into the spray solution. Apply 1.0 gallon per acre through standard boom systems
with a minimum of 5 gallons of spray mix per acre. For MICROFOIL® drift control spray systems, apply in 12 to 15
gallons spray mix per acre.
WATER MILFOIL (Myriophyllum spicatum): For Eurasian Water Milfoil in programs conducted by the Tennessee
Valley Authority in dams and reservoirs of the TVA system, WEED RHAP A-4D will control Water Milfoil with surface,
subsurface and air applications.

To control water milfoil when less than 5 gallons of concentrate per acre is used , dilute the concentrate with water to
apply a minimum of 5 gallons of spray mix per acre. Do not treat within ½ mile of potable water intakes. Shoreline areas
should be treated by sub-surface injection applied by boat to avoid aerial drift. Do not apply when weather conditions
favor drift from target area.

Open Water Areas: To reduce contamination and prevent undue exposure to fish and other aquatic organisms, do not
treat water areas that are not infested with aquatic weeds. Apply 2.5 to 10 gallons per acre. The higher rate is used in
areas of greater water exchange. These areas may require a repeat application. For best results, apply in spring or early
summer when milfoil starts to grow. The timing can be checked by sampling the lake bottom in areas heavily infested with
weeds the year before.

Subsurface Application: Apply 2.5 to 10 gallons per acre as a concentrate directly into the water through boat mounted
distribution systems.

Surface Application: Apply 2.5 to 10 gallons per acre in a minimum spray volume of 5 gallons mix per acre.

Air Application: Use drift control spray equipment or thickening agents mixed into the spray solution. Apply 2.5 to 10
gallons per acre through standard boom systems with a minimum of 5 gallons of spray mix per acre. For MICROFOIL®
drift control spray systems, apply in 12 to 15 gallons spray mix per acre.
RESTRICTIONS AND LIMITATIONS: AQUATIC USES:
x Floating and Emergent Weeds
o Maximum of 8 pints per surface acre per application
o Limited to two (2) applications per season
o Minimum 21 days between applications
o Spot treatments are permitted
o Apply to emergent aquatic weeds in ponds, lakes, reservoirs, marshes, bayous, drainage ditches, non-
irrigation canals, rivers, and streams quiescent or slow moving.
o Coordination and approval of local and state authorities may be required, either by letter of agreement or
issuance of special permits for aquatic applications.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 27
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 with 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 phytotoxicity 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 crops 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:
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 7 days from the time of application has elapsed, or,
iii. An approved assay indicates that 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 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 greater 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 users. 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 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 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 from 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, 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.
E. 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.
F. Drinking water setback distances do not apply to terrestrial application of 2,4-D adjacent to water bodies with potable
water intakes.

Filename: Weed Rhap A-4D (5905-501) 091517 STK.doc 28
3. Except as states above, there are no restrictions on using water from treated areas for swimming, fishing, water
livestock or domestic purposes.
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 must 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 Chemical Company (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 Chemical Company’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 consistent with applicable 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, 2017.