crop-chem-docs/corpus/epa_ppls/279-9655.md

# WC-DCB

- EPA Reg No: **279-9655**
- Registrant: FMC CORPORATION 
- Signal word: Caution
- Active ingredients: Dicamba, sodium salt (77%)
- Label accepted: 2020-03-20
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000279-09655-20200320.pdf

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Registration Notice Conditional v.20150320 
U.S. ENVIRONMENTAL PROTECTION AGENCY 
Office of Pesticide Programs 
Registration Division (7505P) 
1200 Pennsylvania Ave., N.W. 
Washington, D.C. 20460
EPA Reg. Number:
279-9655
Date of Issuance: 
3/20/20 
NOTICE OF PESTICIDE: 
 X Registration 
 Reregistration 
Term of Issuance: 
Conditional 
(under FIFRA, as amended)
Name of Pesticide Product:
WC-DCB 
Name and Address of Registrant (include ZIP Code): 
FMC Corporation 
2929 Walnut Street 
Philadelphia, PA 19104 
Note: Changes in labeling differing in substance from that accepted in connection with this registration must be submitted to and accepted by the 
Registration Division prior to use of the label in commerce. In any correspondence on this product always refer to the above EPA registration number.
On the basis of information furnished by the registrant, the above named pesticide is hereby registered 
under the Federal Insecticide, Fungicide and Rodenticide Act. 
Registration is in no way to be construed as an endorsement or recommendation of this product by the 
Agency. In order to protect health and the environment, the Administrator, on his motion, may at any 
time suspend or cancel the registration of a pesticide in accordance with the Act. The acceptance of any 
name in connection with the registration of a product under this Act is not to be construed as giving the 
registrant a right to exclusive use of the name or to its use if it has been covered by others. 
This product is conditionally registered in accordance with FIFRA section 3(c)(7)(A). You must comply 
with the following conditions: 
1. Submit and/or cite all data required for registration/reregistration/registration review of your
product under FIFRA when the Agency requires all registrants of similar products to submit such
data.
Signature of Approving Official:
Emily Schmid, Product Manager 25 
Herbicide Branch, Registration Division (7505P) 
Date: 
 3/20/20 
EPA Form 8570-6

Page 2 of 3 
EPA Reg. No. 279-9655 
Decision No. 558120 
2. You are required to comply with the data requirements described in the DCI Order identified
below:
a. Dicamba GDCI-029801-1659
You must comply with all of the data requirements within the established deadlines. If you have 
questions about the Generic DCI Order listed above, you may contact the Chemical Review 
Manager in the Pesticide Reevaluation Division: 
http://iaspub.epa.gov/apex/pesticides/f?p=chemicalsearch:1 
3. The data requirements for storage stability and corrosion characteristics (Guidelines 830.6317
and 830.6320) are not satisfied. A one year study is required to satisfy these data requirements.
You have 18 months from the date of registration to provide these data.
4. Make the following label changes before you release the product for shipment:
 Revise the EPA Registration Number to read, “EPA Reg. No. 279-9655.”
5. Submit one copy of the final printed label for the record before you release the product for
shipment.
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 the Federal Insecticide Fungicide and Rodenticide Act and is 
subject to review by the Agency. If the website is false or misleading, the product would be misbranded 
and unlawful to sell or distribute under FIFRA section 12(a)(1)(E). 40 CFR 156.10(a)(5) list examples 
of statements EPA may consider false or misleading. In addition, regardless of whether a website is 
referenced on your 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. 
If you fail to satisfy these data requirements, EPA will consider appropriate regulatory action including, 
among other things, cancellation under FIFRA section 6(e). Your release for shipment of the product 
constitutes acceptance of these conditions. A stamped copy of the label is enclosed for your records. 
Please also note that the record for this product currently contains the following CSFs: 
 Basic CSF dated 12/05/2019
If you have any questions, please contact Lydia Crawford by phone at 703-347-0622, or via email at 
Crawford.Lydia@epa.gov.

Page 3 of 3 
EPA Reg. No. 279-9655 
Decision No. 558120 
Enclosure

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WC-DCB
SOLUBLE GRANULE
For weed control in asparagus, conservation reserve programs, corn, cotton, fallow croplands, 
farmstead (noncropland), sorghum, grass grown for seed, hay, proso millet, pasture, rangeland, 
cereal grains, soybean, sugarcane, and turf.
Active Ingredient By Weight
Sodium Salt of Dicamba ………………….…… 77%
Other Ingredients ………………………………. 23%TOTAL 100%
EPA Reg. No. 279-OALL EPA Est. No.
* Contains 70% 3,6-dichloro-o-anisic acid (dicamba)
Nonrefillable Containers Refillable ContainersNet: OR Net: 
KEEP OUT REACH OF CHILDREN
CAUTION
Si usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle.
(If you do not understand the label, find someone to explain it to you in detail.)
FIRST AID
IFONSKIN OR CLOTHING: Takeoffcontaminatedclothing.
Rinseskinimmediatelywithplentyofwaterfor15-20minutes.
Callapoison control center ordoctor for treatmentadvice.
IF SWALLOWED: Call poison control center or doctor immediately for treatment advice.
Have person sip a glass of water if able to swallow.
DO NOT induce vomiting unless told to by a poison control center or doctor.
DO NOT give anything by mouth to an unconscious person.
IF IN EYES: Hold eye open and rinse slowly and gently with water for 15-20 minutes.
Remove contact lenses, if present, after the first 5 minutes, then continue rinsing.
Call a poison control center or doctor for treatment advise.
HOTLINE NUMBER
Havetheproductcontainerorlabelwithyou whencalling apoisoncontrolcenter, doctor orgoingfortreatment. 
You may also contact 1-800-331-3148 for emergency medical treatment information.
NOTE TO PHYSICIAN:
Probable mucosal damage may contraindicate the use of gastric lavage.
Sold By
FMC Corporation 2929 Walnut StreetPhiladelphia, PA 19104
SODIUM SALT OF DICAMBA GROUP4 HERBICIDE

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PRECAUTIONARY STATEMENTS
HAZARDS TO HUMANS AND DOMESTIC ANIMALS
CAUTION
Harmful if swallowed or absorbed through skin. Avoid breathing dust. Avoid contact with skin, eyes or 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. Wear protective eyewear and protective 
clothing: long sleeved shirt and long pants, goggles, socks, shoes, and waterproof gloves.
PERSONAL PROTECTIVE EQUIPMENT (PPE)
All mixers, loaders, and applicators and other handlers must wear:Long-sleeved shirt and long pants
Chemical resistant gloves (except for pilots)
Shoes plus socks
Protective eyewear
See engineering controls for additional requirements and exceptions.
Discard clothing and other absorbent materials that have been drenched or heavily contaminated with this 
product's concentrate. DO NOTreuse them. 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 Control Statements:
When handlers use closed systems, 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. Pilots must use cockpits in a manner that meets 
the requirements listed in the Worker Protection Standard (WPS) for agricultural pesticides 40 CFR 170.240(d)(4-6}.
IMPORTANT: When reduced PPE is worn because a closed system is being used, handlers must be provided all 
PPE specified above for "applicators and other handlers" and have such PPE immediately available for use in an 
emergency, such as a spill or equipment break-down.
USER SAFETY RECOMMENDATIONS
USERS SHOULD: 
Wash hands before eating, drinking, chewing gum, using tobacco or using the toilet. 
Remove clothing/PPE immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. 
Remove PPE immediately after handling this product. Wash the outside of gloves before removing. As soon as possible, wash thoroughly and change into clean clothing.
ENVIRONMENTAL HAZARDS
Keep out of lakes, streams, or ponds. For terrestrial uses, DO NOTapply directly to water, or to areas where surface 
water is present or to intertidal areas below the mean high water mark. DO NOTcontaminate water when disposing 
of equipment washwaters or rinsate. Apply this product only as directed on the label.
This chemical is known to leach through soil into ground water under certain conditions as a result of agricultural use. 
Use of this chemical in areas where soils are permeable, particularly where the water table is shallow, may result in 
ground water contamination.
Ground and Surface Water Protection
Point Source contamination: To prevent point source contamination, DO NOTmix, load this pesticide product within 
50 feet of wells (including abandoned wells and drainage wells), sink holes, perennial or intermittent streams and 
rivers. and natural or impounded lakes and reservoirs. DO NOTapply pesticide product within 50 feet of wells. This
setback does not apply to properly capped or plugged abandoned wells and does not apply to impervious pad or 
properly diked mixing/loading areas as described below.
Mixing, loading, rinsing, or washing operations performed within 50 feet of a well are allowed only when conducted on 
an impervious pad constructed to withstand the weight of the heaviest load that may be on or move across the pad. 
The pad must be self-contained to prevent surface water flow over or from the pad. The pad capacity must be 
maintained at 110% that of the largest pesticide container or application equipment used on the pad and have 
sufficient capacity to contain all product spills, equipment or container leaks, equipment wash waters, and rainwater 
that may fall on the pad. The containment capacity does not apply to vehicles delivering pesticide shipments to the

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mixing/loading site. States may have in effect additional requirements regarding wellhead setbacks and operational 
containment.
Care must be taken when using this product to prevent a) back siphoning into wells, b) spills, or c) improper disposal 
of excess pesticide, spray mixtures or rinsate. Check valves or antisiphoning devices must be used on all mixing 
equipment.
Movement by surface runoff or through soil: DO NOTapply under conditions which favor runoff. DO NOTapply to 
impervious substrates such as paved or highly compacted surfaces in areas with high potential for ground water 
contamination. Ground water contamination may occur in areas where soils are 
permeable or coarse and ground water is near the surface. DO NOTapply to soils classified as sand with less than 
3% organic matter and where ground water depth is shallow. To minimize the possibility of ground water 
contamination, carefully follow application rates as affected by soil type in the Product Information section of this 
label.
Movement by water erosion of treated soil: DO NOTapply or incorporate this product through any type of irrigation 
equipment or by flood or furrow irrigation. Ensure treated areas have received at least one-half inch rainfall (or 
irrigation) before using tail water for subsequent irrigation of other fields.
Engineered Species Concern: The use of any pesticide in a manner that may kill or otherwise harm an endangered 
species or adversely modify their habitat is a violation of federal law. 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 NOTenter or allow worker entry into treated areas during the restricted-entry interval (REI) of 24 hours.
EXCEPTION: If the product is soil injected or soil incorporated, the Worker Protection Standard, under certain 
circumstances, allows workers to enter the treated area if there will be no contact with anything that has been 
treated.
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that 
involves contact with anything that has been treated, such as plants, soil, or water is:
Coveralls worn over short-sleeve shirt and short pants
Chemical-resistant footwear plus socks
Chemical-resistant gloves made of any waterproof material
Chemical-resistant headgear for overhead exposure
Protective eyewear
DIRECTIONS FOR USE
It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
WC-DCB, referred to below as WC-DCB, must be used only in accordance with instructions on this label or as 
otherwise permitted by FIFRA.
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 apply this product through any type of irrigation system.
Before applying WC-DCB, read all directions and precautions appearing on the container label and in this 
booklet. Failure to follow all directions and precautions may result in unsatisfactory weed control, crop injury, 
or illegal residues.
Check with your state extension service or Department of Agriculture before use, to be certain WC-DCB is registered in
NONAGRICULTURAL USE REQUIREMENTS
The requirements in this box apply to uses of this product that are NOTwithin 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 NOTenter or allow others to 
enter until sprays have dried.

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your state.
Always read the entire label, including the Conditions of Sale and Limitation of Warranty and Liability.
PRODUCT INFORMATION
WC-DCB is formulated as water dispersible granule intended for use in a spray to control and suppression of many 
annual, biennials, and perennial broadleaf weeds, as well as woody brush and vines listed in the “Weed Control 
Information” section of this label. WC-DCB may be used for control of these weeds in asparagus, corn, cotton, 
conservation reserve programs, fallow cropland, grass grown for seed, hay, proso millet, pasture, rangeland, 
farmstead (noncropland), small grains, sorghum, sugarcane, and turf.
MODE OF ACTION
WC-DCB is readily absorbed by plants through shoot and root uptake, translocates throughout the plant's system, 
and accumulates in areas of active growth. WC-DCB interferes with the plant's growth hormones (auxins) resulting 
in death of many broadleaf weeds.
RESTRICTIONS
•DO NOTtreat irrigation ditches or water used for crop irrigation or domestic uses.
•DO NOTapply this product through any type of irrigation system.
•DO NOTapply 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 responsibleforpesticideregulation
•Do notapply WC-DCB by air in the state of New York.
Table 1. Crop-specific Maximum Use Rates1
Crop
Maximum Rate of WC-
DCB per Acre per 
Application 
(ounces)
Dicamba Acid 
Equivalent Per 
Acre (Lbs.)
Maximum In-Crop 
Rate of WC-DCB
per Season 
(ounces)
Dicamba Acid 
Equivalent per 
Season
(Lbs.)
Asparagus 12 0.525 12 0.525
Barley, 
Fall 
Sprinq 6
6
0.2625
0.2625
8.5
8
0.3719
0.35
Corn 12 0.525 17 0.7438
Cotton
Fallow Ground
6 0.2625 6 0.2625
24 1.05 24 1.05
Grass Grown for seed 24 1.05 48
Proso Millet 3 0.1313 3 0.1313
Pastureland 24 1.05 24 1.05
Conservation Reserve
Program (CRP) 24 1.05 48 2.1
Oats 3 0.1313 3 0.1313
Sorqhum 6 0.2625 12 0.525
Soybeans 24 1.05 48 2.1
Sugarcane 24 1.05 48 2.1
Turf 24 1.05 24 1.05
Triticale 3 0.1313 3 0.1313
Wheat 6 0.2625 12 0.525
'Refer to Crop-specific Information section for more details.
PRECAUTIONS
WC-DCB may cause injury to desirable trees and plants, particularly beans, cotton, flowers, fruit trees, grapes, 
ornamentals, peas, potatoes, soybeans, sunflowers, tobacco, tomatoes, and other broadleaf plants when 
contacting their roots, stems, or foliage. These plants are most sensitive to WC-DCB during their development

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or growing stage.
Stress. DO NOTapply to crops under stress due to lack of moisture, hail damage, flooding, herbicide injury, 
mechanical injury, insects, or widely fluctuating temperatures as injury may result.
Rainfall or irrigation occurring within 4 hours after postemergence applications may reduce the effectiveness of 
WC-DCB.
WEED RESISTANCE MANAGEMENT
WC-DCB, which contains the active ingredient dicamba is a group 4 herbicide based on the mode of action 
classification system of the Weed Science Society of America. Although WC-DCB has a low probability of selecting 
for resistant weed biotypes. Tank mixes and rotation with herbicides possessing other modes of action are 
recommended to avoid weed resistance. The following directions apply to all uses of WC-DCB. Additional 
precautions and restrictions will be found in each specific use section.
Proactively implementing diversified weed control strategies to minimize selection for weed populations resistant to 
one or more herbicides is a best practice. A diversified weed management program may include the use of multiple 
herbicides with different sites of action and overlapping weed spectrum with or without tillage operations and/or
other cultural practices. Research has demonstrated that using the labeled rate and directions for use is important to 
delay the selection for resistance. The continued effectiveness of this product depends on the successful 
implementation of a weed resistance management program.
To aid in the prevention of developing weeds resistant to this product, users should:
•Scout fields before application to ensure herbicides and rates will be appropriate for the weed species and weed 
sizes present.
•Start with a clean field, using either a burndown herbicide application or tillage.
•Control weeds early when they are relatively small (less than 4 inches).
•Apply full rates of WC-DCB for the most difficult to control weed in the field at the specified time (correct weed 
size) to minimize weed escapes.
•Scout fields after application to detect weed escapes or shifts in control of weed species.
•Control weed escapes before they reproduce by seed or proliferate vegetatively.
•Report any incidence of non-performance of this product against a particular weed to your FMC representative, 
local retailer, or county extension agent.
•Contact your FMC representative, crop advisor, or extension agent to find out if suspected resistant weeds to 
these MOAs have been found in your region. DO NOT assume that each listed weed is being controlled by 
multiple sites of action. Products with multiple active ingredients are intended to broaden the spectrum of weeds 
that are controlled. Some weeds may be controlled by only one of the active ingredients in this product.
•If resistance is suspected, treat weed escapes with an herbicide having a site of action other than Group 4 and/or 
use nonchemical methods to remove escapes, as practical, with the goal of preventing further seed production.
•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.
Additionally, users should follow as many of the following herbicide resistance management practices as is 
practical:
•Use a broad-spectrum soil-applied herbicide with other sites of action as a foundation in a weed control program.
•Utilize sequential applications of herbicides with alternative sites of action.
•Rotate the use of this product with non-Group 4 herbicides.
•Avoid making more than two applications of WC-DCB and any other Group 4 herbicides within a single growing 
season unless mixed with an herbicide with a different site of action with an overlapping spectrum for the difficult-
to-control weeds.
•Incorporate non-chemical weed control practices, such as mechanical cultivation, crop rotation, cover crops and 
weed-free crop seeds, as part of an integrated weed control program.
•Use good agronomic principles that enhance crop development and crop competitiveness.
•Thoroughly clean plant residues from equipment before leaving fields suspected to contain resistant weeds.
•Manage weeds in and around fields, during and after harvest to reduce weed seed production.
INTEGRATED PEST MANAGEMENT
This product may be used as part of an Integrated Pest Management (IPM) program that can include biological, 
cultural, and genetic practices aimed at preventing economic pest damage. IPM principles and practices include 
field scouting or other detection methods, correct target pest identification, population monitoring, and treating 
when target pest populations reach locally determined action thresholds. Consult your state cooperative extension

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service, professional consultants or other qualified authorities to determine appropriate action treatment threshold 
levels for treating specific pest/crop systems in your area.
APPLICATION INFORMATION
UNLESS OTHERWISE SPECIFIED UNDER THE INDIVIDUAL USE HEADINGS OF THIS LABEL, THE 
FOLLOWING DIRECTIONS APPLY TO ALL CROP AND NONCROP USES OF WC-DCB. REFER TO INDIVIDUAL 
USE SECTIONS FOR ADDITIONAL PRECAUTIONS, RESTRICTIONS, APPLICATION RATES AND TIMINGS.
WC-DCB is a water dispersible formulation that can be applied using water or sprayable fluid fertilizer as the carrier. 
If a fluid fertilizer is to be used, a compatibility test (see COMPATIBILITY TEST) should be made prior to tank 
mixing.
It is the pesticide user's responsibility to ensure that all products are registered for the intended use. Read and 
follow the applicable restrictions and limitations and directions for use on all product labels involved in tank mixing. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture.
Ground or aerial application equipment which will give good spray coverage of weed foliage should be used.
Avoid disturbing (e.g. cultivating or mowing) treated areas for at least 7 days following application.
Application Instructions
WC-DCB can be applied to actively growing weeds as aerial, broadcast, band, or spot spray applications using 
water or sprayable fertilizer as a carrier. For WC-DCB application rates for control or suppression by weed type and 
growth stage see the Application Ratessection, table WC-DCB Application Rates for Control or Suppression by 
Weed Type and Growth Stage. For crop-specific application timing and other details, refer to Crop-specific 
Information. To avoid uneven spray coverage, WC-DCB must not be applied during periods of gusty wind or when 
wind is in excess of 15 mph. Avoid off- target movement. Use extreme care when applying WC-DCB to prevent 
injury to desirable plants and shrubs.
DO NOTtreat areas where either possible downward movement into the soil or surface washing may cause contact 
of WC-DCB with the roots of desirable plants such as trees and shrubs.
To avoid injury to desirable plants, equipment used to apply WC-DCB should be thoroughly cleaned (see 
PROCEDURE FOR CLEANING SPRAY EQUIPMENT) before reusing to apply any other chemicals.
All crop uses of WC-DCB are intended for a normal growing interval between planting and harvest. No crop rotation 
restrictions exist if normal harvest of treated crop has occurred. If this interval is shortened, such as in cover crops 
that will be plowed under, DO NOTfollow up with the planting of a sensitive crop.
Crops growing under stress conditions such as drought, poor fertility, or foliar damage due to hail, wind or insects, 
can exhibit various injury symptoms that may be more pronounced if herbicides are applied Consult your local or 
state authorities for possible application restrictions and advice concerning these and other special local use 
situations. Tank mix directions are for use only in states where the tank mix product and application site are 
registered.
Cultivation: 
DO NOTcultivate within 7 days after applying WC-DCB.
Application Rates
WC-DCB Application Rates for Control or Suppression by Weed Type and Growth Stage, (Use rate limitations are 
given in the Crop-specific Information Sections.)
Weed Type and Stage Rate of WC-DCBper Acre 
(OZ)
Dicamba Acid Equivalent Per 
Acre (Lbs.)
Annual1
Small, actively growing 6 to 12 0.2625 to 0.525
Established weed growth 12 to 17 0.525 to 0.7438
Biennial
Rosette diameter 1" to 3" Rosette 6 to 12 0.2625 to 0.525
Rosette diameter 3" or more 12 to 24 0.525 to 1.05
Bolting 24 1.05
Perennial
Top growth suppression 6 to 12 0.2625 to 0.525
Top growth control and root 12 to 24 0.525 to 1.05
Noted perennials (footnote 1 in 
Weed List) 24 1.05
Other perennials3 24 1.05

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Woody Brush & Vines4
Top growth suppression 11.5 to 24 0.5031 to1.05
Top growth control2,3 24 1.05
Stems and stem suppression3 24 1.05
1. Rates below 6 ounces per acre may provide control or suppression but should typically be applied with other herbicides tha 
are effective on the same species and biotype.
2. Species noted with footnote 2 in this table require tank mixes for adequate control.
3. DO NOTbroadcast apply more than 24 ounces per acre per application. Use the higher level of listed rate ranges when 
treating dense vegetative growth or perennial weeds with well established root growth.
4. Retreatment or tank mixtures may be necessary for best control. However, DO NOTexceed a total of 48 ounces of WC-
DCB per acre per year.
Additives
To improve postemergence weed control, agriculturally approved surfactants, sprayable fertilizers (urea ammonium 
nitrate, or ammonium sulfate), or crop oil concentrate may be added, particularly in dry growing conditions. (Refer to
the table in this section entitled “Additive Rate per Acre”)
Nitrogen Source:
Urea ammonium nitrate (UAN): Use 2 to 4 quarts of UAN (commonly referred to as 28%, 30%, or 32% nitrogen 
solution) per acre. DO NOTuse brass or aluminum nozzles when spraying UAN.
Ammonium sulfate (AMS): AMS at 2.5 pounds per acre may be substituted for UAN. Use high-quality AMS 
(spray grade) to avoid plugging of nozzles. Other sources of nitrogen are not as effective as those mentioned. 
FMC Corporation does not recommend applying AMS, if applied in less than 10 gallons per acre because of 
potential problems with precipitation in reduced volumes. Use AMS only if it has been demonstrated to be 
successful in local experience.
Nonionic Surfactants
The standard label recommendation is 1 pint of an 80% active nonionic spray surfactant per 100 gallons of water. 
For certain weeds, a higher spray surfactant rate is recommended.
Crop Oil Concentrate or Methylated Seed Oil
A crop oil concentrate must contain either a petroleum or vegetable oil base and must meet all of the following 
criteria:
be nonphytotoxic,
contain only EPA exempt ingredients,
provide good mixing quality in the jar test, and
be successful in local experience.
The exact composition of suitable products will vary; however, vegetable and petroleum oil concentrates should 
contain emulsifiers to provide good mixing quality. Highly refined vegetable oils have proven more satisfactory than 
unrefined vegetable oils.
For additional information, see Compatibility Test for Mix Components.
Adjuvants containing crop oil concentrates may be used in preplant, preemergence, and preharvest application, as 
well as in pastures and noncropland. DO NOTuse crop oil concentrate for postemergence in-crop applications 
unless specifically allowed in Crop-specific Information section of this label.
Additive Rate per Acre
Additive Rate per Acre
Nonionic Surfactant 1 to 2 pints per 100 gallons
AMS 2.5 pounds
UAN Solution 2 to 4 quarts
Crop Oil Concentrate 1 quart*
Methylated Seed Oil 1 quart*
*See manufacturer’s label for specific rate instructions.
Compatibility Test for Mix Components
Before mixing components always perform a compatibility jar test. For 20 gallons per acre spray volume, use 3.3 
cups (800 ml) of water. For other spray volumes, adjust accordingly. Only use water from the intended source at the 
source temperature.
Add components in the sequence indicated in the Mixing Order using 2 teaspoons for each pound or 1 teaspoon for 
each pint of label rate per acre.
Always cap the jar and invert 10 cycles between component additions.

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When the components have all been added to the jar, let the solution stand for 15 minutes. Evaluate the solution for 
uniformity and stability. The spray solution should not have free oil on the surface, nor fine particles that precipitate 
to the bottom, nor thick (clabbered) texture. If the spray solution is not compatible, repeat the compatibility test with 
the addition of a suitable compatibility agent. If the solution is then compatible, use the compatibility agent as 
directed on its label. If the solution is still incompatible, DO NOTmix the ingredients in the same tank.
MIXING INSTRUCTIONS
1. Water -Begin by agitating a thoroughly clean sprayer tank three-quarters full of clean water.
2. Agitation- Maintain constant agitation throughout mixing and application.
3. Inductor- If an inductor is used, rinse it thoroughly after each component has been added.
4. Products in PVA Bags- Place any product contained in water-soluble PVA bags into the mixing tank.
Wait until all water-soluble PVA bags have fully dissolved and the product is evenly mixed in the spray 
tank before continuing.
5. Water-dispersible products -(dry flowables, wettable powders, suspension concentrates, or suspo-
emulsions).
6. Water-soluble products- (including, WC-DCB).
7. Emulsifiable concentrates- (including, oil concentrate when applicable).
8. Water-soluble additives- (including, AMS or UAN when applicable).
9. Remaining quantity of water. Maintain constant agitation during application.
TANK MIX PARTNERS/COMPONENTS
It is the pesticide user’s responsibility to ensure that all products are registered for the intended use. Read and follow 
the applicable restrictions and limitations and directions for use on all product labels involved in tank mixing. Users 
must follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.
The suitable registered herbicide products may be applied with WC-DCB according to the tank mixing instructions in 
this label and respective product labels. Observe all instructions, crop restrictions, mixing directions, application 
precautions, replanting directions, rotational crop guidelines and other label information of each product when tank 
mixing with WC-DCB.
See section Crop-specific Information for more details.WC-DCB may also be used in tank mixtures with foliar applied 
suitably registered insecticides, herbicide and fungicide. It is the pesticide user’s responsibility to ensure that all 
products in the listed mixtures are registered for the intended use. Users must follow the most restrictive directions for 
use and precautionary statements of each product in the tank mixture.
DO NOTapply WC-DCB in tank mixtures with products containing the active ingredient insecticide chlorpyrifos. 
DO NOT exceed a total of 48 ounces of WC-DCB per acre per year.
Physical incompatibility, reduced weed control, or crop injury may result from mixing WC-DCB with other pesticides 
(fungicides, herbicides, insecticides, or miticides), additives, or fertilizers. Consult your state cooperative extension
service, professional consultants or other qualified authorities when using products in a tank mix with WC-DCB.
WEED CONTROL INFORMATION
Species Controlled or Suppressed by WC-DCB, including ALS resistant and Triazine-resistant Biotypes, 
when used according to label directions.
ANNUALS
Alkanet
Amaranth, Palmer, Powell, 
spiny
Aster. slender 
Bedstraw, catchweed 
Beggarweed, Florida 
Broomweed, common 
Buckwheat, tartary, wild 
Buffalobur
Burclover, California 
Burcucumber
Buttercup, com, creeping, 
roughseed, Western field 
Carpetweed
Catchfly, nightflowering 
Chamomile, corn 
Goosefoot. nettleleaf 
Hempnettle
Henbit
Jacob's Ladder 
Jimsonweed
Knawel (German Moss) 
Knotweed, prostrate 
Kochia
Ladysthumb
Lambsquarters, common 
Lettuce, miner's, prickly 
Mallow, common, Venice 
Marestail(horseweed) 
Mayweed
Pusley, Florida 
Radish, wild
Ragweed, common, giant 
(buffaloweed), lance-leaf 
Rocket, London, yellow 
Rubberweed, bitter (bitterweed)
Salsify 
Senna. coffee
Sesbania, hemp 
Shepherd's purse 
Sicklepod
Sida, prickly (teaweed) 
Smartweed, green, 
Pennsylvania 
Sneezeweed, bitter

9 
 
1,
Chervil, Bur 
Chickweed, common 
Clovers
Cockle, corn, cow, white 
Cocklebur, common 
Copperleaf, hophombeam 
Cornflower (Bachelor button) 
Croton, tropic, woolly
Daisy, English 
Dragonhead, American 
Eveningprimrose, cutleaf 
Falseflax, smallseed 
Fleabane, annual 
Flixweed
Fumitory
Morningglory, ivyleaf, tall 
Mustard, black, blue, tansy, 
treacle, tumble, wild, yellowtops
Nightshade, black, cutleaf 
Pennycress, field (fanweed, 
Frenchweed, stinkweed) 
Pepperweed, Virginia (pepper-
grass)
Pigweed, prostrate, redroot, 
(carelessweed), rough, smooth, 
tumble 
Pineappleweed
Poorjoe
Poppy, red-horned 
Puncturevine 
Purslane, common
Sowthistle, annual, spiny 
Spanish needles 
Spikeweed, common 
Spurge, prostrate, leafy 
Spurry, corn
Starbur, bristly 
Starwort, little 
Sumpweed, rough
Sunflower, common (wild), 
volunteer
Thistle, Russian 
Velvetleaf Waterhemp
Waterprimrose, winged 
Wormwood
BIENNIALS
Burdock, common
Carrot, wild (Queen Anne's lace)
Cockle, white 
Eveningprimrose, common 
Geranium, Carolina
Gromwell
Knapweed, diffuse, spotted 
Mallow, dwarf
Plantain, bracted 
Ragwort, tansy 
Starthistle, yellow
Sweetclover 
Teasel
Thistle, bull, milk, musk,
plumeless
PERENNIALS
Alfalfa1
Artichoke, Jerusalem 
Aster, spiny, white heath 
Bedstraw, smooth 
Bindweed, field, hedge 
Bluewood, Texas
Bursage, woollyleaf1(Bur,
ragweed, povertyweed) 
Buttercup, tall 
Campion, bladder
Chickweed, field, mouseear 
Chicorr1
Clover , hop 
Dandelion1
Dock, broadleaf (bitterdock),
curly
Dogbane, hemp 
Dogfennel1 (Cypressweed) 
Fern, bracken
Garlic, wild
Goldenrod, Canada, Missouri 
Goldenweed, common 
Hawkweed
Henbane, black 
Horsenettle, Carolina lronweed
Knapweed, black, diffuse, 
Russian1spotted 
Milkweed, common,
honeyvine, 
Western whorled Nettle, stinging
Nightshade, silverleaf (White
horsenettle) 
Onion, wild
Plantain, broadleaf, buckhorn 
Pokeweed
Ragweed, Western 
Redvine
Sericia, lespedeza 
Smartweed, swamp
Snakeweed, broom Sorrel1red 
(sheep sorrel) 
Sowthistle1, perennial
Spurge, leafy 
Sundrop
Thistle, Canada, 
Scotch
Toadflex, dalmatian 
Tropical soda apple 
Trumpetcreeper (buckvine) 
Vetch
Waterhemlock, spotted
Waterprimrose, creeping 
Woodsorrel 1creeping, yellow
Wormwood, Louisiana 
Yankeeweed
Yarrow common1
WOODY SPECIES
Alder 
Ash 
Aspen
Basswood 
Beech
Birch 
Blackberry
Blackgum2
Cedar" 
Hawthorn (Thornapple)2
Hemlock
Hickory
Honeylocust 
Honeysuckle 
Hornbeam 
Huckleberry 
Huisache 
Ivy, Poison 
Plum, sand (Wild plum)2
Poplar
Rabbitbrush
Redcedar, Eastern
Rose2, McCartney, multiflora 
Sagebrush, fringed2 
Sassafras
Serviceberry 
Spicebush

10 
 
Cherry
Chinquapin 
Cottonwood
Creosotebush2
Cucumbertree 
Oewberry2
Dogwood2
Elm Grape
Kudzu
Locust, black 
Maple 
Mesquite Oak
Oak, poison 
Olive, Russian
Persimmon, Eastern 
Pine
Spruce
Sumac 
Sweetgum2
Sycamore 
Tarbush Willow
Witchhazel 
Yaupon2
Yucca
1.Noted perennials may be controlled using WC-DCB at rates lower than those specified for other listed 
perennial weeds; see Rates and Timingsfor specific use.2.Growth suppression
CROP ROTATION
The interval between application and planting rotational crop is given below. Always exclude counting days when the 
ground is frozen. Planting at intervals less than specified below may result in crop injury. Moisture is essential for the 
degradation of this herbicide in soil. If dry weather prevails, use cultivation to allow herbicide contact with moist soil.
•Planting/replanting restrictions for WC-DCB applications of 17 oz/A (0.7438 lb. ae/A) or less.No rotational 
cropping restrictions apply at 120 days or more following application. Additionally, for annual crop uses in this 
label including corn, cotton, sorghum, and soybean, follow the preplant use directions in crop-specific Information. 
For barley, oat, wheat, and other grass seedlings, the interval between application and planting is 15 days per 6 
oz/A (0.2625 lb. ae/A)applied east of the Mississippi River and 22 days per 6 oz/A (0.2625 lb. ae/A)west of the 
Mississippi River.
•Planting/replanting restrictions for applications of more than 17 oz (0.7438 lb. ae/A) and up to 48 ounces of WC-
DCB per acre.Corn, sorghum, cotton (east of the Rocky Mountains) and all other crops grown in areas with 30" or 
more of annual rainfall may be planted 120 days or more after application. Barley, oat, wheat, and other grass 
seedlings, may be planted if the interval from application to planting is 30 days per 12 oz/A (0.525 lb. ae/A)(east 
of the Mississippi River) and 45 days per 12 oz/A (0.525 lb. ae/A) west of the Mississippi River. For all other crops 
in areas with less than 30" of annual rainfall, the interval between application and planting is 180 days or more.
•Dicamba Tolerant Cotton or Dicamba Tolerant Soybeans may be planted at any time following an application of 
WC-DCB
CROP SPECIFIC INFORMATION
ASPARAGUS
Apply WC-DCB to emerged and actively growing weeds in 40 to 60 gallons of diluted spray per treated acre 
immediately after cutting the field, but at least 24 hours before the next cutting. 
Multiple applications may be made per growing season.
If spray contacts emerged spears, crooking (twisting) of some spears may result. If such crooking occurs. discard 
affected spears.
Rates: Apply 6 to 12 oz/A (0.2625 – 0.525 lb. ae/A) of WC-DCB to control annual sowthistle, black mustard, 
Canada and Russian thistle, and redroot pigweed (carelessweed).
Apply 12 oz/A (0.525 lb. ae/A) of WC-DCB to control common chick-weed, field bindweed, nettleleaf goosefoot, and 
wild radish.
Restrictions
DO NOT exceed 12 oz/A (0.525 lb. ae/A) of WC-DCB in a single application.
Multiple applications may be made per growing season. DO NOTexceed a total of 12 oz (0.525 lb. ae) of WC-DCB
per treated acre, per crop year.
DO NOTharvest prior to 24 hours after treatment. 
DO NOTuse in the Coachella Valley of California.
Asparagus Tank Mixes
Apply 6 to 12 oz/A (0.525 lb. ae/A) of WC-DCB with glyphosate or 2,4-D to improve control of Canada thistle and 
field bindweed. It is the pesticide user’s responsibility to ensure that all products in the listed mixtures are registered 
for the intended use. Users must follow the most restrictive directions for use and precautionary statements of each 
product in the tank mixture.

11 
 
Between Crop Applications (Fallow)
PREPLANT DIRECTIONS (POSTHARVEST, FALLOW. CROP STUBBLE, SET-ASIDE, Prevent Plant) FOR 
BROADLEAF WEED CONTROL
WC-DCB can be applied either postharvest in the fall, spring, or summer during the fallow period or to crop 
stubble/set-aside acres. Apply WC-DCB as a broadcast or spot treatment to emerged and actively growing weeds 
after crop harvest (postharvest) and before a killing frost or in the fallow cropland or crop stubble the following spring 
or summer.
See Crop Rotational Restrictions in the Restrictions and Limitations section for the required interval between 
application and planting to prevent crop injury.
Rates and Timings
Apply 3 to 24 oz/A (0.1313 – 1.05 lb. ae/A) of WC-DCB. Refer to the “Application Rates” section to determine use 
rates for specific targeted weed species. For best performance, apply WC-DCB when annual weeds are less than 6" 
tall, when biennial weeds are in the rosette stage and to perennial weed regrowth in late summer or fall following a 
mowing or tillage treatment. The most effective control of upright perennial broadleaf weeds such as Canada thistle 
and Jerusalem artichoke occurs if WC-DCB is applied when the majority of weeds have at least 4" to 6" of regrowth 
or for weeds such as field bindweed and hedge bindweed that are in or beyond the full bloom stage.
Avoid disturbing treated areas following application. Treatments may not kill weeds that develop from seed or 
underground plant parts such as rhizomes or bulblets, after the effective period for WC-DCB. For seedling control, a 
follow-up program or other cultural practices could be instituted. For small grain in-crop uses of WC-DCB,refer to 
the small grain section for details.
DO NOTexceed 24 oz/A (0.1313 – 1.05 lb. ae/A) of WC-DCB in a single application or season.
Between Crop (Fallow) Tank Mixes
In tank mixes with other suitable registered herbicides, apply 3 to 12 oz/A (0.1313 – 0.525 lb./ ae/A) of WC-DCB for 
control of annual weeds, or 12 to 24 oz/A (0.525 – 1.05 lb. ae/A) of WC-DCB for control of biennial and perennial 
weeds. It is the pesticide user’s responsibility to ensure that all products in the listed mixtures are registered for the 
intended use. Users must follow the most restrictive directions for use and precautionary statements of each product 
in the tank mixture.
CORN (Field, Pop, Seed, and Silage)
Direct contact of WC-DCB with corn seed must be avoided. If corn seeds are less than 1.5" below the soil surface, 
delay application until corn has emerged.
Applications of WC-DCB to corn during periods of rapid growth may result in temporary leaning. Corn will usually 
become erect within 3 to 7 days. Cultivation should be delayed until after corn is growing normally to avoid 
breakage.
Corn may be harvested or grazed for feed once the crop has reached the ensilage (milk) stage or later in 
maturity.
DO NOTexceed 12 oz/A (0.525 lb. ae/A in a single application. Up to 2 applications of WC-DCB may be made 
during a growing season. Sequential applications must be separated by 2 weeks or more. DO NOTexceed a total of 
17 oz/A (0.7438 lb. ae/A) of WC-DCB per crop year.
DO NOTapply WC-DCB to seed corn or popcorn without first verifying with your local seed corn company (supplier) 
the selectivity of WC-DCB on your inbred line or variety of popcorn. This precaution will help avoid potential injury of 
sensitive varieties.
Avoid using crop oil concentrates or methylated seed oil after crop emergence as crop injury may result. Use of crop 
oil concentrates or methylated seed oil are recommended only in dry conditions when corn is less than 5" tall and 
when applying WC-DCB alone or tank mixed with atrazine.
Use of sprayable fluid fertilizer as the carrier is not recommended for applications of WC-DCB made after corn 
emergence.
WC-DCB is not registered for use on sweet corn.
Preplant and Preemergence Application in No-Tillage Corn
Rates:Apply 12 oz/A (0.525 lb. ae/A) of WC-DCB on medium- or fine-textured soils containing 2.5% or greater 
organic matter. Use 6 oz/A (0.2625 lb. ae/A) of WC-DCB on coarse soils (sand, loamy sand, and sandy loam) or 
medium- and fine-textured soils with less than 2.5% organic matter.
Timing:WC-DCB can be applied to emerged weeds before, during, or after planting a corn crop. When planting into 
a legume sod (e.g. alfalfa or clover), apply WC-DCB after 4" to 6" of regrowth has occurred.

12 
 
Preemergence Application in Conventional or Reduced Tillage Corn
Rates:Apply 12 oz (0.525 lb. ae) of WC-DCB per treated acre to medium- or fine-textured soils that contain 2.5% 
organic matter or more. DO NOTapply to coarse-textured soils (sand, loamy sand, or sandy loam) or any soil with 
less than 2.5% organic matter until after corn emergence (see Early Postemergence uses below).
Timing:WC-DCB may be applied after planting and prior to corn emergence. Preemergence application of WC-
DCB does not require mechanical incorporation to become active. A shallow mechanical incorporation is 
recommended if the application is not followed by adequate rainfall or sprinkler irrigation. Avoid tillage equipment 
(e.g. drags, harrows) that concentrates treated soil over seed furrow, as seed damage could result.
Preemergence control of cocklebur, jimsonweed, and velvetleaf may be reduced if conditions such as low 
temperature or lack of soil moisture cause delayed or deep germination of weeds.
Early Postemergence Application in all Tillage Systems
Rates: Apply 12 oz (0.525 lb. ae) of WC-DCB per treated acre. Reduce the rate to 6 oz (0.2625 lb. ae) of WC-DCB
per treated acre for corn grown on coarse-textured soils (sand, loamy sand, and sandy loam).
Timing: Apply between corn emergence and the 5-leaf stage or 8" tall, whichever occurs first. Refer to Late 
Postemergence Application if the sixth true leaf is emerging from whorl or the corn is greater than 8" tall.
Late Postemergence Application
Rate: Apply 6 oz (0.2625 lb. ae) of WC-DCB per treated acre.
Timing: Apply WC-DCB from 8" to 36" tall corn or 15 days before tassel emergence, whichever comes first. For best 
performance, apply when weeds are less than 3" tall.
Apply directed spray when com leaves prevent proper spray coverage, sensitive crops are growing nearby, or tank 
mixing with 2,4-D.
DO NOTapply WC-DCBwhen soybeans are growing nearby if any of these conditions exist:
•corn is more than 24" tall
•soybean are more than 10" tall
•soybean have begun to bloom
Corn Tank Mixes and Sequential Uses
When using tank mix or sequential applications with WC-DCB, always follow the companion product label to 
determine specific use rates by soil types, weed species, and weed or crop growth stage. 
Apply WC-DCB prior to, in tank mix with, or after other suitable registered herbicides. Observe all instructions, crop 
restrictions, mixing directions, application precautions, replanting directions, rotational crop guidelines and other 
label information of each product when tank mixing with WC-DCB or sequential applications. It is the pesticide 
user’s responsibility to ensure that all products in the listed mixtures are registered for the intended use. Users must 
follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.
Physical incompatibility, reduced weed control, or crop injury may result from mixing WC-DCB with other pesticides, 
additives, or fertilizers. Consult your state cooperative extension service, professional consultants or other qualified 
authorities when using products in a tank mix with WC-DCB.
See table entitled “Specific Guidelines for Tank Mixes or Sequential Use Programs”for additional limitations or 
restrictions that apply for tank mix or sequential use programs with these products.
Specific Guidelines for Tank Mixes or Sequential Use Programs
Tank Mix Partner Rate Per Acre
Herbicides containing 
nicosulfuron or 
primisulfuron-methyl 
When tank mixing, applications immediately following extreme day or night temperature 
fluctuations or applications when daytime temperatures DO NOTexceed 50° F may 
result in decreased weed control or crop injury. Delay application until the temperatures 
warm and both weeds and crop resume normal growth.
2,4-D
To provide maximum crop safety after corn emergence, use this tank mix only after 
corn is greater than 8" tall and when application can be made with drop pipes that 
direct spray beneath corn leaves and away from the whorl of the com. The maximum 
rate of 2,4-D in this tank mix is 0.125 pounds of acid equivalent per acre.

13 
 
Herbicides containing
dicamba or dicamba + 
atrazine
Tank mixes with these products that contain dicamba must not exceed a total 
combined rate of 0.50 pounds of dicamba acid equivalent per acre (0.25 pound on 
coarse-textured soils or on any soil when corn is greater than 8" tall).
Sequential applications of these products must be separated by a minimum of 2 weeks 
(unless the combined rate is less than 0.5 pounds of dicamba acid equivalent and corn 
is 8" tall or less) and must not exceed a combined total of 0.75 pounds dicamba acid 
equivalent per acre for in-crop use.
COTTON
Preplant Applications
Apply up to 6 oz/A (0.2625 lb. ae) of WC-DCB per acre to control emerged broadleaf weeds prior to planting cotton 
in conventional or conservation tillage systems. For best performance, apply WC-DCB when weeds are in the 2 to 4 
leaf stage and rosettes are less than 2" across. Following application of WC-DCB and a minimum accumulation of 
1" of rainfall or overhead irrigation, a waiting interval of 21 days is required per 6 oz (0.2625 lb. ae) per acre or less. 
These intervals must be observed prior to planting cotton.
Dicamba Tolerant (DT) Cotton may be planted any time after an application of WC-DCB
DO NOT exceed 6 oz/A (0.2625 lb.ae/A).
DO NOTapply preplant to cotton west of the Rockies.
DO NOTmake WC-DCBpreplant applications to cotton in geographic areas with average annual rainfall less than 
25".
If applying a spring preplant treatment following application of a fall preplant (postharvest) treatment, then the 
combination of both treatments must not exceed 48 oz/A (2.1 lbs. ae/A).
Cotton Tank Mixes
For control of grasses or additional broadleaf weeds, WC-DCB may be tank mixed with suitable registered 
herbicide containing prometryn, paraquat, and glyphosate. It is the pesticide user’s responsibility to ensure that 
all products in the listed mixtures are registered for the intended use. Users must follow the most restrictive 
directions for use and precautionary statements of each product in the tank mixture.
GRASS GROWN FOR SEED
Apply 6 to 12 oz/A (0.2625 to 0.525 lb. ae/A) of WC-DCB per treated acre on seedling grass after the crop reaches 
the 3 to 5 leaf stage. Apply up to 24 oz/A (1.05 lbs. ae/A) of WC-DCB on established perennial grass. For best 
performance, apply WC-DCB when weeds are in the 2 to 4 leaf stage and rosettes are less than 2" across. Use the 
higher level of listed rate ranges when treating more mature weeds or dense vegetative growth.
To suppress annual grasses such as brome (downy and ripgut), rattail fescue, and windgrass, apply up to 24 oz/A 
(1.05 lbs. ae/A) of WC-DCB per treated acre in the fall or late summer after harvest and burning of established grass 
seed crops. Applications should be made immediately following the first irrigation when the soil is moist and before 
weeds have more than 2 leaves.
DO NOT exceed 24 oz/A (1.05 lb. ae/A) of WC-DCB in a single application.
DO NOT exceed 48 oz/A (2.1 lb. ae/A) of WC-DCB per season.
DO NOTapply WC-DCB after the grass seed crop begins to joint.
Refer to the Pasture, Hay, Rangeland, and Farmstead section for grazing and feeding restrictions.
Grass Seed Tank Mixes
WC-DCB may be applied in tank mixes with suitable registered herbicides containing MCPA amine, 2,4-D amine or 
ester, clopyralid, clopyralid + 2, 4-D, tribenuron-methyl (e.g. Express® herbicide (with TotalSol® soluble granules)
and dicamba. It is the pesticide user’s responsibility to ensure that all products in the listed mixtures are registered 
for the intended use. Users must follow the most restrictive directions for use and precautionary statements of each
product in the tank mixture.
Refer to the Pasture, Hay, Rangeland, and Farmstead section for grazing and feeding restrictions.
PROSO MILLET
For use only within Colorado, Nebraska, North Dakota, South Dakota, and Wyoming.
WC-DCB combined with 2,4-D will provide control or suppression of the annual broadleaf weeds listed in the “Weed 
Control Information” section of this label.

14 
 
Apply 3 oz/A (0.1313 lb. ae/A) of WC-DCB with 0.375 pounds ai/A of 2,4-D. Apply the tank mix of a suitable 
registered herbicide containing dicamba + 2.4-D as a broadcast or spot treatment to emerged and actively growing 
weeds and when prose millet is in the 2 to 5 leaf stage. Use directions for dicamba and 2,4-D products vary with 
manufacturers. Refer to a dicamba and 2,4-D product with labeling consistent with the crop stage timing for the 
dicamba containing herbicide. Some types of proso millet may be affected adversely by a tank mix of dicamba + 2,4-
D.
DO NOT exceed 3 oz/A (0.1313 lb. ae/A) per single application.
DO NOT exceed 3 oz/A (0.1313 lb. ae/A) per season.
DO NOTapply unless possible proso millet crop injury will be acceptable.
Restrictions for proso millet that is grazed or cut for hay are indicated in Table 3.Timing Restrictions for Lactating 
Dairy Animals Following Treatment in Pasture, Hay, Rangeland, and Farmstead section of this label.
PASTURE, HAY, RANGELAND, AND FARMSTEAD (NONCROPLAND)
WC-DCB may be used on pasture, hay, rangeland, and farmstead (non-cropland) (including fencerows and non-
irrigation ditchbanks) for control or suppression of broadleaf weed and brush species listed in the “Weed Control 
Information” section of this label. 
WC-DCB may also be applied to non-cropland areas to control broadleaf weeds in noxious weed control programs, 
districts, or areas including broadcast or spot treatment of roadsides and highways, utilities, railroad, and pipeline 
rights-of-way. Noxious weeds must be recognized at the state level, but programs may be administered at state, 
county, or other level.
WC-DCB uses described in this section also pertain to small grains (forage sorghum, rye, sudangrass, barley, 
triticale, or wheat) grown for pasture use only.
Some perennial weeds may be controlled with lower rates of either WC-DCB or WC-DCB plus 2,4-D (refer to the 
“Application Rates” section). It is the pesticide user’s responsibility to ensure that all products in the listed mixtures 
are registered for the intended use. Users must follow the most restrictive directions for use and precautionary 
statements of each product in the tank mixture.
Rates and Timing
Refer to the “Application Rates” section for rate selection based on targeted weed or brush species. Some weed 
species will require tank mixes for adequate control.
DO NOTbroadcast apply more than 24 oz/A (1.05 lbs. ae/A) of WC-DCB in a single application.
DO NOTbroadcast apply more than 24 oz/A (1.05 lbs. ae/A) of WC-DCB per season.
Retreatments may be made as needed; however, DO NOTexceed a total of 24 oz/A (0.1.05 lb. ae/A) of WC-DCB per 
treated acre during a growing season.
Crop-Specific Restrictions and Limitations
DO NOTapply more than 12 oz/A (0.525 lb. ae/A) of WC-DCB per acre to cereal grains grown for pasture.
DO NOT apply to cereal grains or pastures under seeded with desirable broadleaf crops
Newly seeded areas may be severely injured if more than 12 oz/A (0.525 lb. ae/A) of WC-DCB is applied per acre.
Established grass crops growing under stress can exhibit various injury symptoms that may be more pronounced if 
herbicides are applied. Bentgrass, carpetgrass, buffalo-grass, and St. Augustinegrass may be injured if more than 12 
oz/A (0.525 lb. ae/A) of WC-DCB is applied per acre. Usually colonial bentgrasses are more tolerant than creeping 
types. Velvetgrasses are most easily injured. Treatments will kill or injure alfalfa, clovers, lespedeza, wild winter peas, 
vetch, and other legumes.
There are no grazing restrictions for animals other than lactating dairy animals. Table 3 lists the timing restrictions for 
grazing or harvesting hay from treated fields.
Table 3. Timing Restrictions for Lactating Dairy Animals Following Treatment
WC-DCB Rate per Treated Acre Days Before Grazing Days Before Hay Harvest
Up to 12 oz/A (0.525 lb. ae/A) 7 davs 37 days
Up to 24 oz/A (1.05 lbs. ae/A) 21 days 51 days
Up to 48 oz/A (2.1 lbs. ae/A) 40 days 70 days
WC-DCB can be applied using water, oil in water emulsions including invert systems, or sprayable fluid fertilizer as a 
carrier (refer to the Compatibility Test for Mix Components).

15 
 
To prepare oil in water emulsions, half-fill spray tank with water, then add the appropriate amount of emulsifier. With 
continuous agitation, slowly add the herbicide and then the oil (such as diesel oil or fuel oil) or a premix of oil plus 
additional emulsifier to spray tank. Complete filling of spray tank with water. Maintain vigorous agitation during spray 
operation to prevent oil and water from forming separate layers.
WC-DCB may be applied broadcast using either ground or aerial application equipment.
Aerial Application
Spray Volume. Use 2 to 40 gallons of diluted spray per treated acre in a water-based carrier.
Ground Application
Spray Volume. Use 3 to 600 gallons of diluted spray per treated acre. The volume of spray applied will depend 
on the height, density, and type of weeds or brush being treated and on the type of equipment being used.
Spot Treatments. WC-DCB may be applied to individual clumps or small areas of undesirable vegetation using 
handgun or similar types of application equipment. Apply diluted sprays to allow complete wetting (up to runoff) 
of foliage and stems.
CUT SURFACE TREATMENTS
WC-DCB may be applied as a cut surface treatment for control of unwanted trees and prevention of sprouts of cut 
trees.
Rate:Mix 30 to 90 oz (1.3125 to 3.9375 lbs. ae) WC-DCB with 1-gallon water to create the application solution. Use
the lower dilution rate when treating difficult-to-control species.
For Frill or Girdle Treatments: Make a continuous cut or a series of overlapping cuts using an axe to girdle tree 
trunk. Spray or paint the cut surface with the solution.
For Stump Treatments: Spray or paint freshly cut surface with the water mix. The area adjacent to the bark 
should be thoroughly wet.
NOTE: For more rapid foliar effects, 2,4-D may be added to the solution.
APPLICATIONS FOR CONTROL OF DORMANT MULTIFLORA ROSE
WC-DCB can be applied when plants are dormant as a spot treatment to the soil or as a Lo-Oil basal bark treatment 
using an oil-water emulsion solution.
Spot treatments. Spot treatment applications of WC-DCB should be applied directly to the soil as close as 
possible to the root crown but within 6" to 8" of the crown. On sloping terrain, apply WC-DCB to the uphill side 
of the crown. DO NOTapply when snow or water prevents applying WC-DCB directly to the soil. The use rate 
of WC-DCB depends on the canopy diameter of the multiflora rose.
Examples:Use 0.18, 0.72, or 1.7 oz (0.0079, 0.0315, or 0.0744 lb. ae) of WC-DCB respectively, for 5, 10, or 15 feet 
canopy diameters.
Lo-Oil basal bark treatments. For Lo-Oil basal bark treatments, apply WC-DCB to the basal stem region from the 
ground line to a height of 12" to 18". Spray until runoff, with special emphasis on covering the root crown. For 
best results, apply WC-DCB when plants are dormant. DO NOTapply after bud break or when plants are showing 
signs of active growth. DO NOTapply when snow or water prevents applying WC-DCB to the ground line.
To prepare approximately 2 gallons of a Lo-Oil spray solution:
1. Combine 1.5 gallons of water, 1 ounce of emulsifier, 12 oz (0.525 lb. ae) of WC-DCB, and 2.5 pints of No. 2 
diesel fuel.
2. Adjust the amounts of materials used proportionately to the amount of final spray solution desired.
DO NOTexceed 8 gallons of spray solution mix applied per acre, per year.
Pasture Tank Mixes
WC-DCB may be applied in tank mixes with other suitable registered herbicides It is the pesticide user’s responsibility 
to ensure that all products in the listed mixtures are registered for the intended use. Users must follow the most 
restrictive directions for use and precautionary statements of each product in the tank mixture.
CONSERVATION RESERVE PROGRAM (CRP)
WC-DCB may be used on both newly seeded and established grasses grown in Conservation Reserve or federal 
Set-Aside Programs. Treatments of WC-DCB will injure or may kill alfalfa, clovers, lespedeza, wild winter peas, 
vetch, legumes, and other desirable broadleaf plants.

16 
 
Newly Seeded Areas
WC-DCB may be applied either preplant or postemergence to newly seeded grasses or small grains including
barley, oats, rye, sudangrass, wheat, or other grain species grown as a cover crop.
Postemergence applications may be made after seedling grasses exceed the 3-leaf stage. Rates of WC-DCB
greater than12 ounces per treated acre may severely injure newly seeded grasses.
Preplant applications may injure new seedlings if the interval between application and grass planting is less than 45 
days per 12 oz (0.525 lb. ae) of WC-DCB applied per treated acre west of the Mississippi River or 20 days per 12 
oz/A (0.525 lb. ae/A) applied east of the Mississippi River.
Established Grass Stands
Established grass stands are perennial grasses planted one or more seasons prior to treatment. Certain species 
(bentgrass. carpetgrass, smooth brome, buffalograss, or St. Augustine grass) may be injured when treated with 
more than 12 ounces of WC-DCB per treated acre. When applied at specified rates. WC-DCB will control many 
annual and biennial weeds and provide control or suppression of many perennial weeds.
Rates and Timings:Apply 3 to 24 oz/A (0.1313 to 1.05 lb. ae/A) of WC-DCB. Refer tothe Application Information 
Section, Additive Rate per Acretable for rates of various additives.WC-DCB may be tank mixed or applied 
sequentially with other suitably registered products labeled for use in Conservation Reserve Programs
DO NOT exceed 24 oz/A (1.05 lb. ae/A) of WC-DCB in a single application.
Retreatments may be made as needed; however, DO NOTexceed a total of 48 oz (2.1 lb. ae/A) of WC-DCB per 
acre.
CEREAL GRAINS 
Not under seeded to legumes (fall- and spring-seeded barley, oat, triticale and wheat)
WC-DCB combinations with suitable registered tank mix partners will provide control or suppression of the annual 
broadleaf weeds listed in the “Weed Control Information” section of this label. For improved control of listed weeds, 
tank mix WC-DCB with one or more of suitable registered herbicides. WC-DCB used in a tank mix with other 
herbicides offers the best spectrum of weed control and herbicide tolerant or resistant weed management. Refer to 
the specific section crop for WC-DCB application rate and timing.
For applications prior to weed emergence or when sulfonylurea-resistant weeds are present or suspected, tank mix 
a minimum of 2 oz (0.0875 lb. ae) of WC-DCB per treated acre with a non-sulfonylurea herbicide including 2,4-D or 
MCPA. Tank mixing WC-DCB with these products will offer more consistent control of sulfonylurea-resistant weeds.
Additives:
When tank mixing WC-DCB with suitable registered sulfonylurea use 1 to 4 pints of an agriculturally approved 
surfactant (containing at least 80% active ingredient) per 100 gallons of spray or not more than 0.25 to 0.5% by 
volume. Use the highest rate of surfactant when using the lower rate ranges of the tank mix or when treating more 
mature and difficult to control weeds or dense vegetative growth. It is the pesticide user’s responsibility to ensure 
that all products in the listed mixtures are registered for the intended use. Users must follow the most restrictive 
directions for use and precautionary statements of each product in the tank mixture.
Refer to the specific crop sections below for use rates. When treating difficult to control weeds such as kochia, wild 
buckwheat, cow cockle, prostrate knotweed, Russian thistle, and prickly lettuce or when dense vegetative growth 
occurs, use the 2 to 3 oz (0.0875 to 0.1313 lb. ae) WC-DCB per acre.
Timings:
Apply WC-DCB before, during, or after planting small grains. See specific small grain crop uses below for maximum 
crop stage. For best performance, apply WC-DCB when weeds are in the 2 to 3 leaf stage and rosettes are less 
than 2" across. Applying WC-DCB to small grains during periods of rapid growth may result in crop leaning. This 
condition is temporary and will not reduce crop yields.
Applications to small grains may be made with aerial applications with 1 gallon of water or more per acre. Where 
dense foliage is present, 2 to 3 gallons of water per acre should be used.
Restrictions for small grain areas that are grazed or cut for hay are indicated in Table 3 inPasture, Hay, 
Rangeland, and Farmstead section of this label.
CEREAL GRAINS: Barley (fall- and spring-seeded)
Early Season Applications
Apply 1.5 to 3 oz/A (0.0656 to 0.1313 lb. ae/A) of WC-DCB to fall-seeded barley prior to the jointing stage. Apply 1.5 
to 2 ounces of WC-DCB before spring-seeded barley exceeds the 4-leaf stage.

17 
 
NOTE:For spring barley varieties that are seeded during the winter months or later, follow the rates and timings 
given for spring-seeded barley.
DO NOTtank mix WC-DCB with 2,4-D in early season applications on spring-seeded barley. 
PREHARVEST APPLICATIONS
WC-DCB can be used to control weeds that may interfere with harvest of fall- and spring- seeded barley. Apply 6 oz
(0.2625 lb. ae) of WC-DCB per acre as a broadcast or spot treatment to annual broadleaf weeds when barley is in 
the hard dough stage and the green color is gone from the node (joints) of the stem. Best results will be obtained if 
application can be made when weeds are actively growing, but before weeds canopy.
A waiting interval of 7 days is required before harvest.
DO NOTuse preharvest-treated barley for seed unless a germination test is performed on the seed with an 
acceptable result of 95% germination or better.
For control of additional broadleaf weeds or grasses, WC-DCB may be tank mixed with other herbicides, such as 
2,4-D, that are labeled for preharvest uses in barley.
DO NOTmake preharvest applications in California. 
Barley Tank Mixes
1. WC-DCB may be applied in tank mixes with other suitable registered herbicides... It is the pesticide user’s 
responsibility to ensure that all products in the listed mixtures are registered for the intended use. Users must 
follow the most restrictive directions for use and precautionary statements of each product in the tank mixture.
DO NOTuse low rates of sulfonylureas containing products on more mature weeds or on dense vegetative 
growth.
CEREAL GRAINS: OAT (fall- and spring-seeded)
Early Season Applications 
Apply 1.5 to 3 oz/A (0.0656 to 0.1313 lb. ae/A) of WC-DCB to fall-seeded oat prior to the jointing stage. Apply 1.5 to 
3 oz/A (0.0656 to 0.1313 lb. ae/A) of WC-DCB before spring-seeded oat exceeds the 5-leaf stage.
WC-DCB may be tank mixed with other suitable registered herbicides, including MCPA amine or ester, for 
applications in oat.
DO NOTtank mix WC-DCB with 2,4-D in oat.
DO NOT exceed 3 oz/A (0.1313 lb. ae/A) of WC-DCB in a single application or crop season.
CEREAL GRAINS: TRITICALE (fall- and spring-seeded)
Early Season Applications 
Apply 1.5 to 3 oz/A (0.0656 to 0.1313 lb. ae/A) of WC-DCB to triticale. Early season applications to fall-seeded 
triticale must be made prior to the jointing stage.
DO NOT exceed 3 oz/A (0.1313 lb. ae/A) of WC-DCB in a single application or crop season.
Early season applications to spring-seeded triticale must be made before triticale reaches the 6-leaf stage.
Triticale Tank Mixes:For best performance, may be used in tank mix combination with bromoxynil. It is the 
pesticide user’s responsibility to ensure that all products in the listed mixtures are registered for the intended use. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture.
CEREAL GRAINS: WHEAT (Fall- and Spring-seeded)
Early Season Applications
Apply 1.5 to 3 oz/A (0.0656 to 0.1313 lb. ae/A) of WC-DCB to wheat unless using one of the fall-seeded wheat 
specific programs below.
Early season applications to fall-seeded wheat must be made prior to the jointing stage.
Early season applications to spring-seeded wheat must be made before wheat exceeds the 6-leaf stage.
Early developing wheat varieties such as TAM 107, Madison, or Wakefield must receive application between early 
tillering and the jointing stage. Care should be taken in staging these varieties to be certain that the application 
occurs prior to the jointing stage.
To improve control of Russian thistle, flixweed, gromwell, or mayweed, add bromoxynil, 2,4-D amine or ester to a 
tank mix with other suitable registered herbicides. It is the pesticide user’s responsibility to ensure that all products in

18 
 
the listed mixtures are registered for the intended use. Users must follow the most restrictive directions for use and 
precautionary statements of each product in the tank mixture.
SPECIFIC USE PROGRAMS FOR FALL-SEEDED WHEAT ONLY
WC-DCB may be used at 4 oz/A (0.175 lb. ae/A) on fall-seeded wheat in Western Oregon as a spring application 
only. In Colorado, Kansas, New Mexico, Oklahoma, and Texas, up to 6 oz/A (0.2625 lb. ae/A) of WC-DCB may be 
applied on fall-seeded wheat after it exceeds the 3-leaf stage for suppression of perennial weeds, such as field 
bindweed. Applications may be made in the fall following a frost but before a killing freeze. WC-DCB may be tank 
mixed with 2,4-D amine at 6 oz/A (0.2625 lb. ae/A) after wheat begins to tiller. Periods of extended stress such as 
cold and wet weather may enhance the possibility of crop injury. For fall applications only.
DO NOTuse if the potential for crop injury is not acceptable.
Preharvest Applications
WC-DCB can be used to control weeds that may interfere with harvest of wheat. Apply 6 oz/A (0.2625 lb. ae/A) WC-
DCB per acre as a broadcast or spot treatment to annual broadleaf weeds when wheat is in the hard dough stage 
and the green color is gone from the node joints) of the stem. Best results will be obtained if application can be 
made when weeds are actively growing but before weeds canopy.
A Preharvest Interval of 7 days is required before harvest.
DO NOTuse preharvest-treated wheat for seed unless a germination test is performed on the seed with an 
acceptable result of 95% germination or better.
For control of additional broadleaf weeds or grasses, WC-DCB may be tank mixed with other herbicides.
DO NOTmake pre-harvest applications in California.
DO NOT exceed 6 oz/A (0.2625 lb. ae/A) of WC-DCB in a single application and 12 oz/A (0.525 lb. ae/A) in a crop 
season.
WHEAT TANK MIXES
WC-DCB may be applied in tank mixes with other suitable registered herbicides, including one or more of the 
following FMC herbicides Ally XP1herbicide, Express1herbicide (with TotalSol soluble granules), Finesse Cereal 
and Fallow1herbicide, Glean XP1herbicide, Harmony Extra SG1herbicide (with TotalSol® soluble granules), and 
Aim EC herbicide. 
Tank Mix Product Name EPA Registration No. Active Ingredients
Aim EC herbicide 279-3241 Carfentrazone-ethyl
Ally XP herbicide 279-9575 Metsulfuron-methyl
Express herbicide (with TotalSol soluble 
granules) 279-9594 Tribenuron-methyl
Finesse Cereal and Fallow herbicide 279-9610 Chlorsulfuron + metsulfuron-methyl
Glean XP herbicide 279-9600 Chlorsulfuron
Harmony Extra SG herbicide (with TotalSol
soluble granules) 279-9602 Thifensulfuron+tribenuron-methyl
In addition, WC-DCB may be applied in tank mixes with products containing triasulfuron1, bromoxynil + MCPA, 
clopyralid + 2, 4-D, clopyralid, diuron, glyphosate2, MCPA amine or ester3, prosulfuron1, and 2,4-D Amine or Ester3.
It is the pesticide user’s responsibility to ensure that all products in the listed mixtures are registered for the intended 
use. Users must follow the most restrictive directions for use and precautionary statements of each product in the 
tank mixture.
1. DO NOTuse low rates of sulfonylurea containing herbicides on more mature weeds or on dense vegetative 
growth.
2. A tank mix of up to 3 oz/A (0.1313 lb. ae/A) of WC-DCB with a glyphosate formulation labeled for use as a 
preplant application to small grains may be applied with no waiting period prior to planting.
3. Up to 32 fl oz/A of (1.0 pound ae.) may be used on fall-seeded wheat if crop injury is acceptable. 
SORGHUM
WC-DCB may be applied preplant, postemergence, or preharvest in sorghum to control many annual broadleaf 
weeds and to reduce competition from established perennial broadleaf weeds, as well as control their seedlings.
DO NOTgraze or feed treated sorghum forage or silage prior to mature grain stage. If sorghum is grown for pasture 
or hay, refer to Pasture, Hay, Rangeland and Farmstead section of this label for specific grazing and feeding 
restrictions.

19 
 
DO NOTapply WC-DCB to sorghum grown for seed production. 
Preplant Application
Up to 6 oz (0.2625 lb. ae/A) of WC-DCB may be applied per acre if applied at least 15 days before sorghum 
planting.
Postemergence Applications
Up to 6 oz (0.2625 lb. ae) of WC-DCB per acre may be applied after sorghum is in the spike stage (all sorghum 
emerged) but before sorghum is 15" tall. For best performance, apply WC-DCB when the sorghum crop is in the 3 to 
5 leaf stage and weeds are small (less than 3" tall). Use drop pipes (drop nozzles) if sorghum is taller than 8". Keep 
the spray off the sorghum leaves and out of the whorl to reduce the likelihood of crop injury and to improve spray 
coverage of weed foliage.
Applying WC-DCB to sorghum during periods of rapid growth may result in temporary leaning of plants or rolling of 
leaves. These effects are usually outgrown within 10 to 14 days.
Preharvest uses in Texas and Oklahoma only:
Up to 6 oz/A (0.2625 lb. ae/A) of WC-DCB be applied for weed suppression any time after the sorghum has reached 
the soft dough stage. An agriculturally approved surfactant may be used to improve performance. For aerial 
applications, use at least 2 gallons of water-based carrier per treated acre. Delay harvest until 30 days after a 
preharvest treatment.
Split Application
WC-DCB may be applied in split applications: preplant followed by postemergence or preharvest; or postemergence 
followed by preharvest. DO NOTexceed 6 oz/A (0.2625 lb. ae/A), per application or a total of 12 oz/A (0.525 lb. 
ae/A) per acre, per season.
SORGHUM TANK MIXES AND SEQUENTIAL TREATMENTS
WC-DCB may be applied prior to, in a tank mix with, or after one or more of the following suitable registered 
herbicides containing atrazine, bentazon, s-metoalachlor + atrazine, s-metoalachlor, dimethenamid + atrazine,
glyphosate + 2,4-D, dimethenamid-P, glyphosate, quinclorac, paraquat, prosulfuron, and halosulfuron. (It is the 
pesticide user’s responsibility to ensure that all products in the listed mixtures are registered for the intended use. 
Users must follow the most restrictive directions for use and precautionary statements of each product in the tank 
mixture).
SOYBEAN
Preplant Applications
Apply 3 to 12 oz/A (0.1313 to 0.525 lb. ae/A) of WC-DCB to control emerged broadleaf weeds prior to planting 
soybeans.
DO NOTexceed 12 oz/A (0.525 lb. ae/A) of WC-DCB in a spring application prior to planting soybeans. Following 
application of WC-DCB and a minimum accumulation of 1" rainfall or overhead irrigation, a waiting interval of 14 
days is required for 6 oz/A (0.2625 lb. ae/A) or less, and 28 days for 12 oz/A (0.525 lb. ae/A). These intervals must 
be observed prior to planting soybeans or crop injury may occur.
DO NOTmake WC-DCB preplant applications to soybeans in geographic areas with average annual rainfall less 
than 25".
PREHARVEST APPLICATIONS
WC-DCB can be used to control many annual and perennial broadleaf weeds and control or suppress many biennial 
and perennial broadleaf weeds in soybean prior to harvest (refer to the “Application Rates” section). Apply 6 to 24 
oz/A (0.2625 to 1.05 lb. ae/A) of WC-DCB as a broadcast or spot treatment to emerged and actively growing weeds 
after soybean pods have reached mature brown color and at least 75% leaf drop has occurred.
Soybeans may be harvested 7 days or more after a preharvest application. Treatments may not kill weeds that 
develop from seed or underground plant parts, such as rhizomes or bulblets, after the
effective period for WC-DCB. For seedling control, a follow-up program or other cultural practice could be instituted.
DO NOTuse preharvest-treated soybean for seed unless a germination test is performed on the seed with an 
acceptable result of 95% germination or better.
DO NOTfeed soybean fodder or hay following a preharvest application of WC-DCB.
DO NOTmake preharvest applications in California.

20 
 
Soybean Tank Mixes
It is the pesticide user’s responsibility to ensure that all products in the listed mixtures are registered for the intended 
use. Users must follow the most restrictive directions for use and precautionary statements of each product in the 
tank mixture.
Preplant Tank Mixes:WC-DCB may be tank mixed with other suitable registered herbicides for early preplant use 
in soybeans including burn-down herbicides. It is the pesticide user’s responsibility to ensure that all products in the 
listed mixtures are registered for the intended use. Users must follow the most restrictive directions for use and 
precautionary statements of each product in the tank mixture.
Preharvest Tank Mixes:WC-DCB may be tank mixed with other suitable registered herbicides for preharvest use 
in soybeans
DO NOT exceed 24 oz/A (1.05 lb. ae/A) of WC-DCB in any of the soybean applications instructed above 
andDO NOTexceed 48 oz/A (2.1 lb. ae/A) in a year.
SUGARCANE
Apply WC-DCB for control of annual, biennial, or perennial broadleaf weeds listed in the “Application Rates” section.
Apply 6 to 17 oz (0.2625 to 0.7438 lb. ae) of WC-DCB per acre for control of annual weeds, 12 to 24 oz/A (0.525 to 
1.05 lb. ae/A) for control of biennial weeds, and 24 oz/A (1.05 lb. ae/A) for control or suppression of perennial weeds.
Use the higher level of listed rate ranges when treating dense vegetative growth. Retreatments may be made as 
needed, however, DO NOT exceed the single maximum application rate of 24 oz (1.05 lb. ae) per treated acre. DO 
NOTexceed a total of 48 oz (2.1 lb. ae) of WC-DCB per treated acre during a growing season.
Timing:WC-DCB may be applied to sugarcane any time after weeds have emerged, but before the close-in stage of 
sugarcane. Applications of 24 oz (1.05 lb. ae) of WC-DCB per acre made over the top of actively growing sugarcane 
may result in crop injury. When possible, direct the spray beneath the sugarcane canopy to minimize the likelihood of 
crop injury. Using directed sprays will also help maximize the spray coverage of weed foliage.
Sugarcane Tank Mixes
WC-DCB may be tank mixed with other products suitably registered for use in sugarcane. It is the pesticide user’s 
responsibility to ensure that all products in the listed mixtures are registered for the intended use. Users must follow 
the most restrictive directions for use and precautionary statements of each product in the tank mixture.
FARMSTEAD TURF (Non Cropland) and SOD FARMS
For use in farmstead (noncropland) and sod farms, apply 2 to 24 oz (0.0875 to 1.05 lb. ae) of WC-DCB per acre to 
control or suppress growth of many annual, biennial, and some perennial broadleaf weeds commonly found in turf. 
WC-DCB will also suppress many other listed perennial broadleaf weeds and woody brush and vine species. Refer 
to theApplication Information Section, Additive Rate per Acre table for rates of various additives. Some weed 
species will require tank mixes for adequate control.
Repeat treatments may be made as needed; however, DO NOTexceed 24 oz (1.05 lb. ae) of WC-DCB per acre or
per growing season.
Apply 30 to 200 gallons of diluted spray per treated acre (3 to 17 quarts of water per 1,000 square feet), depending 
on density or height of weeds treated and on the type of equipment used.
To avoid injury to newly seeded grasses delay application of WC-DCB until after the second mowing. Furthermore, 
applying more than 12 oz (0.525 lb. ae) of WC-DCB per treated acre may cause noticeable stunting or discoloration 
of sensitive grass species such as bentgrass, carpetgrass, buffalograss, and St. Augustinegrass.
In areas where roots of sensitive plants extend, DO NOT apply more than 3 oz (0.1313 lb. ae) of WC-DCB per 
treated acre on coarse-textured (sandy-type) soils, or in excess of 6 oz (0.2625 lb. ae) per treated acre on fine-
textured soils. DO NOTmake repeated applications in these areas for 30 days and until previous applications in 
these areas for 30 days and until previous applications of WC-DCB have been activated by rain or irrigation.
Farmstead Turf (non cropland) and sod Farms Tank Mixes
Apply 3 to 6 oz (0.1313 to 0.2625 lb. ae) of WC-DCB per acre in a tank mix with one of the products containing the 
active ingredients bromoxynil, MCPA, MCPP, and 2,4-D at labeled rates. Use the higher rates when treating 
established weeds.

21 
 
CROPS
This product can be used on the following crops:
Asparagus
Conservation Reserve Program (CRP) 
Corn
Cotton
Fallow Systems (Between-crop Applications)
Proso Millet
Pastures
Rangeland
Farmstead
Small Grains (Barley, Oat, Triticale, and Wheat) 
Sorghum
Soybean 
Sugarcane 
Turf
Procedure for Cleaning Spray Equipment
The steps listed below are suggested for thorough cleaning of spray equipment following applications of WC-DCB or 
tank mixes of WC-DCB.
Step 1: Clean application equipment thoroughly by using a strong detergent or commercial sprayer cleaner, 
according to the manufacturer's directions, and then triple rinsing the equipment before and after applying this 
product.
Step 2: Hose down thoroughly the inside as well as outside surfaces of equipment while filling the spray tank half 
full of water. Flush by operating sprayer until the system is purged of the rinse water.
Step 3: Fill tank with water while adding 1 quart of household ammonia for every 25 gallons of water. Operate the 
pump to circulate the ammonia solution through the sprayer system for 15 to 20 minutes and discharge a small 
amount of the ammonia solution through the boom and nozzles. Let the solution stand for several hours, preferably 
overnight. Flush the solution out of the spray tank through the boom.
Step 4: Remove the nozzles and screens and flush the system with two full tanks of water.
The steps listed below are suggested for thorough cleaning of spray equipment used to apply WC-DCB as a tank 
mix with wettable powders (WP) emulsifiable concentrates (EC), or other types of water-dispersible formulations. 
WC-DCB tank mixes with water-dispersible formulations require the use of a water/detergent rinse.
1. Complete Step 1 (Above).
2. Fill tank with water while adding 2 lbs of detergent for every 40 gallons of water. Operate the pump to circulate 
the detergent solution through the sprayer system for 5 to 10 minutes and discharge a small amount of the 
solution through the boom and nozzles. Let the solution stand for several hours. preferably overnight.
3. Flush the detergent solution out of the spray tank through the boom. Repeat step 1 and follow with Steps 2, 3, 
and 4 (Above).
Directions to Avoid Herbicide Drift:
Sensitive Crop Precautions:
WC-DCB may cause injury to desirable trees and plants, particularly beans, cotton, flowers, fruit trees, grapes, 
ornamentals, peas, potatoes, soybeans, sunflowers, tobacco, tomatoes, and other broadleaf plants when 
contacting their roots, stems, or foliage. These plants are most sensitive to WC-DCB during their development or 
growing stage.
DO NOTmake applications when spray particles may be carried by air currents to areas where sensitive crops 
and plants are growing. DO NOTspray near sensitive plants if wind is gusty or in excess of 5 mph and moving in 
the direction of adjacent sensitive crops. Leave an adequate buffer zone between area to be treated and only 
sensitive plants. Coarse sprays are less likely to drift out of the target area than fine sprays.
Use coarse sprays (volume median diameter of 400 microns or more) to avoid potential herbicide drift. Select 
nozzles that are designed to produce minimal amounts of fine spray particles (less than 200 microns). Examples 
of nozzles designed to produce coarse sprays via ground applications are Delavan® Raindrops, Spraying

22 
 
Systems XR (excluding 110° tips) flat fans, Turbo Teejets®, Turbo Floodjets®, or large capacity flood nozzles 
such as D10, TK10, or greater capacity tips.
Keep the spray pressure at or below 20 psi and the spray volume at or above 20 gallons per acre (for ground 
broadcast applications), unless otherwise required by the manufacturer of drift-reducing nozzles. Consult your 
spray nozzle supplier concerning the choice of drift-reducing nozzles.
DO NOTapply WC-DCB adjacent to sensitive crops when the temperature on the day of application is expected 
to exceed 85° F as drift is more likely to occur.
Agriculturally approved drift-reducing additives may be used.
Aerial Application and Equipment:
DO NOTUSE AERIAL APPLICATION EQUIPMENT IF SPRAY PARTICLES CAN BE CARRIED BY WIND INTO 
AREAS WHERE SENSITIVE CROPS OR PLANTS ARE GROWING.
Use coarse sprays:WC-DCB must not be applied during periods of gusty wind or when wind is in excess of 15 
mph as uneven spray coverage may occur.
Water Volume:Use 1 to 10 gallons of water per acre (2 to 20 gallons of diluted spray per treated acre for 
preharvest uses). Use the higher spray volume when treating dense or tall vegetation.
Select nozzles designed to produce minimal amounts of fine spray particles. Make aerial applications at the lowest 
safe height to reduce exposing the spray to evaporation and wind. The applicator must follow the most restrictive 
use cautions to avoid drift hazards, including those found in this labeling, as well as state and local regulations and 
ordinances. DO NOTuse aerial equipment if spray particles can be carried by the wind into areas where sensitive 
crops or plants are growing or when temperature inversions exist.
Ground Application and Equipment:
Ground Application (Banding)-Bandwidth in inches X Broadcast RATE per treated acre = Band RATE per treated acre.
Row width in inches
-Bandwidth in inches X Broadcast VOLUME per treated acre = Band VOLUME per treated acre.
Row width in inches
Ground Application (Broadcast)-Water Volume
Use 3 to 50 gallons of spray solution per broadcast acre for optimal performance. Use the higher spray 
volume when treating dense or tall vegetation.
-Application Equipment
Use coarse sprays. Select nozzles designed to produce minimal amounts of fine spray particles. Spray with 
nozzles as close to the weeds as is practical for good weed coverage.
WC-DCB must not be applied during periods of gusty wind or when wind is in excess of 15 mph as uneven 
spray coverage may occur.
Ground Applications (Wipers)
WC-DCB may be applied through wiper application equipment to control or suppress actively growing broadleaf 
weeds, brush, and vines. Use a solution containing 90 ounces WC-DCB per 1-gallon water. DO NOTcontact 
desirable vegetation with herbicide solution. Wiper application may be made to crops (including pastures) and 
non-cropland areas described in this label with the exception of cotton, sorghum, and soybean.
PESTICIDE STORAGE AND DISPOSAL
Pesticide Storage: Store the product in original container only. Do not contaminate water, other pesticides, 
fertilizer, food, or feed in storage. Store in a cool, dry place.
Product Disposal: Do not contaminate water, food, or feed by disposal. Wastes resulting from the use of this 
product must be disposed of on site or at an approved waste disposal facility.
CONTAINER HANDLING:
Refer to the Net Contents section of this product’s labeling for the applicable “Nonrefillable Container” or 
“Refillable Container” designation.
Nonrefillable Plastic and Metal Containers (Capacity Equal to or Less Than 50 Pounds): Nonrefillable 
container. Do not reuse or refill this container. Triple rinse container (or equivalent) promptly after emptying. 
Triple rinse as follows: Empty the remaining contents into application equipment or a mix tank. Fill the container 
1/4 full with water and recap. Shake for 10 seconds. Pour rinsate into application equipment or a mix tank or 
store rinsate for later use or disposal. Drain for 10 seconds after the flow begins to drip. Repeat this procedure 
two more times. Then, for Plastic Containers, offer for recycling if available or puncture and dispose of in a

23 
 
sanitary landfill, or by incineration. Do not burn, unless allowed by state and local ordinances. For Metal 
Containers, offer for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary 
landfill, or by other procedures approved by state and local authorities
Nonrefillable Plastic and Metal Containers (Capacity Greater Than 50 Pounds): Nonrefillable container. Do 
not reuse or refill this container. Triple rinse container (or equivalent) promptly after emptying. Triple rinse as 
follows: Empty the remaining contents into application equipment or a mix tank. Fill the container 1/4 full with 
water. Replace and tighten closures. Tip container on its side and roll it back and forth, ensuring at least one 
complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth several times. Turn 
the container over onto its other end and tip it back and forth several times. Empty the rinsate into application 
equipment or a mix tank or store rinsate for later use or disposal. Repeat this procedure two more times. Then, 
for Plastic Containers, offer for recycling if available or puncture and dispose of in a sanitary landfill, or by 
incineration. Do not burn, unless allowed by state and local ordinances. For Metal Containers, offer for recycling if 
available or reconditioning if appropriate, or puncture and dispose of in a sanitary landfill, or by other procedures 
approved by state and local authorities.
Nonrefillable Plastic and Metal Containers, e.g., Intermediate Bulk Containers [IBC] (Size or Shape Too 
Large to be Tipped, Rolled or Turned Upside Down): Nonrefillable container. Do not reuse or refill this 
container. Clean container promptly after emptying the contents from this container into application equipment or 
mix tank and before final disposal using the following pressure rinsing procedure. Insert a lance fitted with a 
suitable tank cleaning nozzle into the container and ensure that the water spray thoroughly covers the top, 
bottom and all sides inside the container. The nozzle manufacturer generally provides instructions for the 
appropriate spray pressure, spray duration and/or spray volume. If the manufacturer’s instructions are not 
available, pressure rinse the container for at least 60 seconds using a minimum pressure of 30 PSI with a 
minimum rinse volume of 10% of the container volume. Drain, pour or pump rinsate into application equipment or 
rinsate collection system. Repeat this pressure rinsing procedure two more times. Then, for Plastic Containers, 
offer for recycling if available or puncture and dispose of in a sanitary landfill, or by incineration. For Metal 
Containers, offer for recycling if available or reconditioning if appropriate, or puncture and dispose of in a sanitary 
landfill, or by other procedures approved by state and local authorities.
Nonrefillable Paper or Plastic Bags, Fiber Sacks including Flexible Intermediate Bulk Containers (FIBC) 
or Fiber Drums With Liners: Nonrefillable container. Do not reuse or refill this container. Completely empty 
paper or plastic bag, fiber sack or drum liner by shaking and tapping sides and bottom to loosen clinging 
particles. Empty residue into application or manufacturing equipment. Then offer for recycling if available or 
dispose of empty paper or plastic bag, fiber sack or fiber drum and liner in a sanitary landfill, or by incineration. 
Do not burn, unless allowed by state and local ordinances.
Refillable Fiber Drums With Liners: Refillable container (fiber drum only). Refilling Fiber Drum: Refill this fiber 
drum with WC-DCB containing sodium salt of dicamba only. Do not reuse this fiber drum for any other purpose. 
Cleaning before refilling is the responsibility of the refiller. Completely empty liner by shaking and tapping sides 
and bottom to loosen clinging particles. Empty residue into application or manufacturing equipment. Disposing of 
Fiber Drum and/or Liner: Do not reuse this fiber drum for any other purpose other than refilling (see preceding). 
Cleaning the container (liner and/or fiber drum) before final disposal is the responsibility of the person disposing 
of the container. Offer the liner for recycling if available or dispose of liner in a sanitary landfill, or by incineration. 
Do not burn, unless allowed by state and local ordinances. If drum is contaminated and cannot be reused, 
dispose of it in the manner required for its liner. To clean the fiber drum before final disposal, completely empty 
the fiber drum by shaking and tapping sides and bottom to loosen clinging particles. Empty residue into 
application or manufacturing equipment. Then offer the fiber drum for recycling if available or dispose of in a 
sanitary landfill, or by incineration. Do not burn, unless allowed by state and local ordinances.
All Other Refillable Containers: Refillable container. Refilling Container: Refill this container with WC-DCB
containing sodium salt of dicamba only. Do not reuse this container for any other purpose. Cleaning before 
refilling is the responsibility of the refiller. Prior to refilling, inspect carefully for damage such as cracks, 
punctures, abrasions, worn out threads and closure devices. If damage is found, do not use the container, 
contact FMC at the number below for instructions. Check for leaks after refilling and before transporting. If leaks 
are found, do not reuse or transport container, contact FMC at the number below for instructions. Disposing of 
Container: Do not reuse this container for any other purpose other than refilling (see preceding). Cleaning the 
container before final disposal is the responsibility of the person disposing of the container. To clean the 
container before final disposal, use the following pressure rinsing procedure. Insert a lance fitted with a suitable 
tank cleaning nozzle into the container and ensure that the water spray thoroughly covers the top, bottom and all 
sides inside the container. The nozzle manufacturer generally provides instructions for the appropriate spray 
pressure, spray duration and/or spray volume. If the manufacturer’s instructions are not available, pressure rinse 
the container for at least 60 seconds using a minimum pressure of 30 PSI with a minimum rinse volume of 10% 
of the container volume. Drain, pour or pump rinsate into application equipment or rinsate collection system. 
Repeat this pressure rinsing procedure two more times. Then, for Plastic Containers, offer for recycling if 
available or puncture and dispose of in a sanitary landfill, or by incineration. Do not burn, unless allowed by state

24 
 
and local ordinances. For Metal Containers, offer for recycling if available or reconditioning if appropriate, or 
puncture and dispose of in a sanitary landfill, or by other procedures approved by state and local authorities.
Outer Foil Pouches of Water Soluble Packets (WSP): Nonrefillable container. Do not reuse or refill this 
container. Offer for recycling if available or, dispose of the empty outer foil pouch in the trash as long as WSP is 
unbroken. If the outer pouch contacts the formulated product in any way, the pouch must be triple rinsed with 
clean water. Add the rinsate to the spray tank and dispose of the outer pouch as described previously.
Do not transport if this container is damaged or leaking. If the container is damaged, leaking or obsolete, or in the 
event of a major spill, fire or other emergency, contact CHEMTREC (Transportation and Spills) at 1-800-424-
9300, day or night.
NOTICE TO BUYER: Purchase of this material does not confer any rights under patents of countries outside of the 
United States.
FMC, Aim, Ally, Express, Finesse, Glean, Harmony and TotalSol® are trademarks of FMC Corporation or an affiliate. 
Turbo Teejet and Turbo Floodjet are registered trademarks of Spraying Systems, Inc.
Delavan is a registered trademark of Garlock International, Inc.
CONDITIONS OF SALE AND LIMITATIONS OF WARRANTY AND LIABILITY
Notice: Read the entire Directions for Use and Conditions of Sale and Limitation of Warranty and Liability before 
buying or using this product. If the terms are not acceptable, return the product at once, unopened, and the 
purchase price will be refunded.
The Directions for Use of this product must be followed carefully. It is impossible to eliminate all risks inherently 
associated with the use of this product. Crop injury, ineffectiveness, or other unintended consequences may result 
because of such factors as manner of use or application, weather or crop conditions beyond the control of FMC or 
Seller. To the extent consistent with applicable law, all such risks shall be assumed by Buyer and User, and, to the 
extent consistent with applicable law, Buyer and User agree to hold FMC and Seller harmless for any claims 
relating to such factors.
Seller warrants that this product conforms to the chemical description on the label and is reasonably fit 
for the purposes stated on the Directions for Use when used in accordance with the directions under 
normal conditions of use. TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, FMC MAKES NO 
WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE, NOR ANY OTHER 
EXPRESS OR IMPLIED WARRANTIES WITH RESPECT TO THE SELECTION, PURCHASE, OR USE OF 
THIS PRODUCT. Any warranties, express or implied, having been made are inapplicable if this product 
has been used contrary to label instructions, or under abnormal conditions, or under conditions not 
reasonably foreseeable to (or beyond the control of) Seller or FMC, and, to the extent permitted by 
applicable law, Buyer assumes the risk of any such use.
To the extent consistent with applicable law, FMC or Seller shall not be liable for any incidental, consequential or 
special damages resulting from the use or handling of this product. TO THE EXTENT CONSISTENT WITH 
APPLICABLE LAW, THE EXCLUSIVE REMEDY OF THE USER OR BUYER, AND THE EXCLUSIVE LIABILITY 
OF FMC AND SELLER FOR ANY AND ALL CLAIMS, LOSSES, INJURIES OR DAMAGES (INCLUDING CLAIMS 
BASED ON BREACH OF WARRANTY, CONTRACT, NEGLIGENCE, TORT, STRICT LIABILITY OR 
OTHERWISE) RESULTING FROM THE USE OR HANDLING OF THIS PRODUCT, SHALL BE THE RETURN 
OF THE PURCHASE PRICE OF THE PRODUCT OR, AT THE ELECTION OF FMC OR SELLER, THE 
REPLACEMENT OF THE PRODUCT.
This Condition of Sale and Limitation of Warranty and Liability may not be amended by any oral or written 
agreement.
D-4296 031920
FMC Corporation, 2929 Walnut Street, Philadelphia, PA 19104
© 2019 FMC Corporation. All rights reserved.