crop-chem-docs/corpus/epa_ppls/264-843.md

# IODOSULFURON 10 WDG HERBICIDE

- EPA Reg No: **264-843**
- Registrant: BAYER CROPSCIENCE, LLC
- Signal word: Caution
- Active ingredients: Iodosulfuron-methyl-sodium  (10%)
- Label accepted: 2011-10-17
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000264-00843-20111017.pdf

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UNITED STATES ENVIRONMENTAL PROTECTION AGENCY
WASHINGTON, D.C. 20460
OFFICE OF CHEMICAL SAFETY
AND POLLUTION PREVENTION
OCT 17 2011
Nang-Ly Chow, Ph.D.
Bayer CropScience LP
P.O. Box 12014; 2 T.W. Alexander Drive
Research Triangle Park, NC 27709
Subject: Notification Under PRN 98-10 to Remove Expired Patent Number
(~ lodosulfuron 10 WDG Herbicide
^ EPA Reg. No. 264-843
Your Application, Dated September 28, 2011
Dear Dr. Chow:
The Agency is in receipt of your Application for Pesticide Notification under
Pesticide Registration Notice (PRN) 98-10 for the subject product. The Registration Division
(RD) has conducted a review of this request for applicability
under PRN 98-10 and finds that the label change requested falls within the scope of
the PRN. The label has been date-stamped "Notification" and will be placed in our records.
If you have any questions, please call me directly at (703) 306-0415 or Susan Stanton of my staff
at (703) 305-5218.
C Sincerel
Kable Bo Davis, Product Manager 25
Herbicide Branch
Registration Division (7505P)
Office of Pesticide Programs

APIease read instructions on reverse before completing form. Form Approved. OMB No. 2070-0060. Approval expires 05-31 -98 7 I I \
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Jl f~ f^ m V United States L] Regk .ation
*™ ••• fcJ M\ Environmental Protection Agency
^OF •» • * m Washington, DC 20460 (_j Amendment
0 Other
Application for Pesticide - Section 1
1 . Company/Product Number
4. Company/Product (Name)
lodosulfuron 10 WDG Herbicide; '•••t
5. Name and Address of Application (Include ZIP Code)
Bayer CropScience
PO Box 12014, 2 Alexander Drive,
Research Triangle Park, NC 27709
LJ Check if this is a new address b *• - *•'
2. EPA Product Manager 3
Mr. Kabie Bo Davis
PM Team 25 r
OPP Identifier Number
Proposed Classification
^] None Q Restricted
6. Expedited Review. In accordance with FIFRA Section 3(c)(3)
(b)(i), my product is similar or identical in composition and labeling
to:
EPA Rea. No.
Product Name
"' * *
Sectidh-H «*
LJ Amendment - Explain below.
I I Resubmission in response to Agency letter dated
UU Notification - Explain below.
Explanation: Use a
Submission of a Pest
active ingredient that
george.sabbagh@ba;
LJ Final printed labels in response to
Aqencv letter dated
D O.O—IO C"Me Too" Application. I- °
I I Other - Explain below. O^t- rrxliS?^dditional page(s) if necessary. (For Section I and Section II.)
cide Notification under the Provisions of PR Notice 98-10: for removing the patent number for the
has expired (on page 1 , Ingredient section of the respective products). Contact:
/er.com
Section - III
1. Material This Product Will Be Packaged In:
Child-Resistant Packaging
D Yes
D No
* Certification must be
submitted
Unit Packaging Water Soluble Packaging 2. Type of Container
PI Yes PI Yes j j Metal
j Plastic
Q No LJ No j I Glass
II Paper
If "Yes", Unit No. per If "Yes
Packaging wgt. container Packa
I
No. per L— _
3e wat container
I
— I Other (Specify)
3. Location of Net Contents Information 4. Size(s) Retail Container 5. Location of Label Directions
I"! Label PI Container j j On Label
1 1 On Labeling accompanying product
6. Manner in Which Label is Affixed to Product
I | 1 Hhoaraoh l~l Other
j I Paper glued
1 1 Stenciled
Section - IV
1 . Contact Point (Complete items directly below for identification of individual to be contacted, if necessary, to proa
Name
Nang-Ly Chow, Ph.D.
Title Te
Registration Manager ;
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Certification
I certify that the statements I have made on this form and all attachments thereto are true, accurate and complete.
I acknowledge that any knowingly false or misleading statement may be punishable by fine or imprisonment or <
both under applicable law.
2. Signature
4. Typed Name: Nang-Ly Chow, Ph.D.
3. Title: Registration Manager
5. Date: September 28, 201 1
L
sss this applictfiorif 0
Bpifo£ieNo.:cl> "
Phbnb: 919-549-2147
fc?x: , L 919-549-2971
^6. DMe Application
1 deceived , ' ', ' c
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EPA Form 8S70-1 (Rev. 8-94) Previous editions are obsolete. White • EPA File Copy (original) Yellow - Applicant Copy

Bayer CropSciertce
September 28,2011
Document Processing Desk (NOTIF)
Office of Pesticide Program (H7504P)
U.S. EPA, Room S4900
One Potomac Yard
Arlington, VA 22202 -4525
ATTN: Mr. Kable Bo Davis (PM 25)
Registration Division (7505P)
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4imi^HlH0 Submission of a Pesticide Notification Under the PRN
98-10, for Removing the Expired Patent Number for the Active Ingredient
Dear Mr. Davis:
Bayer CropScience (BCS) is submitting a pesticide Notification under the Provisions of PR
Notice 98-10 for the lodosulfuron Methyl Sodium Technical (Reg. No.: 264-687) and its end-use
products of lodosulfuron 10WDG Herbicide ((Reg. #: 264-843) and Tribute Solo/Equip
Herbicide (Reg. #: 264-686). The Notification is strictly for one change, that we have removed
the BCS patent number for the active ingredient chemical since it has expired. The patent number
was previously included in the Ingredient Section with a * notation to the active ingredient. We
understand that removing of the 'patent number' qualifies as a 'Non-Notification" change under
PRN 98-10; but for a proper record, BCS wish to inform the Agency of this one change for the
products via the Notification process. For your quick review, enclosed are the EPA Form 8570-1
and one copy each of the respective labels for the three subject products.
This notification is consistent with the provisions of PR Notice 98-10 and EPA regulations at 40
CFR §152.46, and no other changes have been made to the labeling or the confidential statement of
formula for this product. I understand that it is a violation of 18 U.S.C. Section 1001 to willfully
make any false statement to EPA. I further understand that if this notification is not consistent with
the terms of PR Notice 98-10 and 40 CFR §152.46, these products may be in violation of FIFRA
and I may be subjected to enforcement action and penalties under Section 12 and 14 of FIFRA.
We thank the Agency for reviewing the Notification. If you should need other information on these
products, please contact Dr. George Sabbagh via george.sabbagh@bayer.com who will assume the
regulatory responsibilities for the products starting in October 1, 201 1 . c
((_<<-(-<-s.
Sincerely, ( L L c c ,
Nang-Ly Chow, Ph.D.
Registration Manager
With EnclosureNotification Patent No- 9/28/201 1
OCT17

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IODOSULFURON10 WDG HERBICIDEA herbicide for fall burndown application prior to planting soybean.
ACTIVE INGREDIENTS: » >j«J
lodosulfuron-Methyl Sodium (CAS Number 144550-36-7).
OTHER INGREDIENTS: •*.
TOTAL:
...10.00%
....90.00%
100.00%
EPA Reg No. 264-843 E.P.A. Est. No.
KEEP OUT OF REACH OF CHILDREN
CAUTIONSi usted no entiende la etiqueta, busque a alguien para que se la explique a usted en detalle.
(If you do not understand the label, find someone to explain it to you in detail.)
For MEDICAL And TRANSPORTATION Emergencies ONLY Call 24 Hours A Day 1-800-334-7577
(~ For PRODUCT USE Information Call 1-866-99BAYER (1-866-992-2937)
FIRST AID
IF INHALED
IF SWALLOWED:
IF IN EYES:
IF ON SKIN OR
CLOTHING
• Move person to fresh air.
• If person is not breathing, call 911 or an ambulance, then give artificial respiration, preferably by
mouth-to-mouth if possible.
• Call a poison control center or doctor for further information.
• Call a poison control center or doctor immediately for treatment advice.
• Have person sip a glass of water if able to swallow.
• Do not induce vomiting unless told to do so by a poison control center or doctor.
• Do not give anything by mouth to an unconscious person.
• Hold eye open and rinse slowly and gently with water for 1 5-20 minutes.
• Remove contact lenses, if present, after the first 5 minutes, then continue rinsing eye.
• Call a poison control center or doctor for treatment advice.
• Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 1 5 - 20 minutes.
• Call a poison control center or doctor for treatment advice.
For MEDICAL Emergencies Call 24 Hours A Day 1-800-334-7577.
Have the product container or label with you when calling a poison control center or doctor or going for treatment.
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OCTI7

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PRECAUTIONARY STATEMENTS
CAUTION
HAZARD TO HUMANS AND DOMESTIC ANIMALS
Harmful if inhaled or swallowed. Avoid breathing dust. Causes moderate eye irritation. Avoid contact with eyes or clothing.
PERSONAL PROTECTIVE EQUIPMENT (PPE)
Applicators and other handlers must wear: Long-sleeved shirt and long pants and shoes plus socks. Follow manufacturer's
instructions for cleaning/maintaining PPE. If no such instructions for washables, use detergent and hot water. Keep and wash PPE
separately from other laundry.
ENGINEERING CONTROL STATEMENT:
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.
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USER SAFETY RECOMMENDATIONS
Wash thoroughly with soap and water after handling. Wash hands before eating, drinking, chewing gum, using tobacco or using the
toilet. Remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on clean clothing. Remove PPE
immediately after handling this product. Wash the outside of gloves before removing. As soon as possible, wash thoroughly and
change into clean clothing.
ENVIRONMENTAL HAZARDS
This product is toxic to non-target plants. Do not apply when conditions favor drift from treated areas. Do not apply directly to water, to
areas where surface water is present, or to intertidal areas below the mean high water mark. Do not contaminate water when cleaning
equipment or disposing of equipment washwaters. Do not drain or rinse equipment near desirable vegetation.
DIRECTIONS FOR USE
It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
Read entire label before using this product.
Do not apply this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers
may be in the same area during application. For any requirements specific to your State or Tribe, consult the agency responsible for
pesticide regulation.
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AGRICULTURAL USE REQUIREMENTS
Use this product only in accordance with its labeling and with the Worker Protection Standard, 40 CFR part 170. This standard contains
requirements for the protection of agricultural workers on farms, forests, nurseries, and greenhouses, and handlers of agricultural
pesticides. It contains requirements for training, decontamination, notification and emergency assistance. It also contains specific
instructions and exceptions pertaining to the statements on this label about personal protective equipment (PPE) and restricted entry
intervals. The requirements in this box only apply to uses of this product that are covered by the Worker Protection Standard.
Do not enter or allow worker entry into treated areas during the restricted entry interval (REI) of 12 hours.
PPE required for early entry to treated areas that is permitted under the Worker Protection Standard and that involves contact with
anything that has been treated such as plants, soil or water, is coveralls over long-sleeved shirt and long pants, socks and shoes and
chemical-resistant gloves made of any waterproof material.
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STORAGE AND DISPOSAL
Do not contaminate water, food or feed by storage or disposal.
PESTICIDE STORAGE:
Keep container tightly closed when not in use. Avoid cross contamination with other pesticides.
PESTICIDE DISPOSAL:
Wastes resulting from the use of this product may be disposed of on site or at an approved waste disposal facility.
CONTAINER DISPOSAL:
Empty containers should be triple rinsed (or equivalent), then offered for recycling or reconditioning; or puncture and disposed of in a
sanitary landfill, or by incineration; or, if allowed by State and local authorities, by burning. If burned, stay out of smoke.
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GENERAL INFORMATION
lodosulfuron 10 WDG Herbicide is a sulfonylurea herbicide, lodosulfuron may be used for burndown of existing vegetation and residual
weed control when applied to no-till or conservation tillage fields anytime after the fall harvest of soybean. Do not apply to frozen
ground. Weed growth ceases within hours after lodosulfuronIO WDG Herbicide is applied. Symptoms progress from yellowing to
necrosis resulting in eventual plant death within 1-4 weeks after application.
lodosulfuron 10 WDG Herbicide will not provide season-long preemergence control of annual grass and broadleaf weeds.
-for season long control in soybean, follow lodosulfuronIO WDG Herbicide with a sequential program based on targeted
weeds.
APPLICATION TIMING
lodosulfuron 10 WDG Herbicide should be applied after the fall harvest and up to 90 days prior to soybean planting. Do not apply to
frozen ground. Best results are obtained when applications are made to actively growing weeds. lodosulfuronIO WDG Herbicide will
affect weeds that are larger than the listed height, however, speed of activity and control may be reduced. lodosulfuronIO WDG
Herbicide will provide short term residual of small seeded broadleaf weeds.
SPRAY ADDITIVES
lodosulfuronIO WDG Herbicide is a water dispersible granule that requires the use of an external adjuvant and nitrogen fertilizer.
• The addition of Crop Oil Concentrate at 1% v/v (1 gallon per 100 gallons of final spray volume) is required.
• The addition of nitrogen fertilizer (28 or 32% Urea Ammonium Nitrate at 1.5-2 qts/acre or Spray Grade Ammonium Sulfate at
1.5-3.0 Ibs/acre) is required.
APPLICATION METHODS
Uniform, thorough spray coverage is important to achieve consistent weed control. Select spray nozzles and pressure that deliver
MEDIUM spray droplets as indicated in nozzle manufacturer's catalogs and in accordance with ASAE Standard S-572. Nozzles that
deliver COARSE spray droplets may be used to reduce spray drift provided spray volume per acre (GPA) is increased to maintain
coverage of weeds.
Do not use nozzles that produce FINE (e.g. - Cone) or EXTRA COARSE (e.g. - Flood jet) spray droplets.
Do not apply lodosulfuronIO WDG Herbicide using aerial application.
GROUND APPLICATION
lodosulfuronIO WDG Herbicide may be applied as a broadcast treatment in a minimum of 10 gallons of water per acre. For weed
control in dense weed populations, control of weeds under adverse growing conditions, or control of mature weeds, use higher spray
volumes up to 30 gallons per acre.
Typically flat fan nozzles operated at 30-60 PSI will deliver MEDIUM spray droplets, providing optimum spray coverage and canopy
penetration. Lower pressure operation and/or higher volume flat fan nozzles, typically deliver COARSE sprays. Refen'.o npzile
manufacturer catalogs. i' ' tc u i t r- l
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Air induction nozzles should be used at or near 60 psi to produce a medium droplet size. c t, , . , i (.
SPRAY DRIFT MANAGEMENT l" , L <-(<-(. '• <• L
lodosulfuronl 0 WDG Herbicide is not volatile. Damage to sensitive crops can occur as a result of spray drift. S^ray drift can be
managed by several application factors and by spraying under appropriate climatic conditions. Consequently', avoidance of spray drift
is the responsibility of the applicator. «. L «. 111

SENSITIVE AREAS: The pesticide should only be applied when the potential for drift to adjacent sensitive areas (e.g. residential areas,
bodies of water, known habitats for threatened or endangered species, non-target crops) is minimal (e.g. when wind is blowing away
from the sensitive areas).
Avoiding spray drift at the application site is the responsibility of the applicator. The interaction of many equipment-and-weather-related
factors determine the potential or spray drift. The applicator and the grower are responsible for considering tall these factors when
making decisions.
Do not apply under circumstances where possible drift to unprotected persons or to food, forage, or other plantings that might be
damaged or crops thereof rendered unfit for sale, use or consumption can occur.
INFORMATION ON DROPLET SIZE
The most effective way to reduce drift potential is to apply large droplets. The best drift management strategy is to apply the largest
droplets that provide sufficient coverage and control. Applying larger droplets reduces drift potential, but will not prevent drift, if
applications are made improperly, or under unfavorable environmental conditions (see Wind, Temperature and Humidity, and
Temperature inversions below).
Uniform, thorough spray coverage is important to achieve consistent weed control. Select nozzles and pressure that deliver MEDIUM
spray droplets as indicated in nozzle manufacturer's catalogs and in accordance with ASAE Standard S-572. Nozzles that deliver
COARSE spray droplets may be used to reduce spray drift provided spray volume per acre (GPA) is increased to maintain coverage of
weeds.
CONTROLLING DROPLET SIZE:
,- • Volume - Use high flow rate nozzles to apply the highest practical spray volume. Nozzles with higher rated flows produce larger
(_ droplets.
• Pressure - Do not exceed the nozzle manufacturer's recommended pressures. For many nozzle types lower pressure produces
larger droplets. When higher flow rates are needed, use higher flow rate nozzles instead of increasing pressure.
• Number of nozzles - Use the minimum number of nozzles that provide uniform coverage.
• Nozzle Orientation - Orienting nozzles so that the spray is released parallel to the air stream produces larger droplets than other
orientations and is the recommended practice. Significant deflection from horizontal will reduce droplet size and increase drift
potential.
• Nozzle Type - Use a nozzle type that is designed for the intended application. With most nozzle types, narrower spray angles
produce larger droplets. Consider using low-drift nozzles. Solid stream nozzles oriented straight back produce the largest droplets
and the lowest drift.
BOOM LENGTH:
For some use patterns, reducing the effective boom length may further reduce drift without reducing swath width.
APPLICATION HEIGHT:
Apply with nozzle height no more than 4 feet above the ground or crop canopy.
SWATH ADJUSTMENT:
/— When applications are made with a crosswind, the swath will be displaced downward. Therefore, on the up and downwind edges of the
^ field, the applicator must compensate for this displacement by adjusting the path of the sprayer upwind. Swath adjustment distance
should increase, with increasing drift potential (higher wind, smaller drops, etc.)
WIND:
Drift potential is lowest between wind speeds of 2 - 10 mph. However, many factors, including droplet size and equipment type
determine drift potential at any given speed. Application should be avoided below 2 mph due to variable wind direction and high
inversion potential. Wind speed must be measured adjacent to the application site, on the upwind side, immediately prior to application.
NOTE: Local terrain can influence wind patterns. Every applicator should be familiar with local wind patterns and how they affect spray
drift.
TEMPERATURE AND HUMIDITY:
When making applications in low relative humidity, set up equipment to produce larger droplets to compensate for evaporation. Droplet
evaporation is most severe when conditions are both hot and dry. Avoid spraying during conditions of low humidity and/or high
temperatures. cLI"CCc
TEMPERATURE INVERSIONS: c11' l \. ( t, t L
• Do not make applications into areas of temperature inversions. Temperature inversions restrict vertical air mixing, which causes
small suspended droplets to remain in a concentrated cloud. This cloud can move in unpredictable 'directions due to the light
variable winds common during inversions. Temperature inversions are characterized by increasing temperatures with altitude and
are common on nights with limited cloud cover and light to no wind. They begin to form as the sun sets and often 'opntinJe into the
morning. Their presence can be indicated by ground fog; however, if fog is not present, inversionslc'ah''e!so be identified by the
movement of smoke from a ground source. Smoke that layers and moves laterally in a conceijtretpr1 ^cloud (under low wind
conditions) indicates an inversion, while smoke that moves upward and rapidly dissipates indicates good vertical air mixing.

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Mixing Instructions
lodosulfuron 10 WDG Herbicide must be applied with clean and properly calibrated equipment. Prior to adding lodosulfuronIO WDG
Herbicide, ensure that the spray tank, filters and nozzles have been thoroughly cleaned.
1. Fill spray tank with 25% of the required volume of water, and begin agitation prior to the addition of lodosulfuronIO WDG Herbicide.
2. Continue agitation to ensure full dispersion of lodosulfuronIO WDG Herbicide.
3. If lodosulfuronIO WDG Herbicide is applied in a tank mixture with other pesticides, add lodosulfuronIO WDG Herbicide to the spray
tank first and ensure it is thoroughly dispersed before adding other pesticides.
4. Continue to fill the spray tank with water to the desired volume and agitate while adding spray adjuvants and nitrogen fertilizers.
5. Continue agitation during application to ensure a uniform spray mixture. (If lodosulfuronIO WDG Herbicide is added to a partial
tank of spray solution, pre-slurry lodosulfuronIO WDG Herbicide with clean water prior to adding to the spray tank).
If ammonium sulfate (AMS) is the nitrogen fertilizer source, it is preferred that the AMS go into the spray tank prior to
lodosulfuronIO WDG Herbicide.
RE-SUSPENDING WDG PRODUCTS IN SPRAY SOLUTION
Like other Water Dispersible Granules or suspension concentrates (SC's), lodosulfuronIO WDG Herbicide will settle if left standing
without agitation. If the spray solution is allowed to settle for one hour or more, re-agitate the spray solution for a minimum of 10
minutes before application.
COMPATIBILITY
If lodosulfuronIO WDG Herbicide is to be tank-mixed with other pesticides not listed specifically on this label, compatibility should be
tested prior to mixing. To test for compatibility, use a small container and mix a small amount (0.5 to 1qt) of spray, combining all
ingredients in the same ratio as the anticipated use. If any indications of physical incompatibility develop (precipitation, settling,
changes in color) do not use this mixture for spraying. Indications of incompatibility may occur within 5-15 minutes after mixing. Read
and follow the label of each tank mix product used for precautionary statements, directions for use, geographic and other restrictions.
WEED CONTROL INSTRUCTIONS
Rate Instructions Tables for Weed Control
lodosulfuron 10 WDG Herbicide should be applied at a rate of 0.001875 Ibs of active ingredient (0.3 ounces of product) per acre in crop
stubble for the control of certain broadleaf weeds up to 3 inches in height and annual grasses no greater than 1 inch in height. Weeds
controlled are listed below:
Alfalfa Pennycress
Annual Bluegrass Purple deadnettle
Blue Mustard Purselane
Broadleaf plantain Redroot pigweed
Burcucumber Scentless Chamomile
Burdock Shepherd's purse
Buttercup Sunflower
Common chickweed Tansy mustard
Dandelion Turnip weed
Field pennycress Volunteer canola
Hemp Nettle Wild Carrot
Henbit Wild mustard
Horsenettle Wild radish
Mouse-eared chickweed
Weed Resistance
ALS-resistance exists in some biotypes. These biotypes will not be controlled by lodosulfuronIO WDG Herbicide. Consider using
herbicides with other modes of actions such as 2,4-D to control these species.
Tank Mixes !.,.«.. I ..lodosulfuron 10 WDG Herbicide can be tank mixed with 2,4-D for enhanced burn down activity, lodosulfuron 10 WDG can also be tank
mixed with glyphosate, paraquat, or Sencor for fields to be planted to soybean. Refer to tank mix partner label for additic-r.sl 'weeds and
weed heights. , L L,
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TANK CLEANUP PROCEDURE
1. Drain the tank completely, then wash out tank, boom, and hoses with clean water. Drain again. L' ', '
2. Fill the tank half full with clean water and add ammonia (i.e. 3% domestic ammonia solution) at a dilution^pfe of 1% (i.e. <1 'gallon of
domestic ammonia for every 100 gallons of rinsate). Completely fill the tank with water. Agitate/recir,c;ila,te and flush fhW:gh boom
and hoses. Leave agitation on for 10 minutes. Drain tank completely. ; 'L ,.
3. Repeat Step 2.
4. Remove nozzles and screens and soak them in a 1% ammonia solution. Inspect nozzles and screens and remove'^i&iblt;1
residues.
5. Flush tank, boom, and hoses with clean water. Inspect tank for visible residues. If present, repeat Step 2. '<- < <• • < <

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ROTATIONAL CROP DIRECTIONS
lodosulfuronlO WDG Herbicide rapidly degrades in the soil. This degradation is enhanced by warm moist soils that are microbially
active. Rotational intervals to crops are illustrated below.
Crop
Alfalfa
Barley (Spring)
Barley (Winter)
Canola
Cotton*
Corn
Dry Beans
Grain or Forage Sorghum
Oats
Peas, Snap Beans
Potatoes
Red Clover
Rice
Rye (winter)
Soybeans
Sugarbeets
Sunflowers
Wheat (Spring)
Wheat (Winter)
All other crops
Rotational Interval
18 months
8 months
4 months
18 months
9 months
30 days
18 months
9 months
9 months
18 months
18 months
18 months
18 months
4 months
90 days
1 8 months
1 8 months
8 month
4 months
18 months
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OTHER CROPS
All other crops may be seeded only after the completion of a successful field bioassay after an lodosulfuron 10 WDG Herbicide
application. Refer to the "Field Bioassay" section.
*East of Interstate 35, planting of cotton must wait 18 months when soil pH is greater than 7.5 and when less than 15" of annual
precipitation has occurred following an application of lodosulfuron 10 WDG Herbicide.
FIELD BIOASSAY
A field bioassay must be completed before rotating to crops other than those specified in the "Rotational Crop Directions" section of this
label. To conduct an effective field bioassay, grow strips of the crop you intend to grow in the following season in a field previously
treated with lodosulfuronlO WDG Herbicide. The test strip should include low areas and knolls, and include variations in soil such as
type and pH. Crop response to the bioassay will determine if the crop(s) grown in the test strips can be grown safely in the areas
previously treated with lodosulfuron 10 WDG Herbicide.
RESISTANCE MANAGEMENT
Some weed populations may contain plants naturally resistant to lodosulfuronlO WDG Herbicide or other herbicides with the same
mode of action (ALS/AHAS enzyme inhibitors). Repeated use of herbicides with the same mode of action, allow resistant weeds to
spread. To manage the development and spread of resistant weed populations, use herbicides with different modes oi action in tank
mixture, rotation, or in conjunction with alternate cultural practices. !.c l L' '

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USE RESTRICTIONS AND PRECAUTIONS
1. DO NOT apply more than a total of 0.001875 Ibs active ingredient lodosulfuron per acre in a single calendar year. (Equivalent to
0.3 ounces product)
2. Rainfall within 2 hours may necessitate re-treatment with lodosulfuronIO WDG Herbicide and may result in reduced weed control.
Established weeds should be actively growing when the herbicide application is made. Weed control may be reduced if application
is made when weeds are dust covered or in the presence of heavy dew, fog, and mist/rain or when weeds are under stress due to
drought.
3. DO NOT apply when wind causes drift to off-site vegetation, as injury may occur. Small amounts of lodosulfuronIO WDG
Herbicide delivered via drift or spray tank combinations can damage other plants. Carefully manage spray drift and tank cleanout.
4. DO NOT apply this product by air or through any type of irrigation system.
5. Apply lodosulfuronIO WDG Herbicide spray mixtures within 24 hours of mixing to avoid product degradation.
6. DO NOT apply to soils with pH > 8.0
7. DO NOT use nitrogen solutions as spray carriers with lodosulfuronIO WDG Herbicide.
8. When this product is used as a fall burndown application prior to planting soybeans, no other product containing the active
ingredient iodosulfuron may be applied for any other use in the same calendar year on the same acreage.
9. DO NOT make more than 1 application per year.

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IMPORTANT: READ BEFORE USE
Read the entire Directions for Use, Conditions, Disclaimer of Warranties and Limitations of Liability before using this product. If terms
are not acceptable, return the unopened product container at once.
By using this product, user or buyer accepts the following Conditions, Disclaimer of Warranties and Limitations of Liability.
CONDITIONS: The directions for use of this product are believed to be adequate and must be followed carefully. However, it is
impossible to eliminate all risks associated with the use of this product. Ineffectiveness or other unintended consequences may result
because of such factors as weather conditions, presence of other materials, or the manner of use or application, all of which are beyond
the control of Bayer CropScience. All such risks shall be assumed by the user or buyer.
DISCLAIMER OF WARRANTIES: TO THE EXTENT CONSISTENT WITH APPLICABLE LAW, BAYER CROPSCIENCE MAKES NO
OTHER WARRANTIES, EXPRESS OR IMPLIED, OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE OR
OTHERWISE, THAT EXTEND BEYOND THE STATEMENTS MADE ON THIS LABEL. No agent of Bayer CropScience is authorized to
make any warranties beyond those contained herein or to modify the warranties contained herein. TO THE EXTENT CONSISTENT
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lodosulfuronIO WDG Herbicide (MASTER) EPA APPROVED 01/30/07, Notification 05/19/2011
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