crop-chem-docs/corpus/epa_ppls/1381-276.md

# AGST21053

- EPA Reg No: **1381-276**
- Registrant: WINFIELD SOLUTIONS, LLC
- Signal word: Caution
- Active ingredients: Indole-3-butyric acid (0.25%); Cytokinin (as kinetin) (0.046%); Gibberellin A4 mixt. with Gibberellin A7 (0.041%)
- Label accepted: 2024-05-17
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/001381-00276-20240517.pdf

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U.S. ENVIRONMENTAL PROTECTION AGENCY 
Office of Pesticide Programs 
Biopesticides and Pollution Prevention Division (7511M) 
1200 Pennsylvania Ave., N.W. 
Washington, D.C. 20460 
EPA Reg. Number: 
 
1381-276 
 
Date of Issuance: 
 
5/17/2024 
NOTICE OF PESTICIDE: 
 X Registration 
 Reregistration 
Term of Issuance: 
Unconditional 
 (under FIFRA, as amended) Name of Pesticide Product: 
AGST21053 
Name and Address of Registrant (include ZIP Code): 
Winfield Solutions, LLC 
P.O. Box 64589 
St. Paul, MN 55164-0589 
Note: Changes in labeling differing in substance from that accepted in connection with this registration must be submitted to and accepted by the 
Biopesticides and Pollution Prevention 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 
U.S. Environmental Protection Agency. In order to protect health and the environment, the 
Administrator, on his or her 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 the Act is not to be construed as giving the registrant a right to exclusive use of the 
name or to its use if it has been covered by others. 
This product is unconditionally registered in accordance with FIFRA section 3(c)(5) provided that you: 
1. Submit and/or cite all data required for registration or registration review of your product when 
the EPA requires all registrants of similar products to submit such data. 
Signature of Approving Official: 
 
Andrew Bryceland, Team Leader 
Biochemical Pesticides Branch 
Biopesticides and Pollution Prevention Division (7511M) 
Office of Pesticide Programs 
Date: 
 
5/17/2024 
EPA Form 8570-6

Page 2 of 2 
EPA Reg. No. 1381-276 
Action Case No. 00423871 
2. Submit storage stability and corrosion characteristics (Guidelines 830.6317 and 830.6320) data 
as these data requirements are not satisfied. A one-year study is required to satisfy these data 
requirements. You have 18 months from the date of this registration to provide these data to 
the EPA. 
3. Make the following labeling change before you release this product for shipment: 
• Revise the EPA Registration Number to read, “EPA Reg. No. 1381-276.” 
4. Submit one (1) copy of the final printed labeling for the record before you release this product 
for shipment. 
Should you wish to add/retain a reference to your company’s website on your label, then please be 
aware that the website becomes labeling under FIFRA and is subject to review by the EPA. If the 
website is false or misleading, the product will be considered to be misbranded and sale or distribution 
of the product is unlawful under FIFRA section 12(a)(1)(E). 40 CFR § 156.10(a)(5) lists examples of 
statements the 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 EPA find or if it is brought to 
our attention that a website contains statements or claims substantially differing from statements or 
claims made in connection with obtaining a FIFRA section 3 registration, the website will be referred to 
the EPA’s Office of Enforcement and Compliance Assurance. 
Your release for shipment of this product constitutes acceptance of these terms. If these terms are not 
complied with, this registration will be subject to cancellation in accordance with FIFRA section 6. A 
stamped copy of the labeling is enclosed for your records. Please also note that the record for this 
product currently contains the following acceptable Confidential Statements of Formula (CSFs): 
• Basic CSF dated 12/12/2023. 
• Alternate CSF #1 dated 12/12/2023. 
• Alternate CSF #2 dated 12/12/2023. 
• Alternate CSF #3 dated 12/12/2023. 
 
If you have any questions, please contact Menyon Adams by phone at (202) 566-1604 or via email at 
adams.menyon@epa.gov. 
Sincerely, 
 
Andrew Bryceland, Team Leader 
 Biochemical Pesticides Branch 
Biopesticides and Pollution 
Prevention Division (7511M) 
Office of Pesticide Programs 
 
Enclosure

AGST21053 
ABN: Ascend ST3 
 
 PLANT GROWTH REGULATOR 
 
Hormone compounds to stimulate plant growth. 
 
ACTIVE INGREDIENTS 
*Cytokinin, as Kinetin ..................................................................... 0.046% 
*Gibberellins (GA4 + GA7) .............................................................. 0.041% 
*Indole-3-butyric Acid………………………………………… ……… 0.250% 
OTHER INGREDIENTS .......................................................................... 99.663% 
TOTAL 100.000% 
 
 * Contains 0.0040 lbs. cytokinin, as kinetin/gal 
 * Contains 0.0036 lbs. gibberellins/gal 
 *Contains 0.0220 lbs. indole-3-butyric acid/gal 
 
 
 KEEP OUT OF REACH OF CHILDREN 
 
 CAUTION 
 
FIRST AID 
If in eyes • Hold eye open and rinse slowly and gently with water for 15-20 minutes. 
• Remove contact lenses, if present, after the first 5 minutes, then 
continue rinsing eye. 
• Call a poison control center or doctor for treatment advice. 
Have the product container or label with you when calling a poison control center or doctor or 
going for treatment. HOTLINE NUMBER: In case of medical emergency call 1-877-424-
7452. 
Read additional precautionary statements below. 
 
 
 
 
 
EPA Reg. No. 1381-XXX EPA Est. No. [ ___-____-___] 
 NET CONTENTS: 
1 Gal. [2.5 Gal., 15 Gal.] 
 
Distributed by: 
WINFIELD SOLUTIONS, LLC 
P.O. Box 64589, St. Paul, MN 55164 2/1221/2 
 
 [Lot No._______] 
 
05/17/2024
1381-276

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 PRECAUTIONARY STATEMENTS 
 HAZARDS TO HUMANS AND DOMESTIC ANIMALS 
CAUTION: Causes moderate eye irritation. Prolonged or frequently repeated skin contact may 
cause allergic reactions in some individuals. 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. 
 
Wear the appropriate Personal Protective Equipment (PPE). 
 
Personal Protective Equipment: 
Mixers, loaders, applicators and other handlers must wear: 
• long-sleeved shirt and long pants, 
• s hoes plus socks 
• chemical resistant gloves made of barrier laminate, butyl rubber ≥ 14 mils, nitrile rubber ≥ 14 mils, 
neoprene rubber ≥ 14 mils, polyvinyl chloride ≥ 14 mils, or viton ≥ 14 mils. 
 
Follow the manufacturer's instructions for cleaning and maintaining PPE. If no such instructions for 
washables exist, use detergent and hot water. Keep and wash PPE separately from other laundry. 
 
 USER SAFETY RECOMMENDATIONS 
Users should: 
• Remove clothing immediately if pesticide gets inside. Then wash thoroughly and put on clean 
clothing. 
• Remove PPE immediately after handling this produc t. Wash the outside of gloves before 
removing. As soon as possible, wash thoroughly and change into clean clothing. 
 
 ENVIRONMENTAL HAZARDS 
For terrestrial uses. Do not apply directly to water, or to areas where surface water is present or to 
intertidal areas below the mean high water mark. Do not contaminate water by cleaning of 
equipment or disposal of equipment washwater or rinsate. 
 
Treated seed exposed on soil surface may be hazardous to birds, wildlife, fish, and aquatic 
invertebrates. Cover or collect seeds spilled. 
 
 DIRECTIONS FOR USE 
It is a violation of Federal law to use this product in a manner inconsistent with its labeling. 
 
IMPORTANT: Read the entire "Directions for Use" and the "Warranty Disclaimer” and “Limitation of 
Liability” before using this product. If terms are not acceptable, return the unopened product 
container at once. 
 
Do not apply this product in a way that will contact workers or other persons, either directly or through 
drift. Only protected handlers may be in the area during application. For any requirements specific to 
your State or Tribe, consult the State or Tribal 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 workers on farms, forests, 
nurseries, and greenhouses, and handlers of agricultural pesticides . It contains requirements for 
training, decontaminati on, notification, and emergency as
sistance. It also contains specific 
instructions and exceptions pertaining to the statements on this label about personal protective 
equipment and restricted-entry intervals. The requirements in this box only apply to uses of this 
product that are covered by the Worker Protection Standard.

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DO NOT enter or allow workers (or pets) to enter into treated areas during the restricted entry 
interval (REI) of 12 hours. 
 
EXCEPTION: If the pro duct is soil -incorporated, the Worker Protection Standa rd, 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 treat ed areas that is permi tted under the Worker P rotection 
Standard and that involv es contact with anything that has been treated such as plants, soil, or 
water, is: 
• coveralls over long-sleeved shirt and long pants 
• chemical-resistant gloves 
• shoes plus socks. 
 
SEED TREATMENT 
Acting through its unique combination of plant growth regulators, AGST21053 is a seed dressing that 
aids in enhancing germination and early season root and top growth. 
 
SEED TYPES 
Alfalfa, Barley, Bean (dry), Buckwheat, Canola, Clover, Corn, Cotton, Grass (includes species in 
Gramineae/Poaceae family), Kudzu, Lespedeza, Lupin, Millet, Oats, Onion, Pea, Peanuts, 
Popcorn, Potato, Rice, Rye, Sainfoin, Sorghum, Soybean, Sugar beet, Sunflower, Sweet potato, 
Teosinte, Trefoil, Triticale, Velvet bean, Vetch, Wheat, Wild rice, Yam 
 
APPLICATION RATES 
See below for potato, sweet potato, and yam. 
 
For all other seed noted above, use AGST21053 at the rate of 0.5 – 2.1 fluid ounces per 100 lbs. of 
seed. Use the higher rate when conditions favor poor germination such as cool soil temperatures or 
with a low germination seed. Mix AGST21053 with sufficient water to ensure uniform coverage of 
seeds. Improper coverage will minimize product performance. 
 
NOTE: If seed has been treated with AGST21053, do not apply any other product containing 
Cytokinin, Gibberellins or Indole-3-butyric Acid as an in-furrow, band, side dress or mark out 
application. 
 
APPLICATION METHODS 
Mechanical Seed Treaters 
Apply the appropriate amount of AGST21053 plus water to a premeasured amount of seed and mix 
thoroughly until all seed are uniformly coated. Uneven or incomplete seed coverage may not give the 
desired level of disease control. Seed can be treated in this manner and stored until used for 
planting. Allow seed to dry before bagging or storing. An approved dye must be added to distinguish 
AGST21053 treated seed and prevent inadvertent use for food, feed or oil purposes as required by 
the Federal Seed Act. Seed treated with this product must be labeled in accordance with all 
NON-AGRICULTURAL USE REQUIREMENTS 
The requirements in this box apply to uses of thi s product that are NOT withi n the scope of the 
Worker Protection Standard for agricultural pesticides (40 CFR Part 170). The WPS applies 
when this product is used to produc e agricultural plants on farms, for ests, nurseries, or 
greenhouses. 
 
Follow personal protective equipment precautions listed.

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applicable requirements of the Federal and State seed laws. DO NOT USE TREATED SEED FOR 
FOOD, FEED OR OIL PURPOSES. 
 
Broadcast Seed Spreader 
Partially fill broadcast spreader with a premeasured amount of seed. Apply the appropriate amount 
of AGST21053 plus water on the surface of the seed. Mix with a stick or paddle until all seed are 
coated. Repeat procedure until broadcast spreader is filled. DO NOT USE TREATED SEED FO R 
FOOD, FEED OR OIL PURPOSES. Treat only those seeds needed for immediate use and planting. 
 Do not store excess treated seed beyond planting time. 
 
Tank Mixes 
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. Confirm physical compatibility, seed 
safety, seed safety in stored seed, and biological efficacy before tank mixing with other seed 
treatment products. This product cannot be mixed with any product that contains a label prohibiting 
such mixing. 
 
Uneven or incomplete seed coverage may not give the desired level of disease control. An approved 
dye must be added to distinguish AGST21053 treated seed and prevent inadvertent use for food, 
feed or oil purposes as required by the Federal Seed Act. Seed can be treated in this manner and 
stored until used for planting. Allow seed to dry before bagging or storing. Seed treated with this 
product must be labeled in accordance with all applicable requirements of the Federal and State 
seed laws. DO NOT USE TREATED SEED FOR FOOD, FEED OR OIL PURPOSES. 
 
POTATO, SWEET POTATO, YAM 
Potatoes: 
Choose one of the following methods: 
Dip potato seed pieces in a solution of 1-part AGST21053 to 710 parts water (0.2 fluid ounces/gal. of 
water) for 30 to 60 seconds or spray seed pieces with the above solution so that seed pieces are 
covered and thoroughly wetted. AGST21053 can be used with a fungicide program. 
OR 
Use 0.25 to 0.525 fluid ounces (volumetric measurement AGST21053 per 100 lbs. of cut seed 
pieces). Treat seed pieces immediately after they have been cut. Apply so that the cut seed pieces 
are thoroughly covered. AGST21053 can be mixed with other seed treatments and carriers such as 
fir and alder bark to ensure uniform coverage. 
 
NOTE: If seed has been treated with AGST21053, do not apply any other product containing 
Cytokinin, Gibberellins or Indole-3-butyric Acid as an in-furrow, band, side dress or mark out 
application. 
 
S
weet Potatoes and Yams: 
Dip potato slips in a solution of 1-part AGST21053 to 710 parts water (0.2 fluid ounces/gal. of water) 
for 30 to 60 seconds. AGST21053 can be used with a fungicide program. 
 
NOTE: If seed has been treated with AGST21053 do not apply any other product containing 
Cytokinin, Gibberellins or Indole-3-butyric Acid as an in-furrow, band, side dress or mark out 
application. 
 
 
 STORAGE AND DISPOSAL 
Do not contaminate water, food, or feed by storage or disposal. 
Pesticide Storage: Protect from freezing. Store out of direct sunlight.

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Pesticide Disposal: Wastes resulting from the use of this product may be disposed of on site or at 
an approved waste disposal facility. 
Container Handling: Use label language appropriate for container size and type. 
Nonrefillable containers. Do not reuse or refill this container. Clean container promptly after 
emptying. 
Nonrefillable con tainer equal to or less than 5 gallons. Triple rinse as follows: Empty th e 
remaining contents into application equipment or a mix tank and drain for 10 seconds after the flow 
begins to drip. Fill the container ¼ full with water and recap. Shake for 10 seconds. Pour rinsate 
into application eq uipment 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 offer for 
recycling or reconditioning or puncture and dispose of in a sanitary landfill, or by incineration, or if 
allowed by state and local authorities, by burning. If burned, stay out of smoke. 
Nonrefillable container greater than 5 gallons. Triple rinse as follows: Empty the rem aining 
contents into application equipment or a mix tank. Fill the container ¼ full with water. Replace and 
tighten closures. Tip container on its side and roll it back and forth, ensuring at least one complete 
revolution, for 30 seconds. Stand the container o n its end and tip it back and forth several times. 
Tip 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 l ater use or disposal. Repeat this 
procedure two more times. Then offer for re cycling or reconditioning or puncture and dispose of in 
a sanitary landfill, or by incineration, or if allowed by state and local authorities, by burning. If 
burned, stay out of smoke. 
Refillable container. Refill this container with pesticide only. Do not reuse this container for any 
other purpose. Cleaning the container before final disposal is the responsibility of the person 
disposing of the container. Cleaning before refilling is the responsibility of the re filler. To clean the 
container before fi nal disposal, empty the remaining contents from this container into application 
equipment or mix tank. Fill the container about 10 percent full with water. Agitate vigorously or 
recirculate water with the pump for 2 minutes. Pour or pump rinsate into appli cation equipment or 
rinsate collection system. Repeat this rinsing procedure two more times. Then offer for recy cling 
or reconditioning or puncture and dispose of in a sanitary landfill, or by incineration, o r if allowed by 
state and local authorities, by burning. If burned, stay out of smoke. 
 
FOR CHEMICAL EMERGENCY: Spill, leak, fire, exposure or accident, call 
CHEMTREC 1-800-424-9300. 
 
WARRANTY DISCLAIMER 
The directions for use of this product must be fol lowed carefully. TO THE EXTENT CONSISTENT 
WITH APPLICABLE LAW, (1) THE GOODS DELIVERED TO YOU ARE FURNIS HED “AS IS” BY 
MANUFACTURER OR SELLER AND (2) MANUFACTURER AND SELLER MAKE NO 
WARRANTIES, GUARANTEES, OR REPRESENTATIONS OF ANY KIND TO BUYER OR USER, 
EITHER EXPRESS OR IMPLIED, OR BY USAG E OF T RADE, STATUTORY OR OTHERWISE, 
WITH REGARD TO THE PRODUCT SOLD, INCLUDING, BUT N OT LIMITED TO 
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, USE, OR ELIGIBILITY OF THE 
PRODUCT FOR ANY PARTICULAR TRADE USAG E. U NINTENDED C ONSEQUENCES, 
INCLUDING BUT NOT L IMITED TO INEF FECTIVENESS, MAY RESULT BECAUSE OF SUCH 
FACTORS AS THE PRESENCE O R A BSENCE OF OTHER MATERIALS USED IN 
COMBINATION WITH THE GOODS, OR THE MANNER OF USE OR APPLICATION, INCLUDING 
WEATHER, ALL OF W HICH ARE BEYOND THE CONTROL OF MANUFACTURE R OR SELLER 
AND ASS UMED B Y BUYER OR USER. THIS WRITING CONTAINS ALL OF THE 
REPRESENTATIONS AND AGREEMEN TS BETWEEN BUYER, M ANUFACTURER A ND 
SELLER, AND NO PERSON OR AGENT OF MANUFACTUR ER OR SELLER HAS ANY 
AUTHORITY TO MAKE ANY REPRESENTATION OR WARRANTY OR AGREEMENT RELATING 
IN ANY WAY TO THESE GOODS.

6 
LIMITATION OF LIABILITY 
TO THE EXTENT CONSISTENT WITH APP LICABLE LAW, IN NO EVENT SHALL 
MANUFACTURER OR SELLER BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL 
DAMAGES, OR FOR DAMAGES IN THE NATURE OF PENALTIES R ELATING TO THE GOODS 
SOLD, INCLUDING USE, APPLIC ATION, HANDLING, AND DISPOSAL. MANUFACTURER OR 
SELLER SHALL NOT BE LIABLE TO BUYE R OR USER BY WAY OF INDEMNIFICATION TO 
BUYER OR TO CUSTOMERS OF BUYER, IF ANY, OR F OR ANY DAMAGES OR SUMS OF 
MONEY, CLAIMS OR DEMANDS WHATSOEVER, RESULTING FROM OR BY REASON OF, OR 
RISING OUT OF THE MISUSE , O R FAILURE TO FOLLOW LABEL WARNINGS OR 
INSTRUCTIONS FOR USE, OF THE GOODS SOLD BY MANUFACTURER O R SELLER TO 
BUYER. ALL SUCH RI SKS S HALL BE ASSUME D BY THE BUYER, USER, OR ITS 
CUSTOMERS. T O THE EXTENT CONSISTENT WITH APPLIC ABLE LAW, BUYER’S OR 
USER’S EXCLUSIVE REMEDY, AND MANUFACTURER’S OR S ELLER’S TOTAL LIABILITY 
SHALL BE FOR DAMAGES NOT EXCEEDING THE COST OF THE PRODUCT. 
 
If you do not agree with or do not accept any of directions for use, the warranty disclaimers, or 
limitations on liability, do not use the product, and return it unopened to the Seller, and the 
purchase price will be refunded.