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docker: production image + Gitea Actions for monthly refresh
Image rebuild (skip scrape) / build (push) Failing after 1h37m12s
Details

Browse Source 
Dockerfile: self-contained image with corpus + Chroma + BM25 baked
in. Drawbar's compose pulls + runs without volume mounts. Built from
sources.json (labels schema), PRODUCT_NAME=crop_chem by default,
HYBRID_SEARCH=true (always-on for production quality). RERANK_URL +
OLLAMA_URL get set at compose time.

.gitea/workflows/refresh.yml: monthly cron (1st @ 06:00 UTC) does
full scrape → reindex → image push. Scrapes Bayer (~30 min) +
EPA PPLS row-crop filtered (~7h). Skips reindex+push if no corpus
diff. Tags pushed: :latest, :<sha12>, :corpus-<YYYY.MM.DD>.

.gitea/workflows/image-only.yml: on-demand or auto on code-only
pushes to main (paths: docs_mcp/, rag/, scrape/, requirements.txt,
Dockerfile, sources.json). Reindexes from committed corpus, builds
image, pushes. ~10 min vs ~9h full refresh.

.gitignore: corpus/ now COMMITTED (4,159 labels, 265 MB of .md +
sidecars). Lets image-only.yml rebuild indexes without re-scraping.
chroma/ + bm25/ still gitignored (regenerable binary indexes).

.dockerignore: drops venv, eval results, PLAN/README/CLAUDE.md,
deploy/, .git/ — keeps the image lean. corpus + chroma + bm25
explicitly NOT in dockerignore (those go INTO the image).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Justin Paul
2026-05-24 12:32:41 -04:00
parent 1a45280e45
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# A23883 ST
- EPA Reg No: **100-1732**
- Registrant: SYNGENTA CROP PROTECTION, LLC
- Signal word: Caution
- Active ingredients: Picarbutrazox (0.34%); Thiamethoxam (16.8%); Fludioxonil (0.84%); Metalaxyl-M (2.52%); Azoxystrobin (0.67%); Sedaxane (0.84%)
- Label accepted: 2023-03-07
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000100-01732-20230307.pdf
---
Registration Notice Conditional v.20220527
U.S. ENVIRONMENTAL PROTECTION AGENCY
Office of Pesticide Programs
Registration Division (7505T)
1200 Pennsylvania Ave., N.W.
Washington, D.C. 20460
EPA Reg. Number:
100-1732
Date of Issuance:
3/7/23
NOTICE OF PESTICIDE:
X Registration
Reregistration
Term of Issuance:
Conditional
(under FIFRA, as amended)
Name of Pesticide Product:
A23883 ST
Name and Address of Registrant (include ZIP Code):
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, NC 27419
Note: Changes in labeling differing in substance from that accepted in connection with this registration must be submitted to and a ccepted 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 (FIFRA).
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.
Continues page 2
Signature of Approving Official:
Shaja B. Joyner, Product Manager 20
Fungicide-Herbicide Branch
Registration Division 7505T
Date:
3/7/23
EPA Form 8570-6
Page 2 of 2
EPA Reg. No. 100-1732
Decision No. 583972
2. The data requirements for storage stability and corrosion characteristics (Guidelines 830.6317
and 830.6320) are not satisfied. You have 18 months from the date of registration to provide
these data.
3. Make the following label changes before you release the product for shipment:
• Revise the EPA Registration Number to read, “EPA Reg. No. 100-1732.”
4. 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 FIFRA and is subject to review by the Agency. If the website is
false or misleading, the product would be misbranded and unlawful to sell or distribute under FIFRA
section 12(a)(1)(E). 40 CFR 156.10(a)(5) lists 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.
The record for this product currently contains the following CSF(s):
• Basic CSF dated 03/15/2022
• Alternate CSF 1 dated 03/15/2022
If you have any questions, please contact Lindsay DeMers via email at demers.lindsay@epa.gov.
Enclosure: stamped “accepted” label
A23883 ST
Page 1
[MASTER]
THIAMETHOXAM GROUP 4A INSECTICIDE
MEFENOXAM GROUP 4 FUNGICIDE
SEDAXANE GROUP 7 FUNGICIDE
AZOXYSTROBIN GROUP 11 FUNGICIDE
FLUDIOXONIL GROUP 12 FUNGICIDE
PICARBUTRAZOX GROUP U17 FUNGICIDE
A23883 ST
Insecticide with Fungicides
A seed treatment product for protection against damage from listed early-season insect pests
and diseases of soybean
Active Ingredients:
Thiamethoxam
1 .......................................................................................................16.8%
Mefenoxam2 ..............................................................................................................2.52%
Fludioxonil3 ................................................................................................................0.84%
Sedaxane4 .................................................................................................................0.84%
Azoxystrobin5 .............................................................................................................0.67%
Picarbutrazox6 ...........................................................................................................0.34%
Other Ingredients: 77.99%
Total: 100.00%
1CAS No. 153719-23-4
2CAS Nos. 70630-17-0 and 69516-34-3
3CAS No. 131341-86-1
4CAS No. 874967-67-6
5CAS No. 131860-33-8
6CAS No. 500207-04-5
A23883 ST is a flowable concentrate for seed treatment containing 1.60 lb thiamethoxam,
0.24 lb mefenoxam, 0.08 lb fludioxonil, 0.08 lb sedaxane, 0.06 lb azoxystrobin, and 0.03 lb
picarbutrazox per gallon.
KEEP OUT OF REACH OF CHILDREN.
CAUTION
See additional precautionary statements and directions for use in booklet.
EPA Reg. No. 100-XXXX
EPA Est. No.
__________
Net Contents
[Batch Code: _____ ] (For nonrefillables only.)
03/07/2023
100-1732
A23883 ST
Page 2
TABLE OF CONTENTS
1.0 FIRST AID
2.0 PRECAUTIONARY STATEMENTS
2.1 Hazards to Humans and Domestic Animals
2.2 Personal Protective Equipment (PPE)
2.3 User Safety Requirements
2.4 User Safety Recommendations
2.5 Environmental Hazards
2.5.1 Pollinator Precautions
2.5.2 Groundwater Advisory
2.6 Physical and Chemical Hazards
3.0 PRODUCT INFORMATION
3.1 Resistance Management
3.1.1 Insecticide Resistance Management
3.1.2 Fungicide Resistance Management
4.0 APPLICATION DIRECTIONS
4.1 Tank Mixtures
5.0 ROTATIONAL CROP RESTRICTIONS
6.0 RESTRICTIONS
7.0 SEED CONTAINER LABEL REQUIREMENTS
8.0 SEED TREATMENT DIRECTIONS
8.1 Soybean
8.2 Soybean Treatment for Protection Against Seed Storage Pests
9.0 STORAGE AND DISPOSAL
10.0 CONDITIONS OF SALE AND LIMITATION OF WARRANTY AND LIABILITY
A23883 ST
Page 3
1.0 FIRST AID
FIRST AID
If swallowed • Call a poison control center or doctor immediately for treatment
advice.
• Have a 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.
If on skin • Take off contaminated clothing.
• Rinse skin immediately with plenty of water for 15-20 minutes.
• 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
For 24-Hour Medical Emergency Assistance (Human or Animal)
Or Chemical Emergency Assistance (Spill, Leak, Fire or Accident),
Call
1-800-888-8372
2.0 PRECAUTIONARY STATEMENTS
2.1 Hazards to Humans and Domestic Animals
CAUTION
Harmful if swallowed. Harmful if absorbed through skin. 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.
2.2 Personal Protective Equipment (PPE)
Applicators and other handlers must wear:
• Long-sleeved shirt and long pants
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥14 mils, neoprene
rubber ≥14 mils, nitrile rubber ≥14 mils, polyvinyl chloride (PVC) ≥14 mils, or Viton™
≥14 mils
• Shoes plus socks
A23883 ST
Page 4
2.3 User Safety Requirements
Follow manufacturer’s instructions for cleaning/maintaining PPE. If no such instructions for
washables exist, use detergent and hot water. Keep and wash PPE separately from other
laundry.
2.4 User Safety Recommendations
Users should:
• 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.
2.5 Environmental Hazards
This pesticide is toxic to wildlife and freshwater and estuarine/marine fish and highly toxic to
aquatic invertebrates. DO NOT contaminate water when disposing of equipment washwater
or rinsate. Exposed treated seed may be hazardous to wildlife.
2.5.1 Pollinator Precautions
Thiamethoxam is highly toxic to bees exposed to direct treatment, and effects may be
possible as a result of exposure to translocated residues in blooming crops.
2.5.2 Groundwater Advisory
Azoxystrobin can be persistent for several months or longer. Azoxystrobin, a degradate of
azoxystrobin, and mefenoxam are known to leach through soil into groundwater under certain
conditions as a result of label use. Fludioxonil and thiamethoxam have properties and
characteristics associated with chemicals detected in groundwater. These chemicals may
leach into groundwater if used in areas where soils are permeable, particularly where the
water table is shallow, and may result in groundwater contamination.
2.6 Physical and Chemical Hazards
DO NOT mix or allow to come in contact with an oxidizing agent; a hazardous chemical
reaction may occur.
A23883 ST
Page 5
DIRECTIONS FOR USE
It is a violation of Federal Law to use this product in a manner inconsistent with its labeling.
Use is permitted in commercial seed treatment facilities only. DO NOT use for at-plant
applications (e.g., hopper box, planter box). This product is to be applied as a water-based
slurry through standard slurry- or mist-type commercial seed treatment equipment.
DO NOT apply this product in a way that will contact workers or other persons, either directly
or through drift. Only protected handlers may be in the area during application. For any
requirements specific to your State or Tribe, consult the agency responsible for pesticide
regulation.
FAILURE TO FOLLOW DIRECTIONS, RESTRICTIONS, AND PRECAUTIONS ON THIS
LABEL MAY RESULT IN CROP INJURY; POOR DISEASE CONTROL; AND/OR ILLEGAL
RESIDUES.
Treatment of highly mechanically scarred or damaged seed or seed known to be of low vigor
and poor quality may result in reduced germination and/or reduction of seed and seedling
vigor. Treat a quantity of seed using equipment similar to that planned for treating the total
seed lot. Then conduct germination tests with a portion of this treated seed before
committing the total seed lot to a selected seed treatment.
Due to seed quality, crop or variety sensitivity, and seed storage conditions beyond the
control of Syngenta, no claims are made to guarantee the germination of seed or propagating
material for any crop seed treated with A23883 ST.
Maximum usage when applying metalaxyl- and mefenoxam- containing products to the
same crop within the same season: DO NOT apply more than the maximum yearly total
application rate for the active ingredient as stated on the label of the product containing the
lowest yearly total on that crop.
A23883 ST
Page 6
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 (WPS).
DO NOT enter or allow worker entry into treated areas during the restricted-entry
interval (REI) of 48 hours. Exception: If the seed is treated with the product and the
treated seed is planted, 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
• Chemical-resistant gloves made of barrier laminate, butyl rubber ≥14 mils, nitrile rubber
≥14 mils, neoprene rubber ≥14 mils, polyvinyl chloride (PVC) ≥14 mils, or Viton ≥14 mils
• Shoes plus socks
3.0 PRODUCT INFORMATION
A23883 ST is a broad-spectrum seed treatment that consists of five fungicide active
ingredients (azoxystrobin, fludioxonil, mefenoxam, picarbutrazox, and sedaxane) as well as
one insecticide active ingredient (thiamethoxam). Each active ingredient has a different
mode of action. This seed treatment protects against damage from listed early-season
insects and soil-borne and seed-borne diseases of soybeans.
Azoxystrobin fungicide is active against Rhizoctonia and Pythium spp., seed-borne white
mold (Sclerotinia sclerotiorum) as well as other listed seed-borne diseases causing decay,
damping-off and seedling blight.
Fludioxonil fungicide protects against seed-borne and soil-borne Fusarium and Rhizoctonia
spp. that cause seed decay, damping-off, and seedling blight. This active ingredient also
provides protection from seed-borne Diaporthe-Phomopsis disease complex, sometimes
referred to as pod and stem blight (caused by Phomopsis longicolla and Diaporthe
phaseolorum). Fludioxonil also suppresses seed-borne Sclerotinia spp.
Mefenoxam fungicide provides protection against Pythium damping-off and early-season
Phytophthora.
A23883 ST
Page 7
Picarbutrazox provides early-season protection against Pythium and Phytophthora spp. that
cause seed rot and damping-off.
Sedaxane fungicide protects against damage from seed decay, seedling blight, and damping-
off caused by Rhizoctonia spp.
Thiamethoxam protects against damage from listed insect pests.
3.1 Resistance Management
3.1.1 Insecticide Resistance Management
For resistance management, please note that A23883 ST contains thiamethoxam, a Group
4A insecticide. Any insect population may contain individuals naturally resistant to A23883
ST and other Group 4A insecticides. The resistant individuals may dominate the insect
population if this group of insecticides is used repeatedly in the same fields. Appropriate
resistance-management strategies should be followed.
Thiamethoxam is a systemic insecticide belonging to the neonicotinoid class of chemistry
which includes nicotinic acetylcholine receptor (nAChR) agonists.
To delay insecticide resistance, take the following steps:
• Rotate the use of A23883 ST or other Group 4A insecticides within a growing season, or
among growing seasons, with different groups that control the same pests.
• Use tank mixtures with insecticides from a different group that is equally effective on the
target pest when such use is permitted. DO NOT rely on the same mixture repeatedly for
the same pest population. Consider any known cross-resistance issues (for the targeted
pests) between the individual components of a mixture. In addition, consider the following
recommendations provided by the Insecticide Resistance Action Committee (IRAC).
o Individual insecticides selected for use in mixtures should be highly effective and
applied at the rates at which they are individually registered for use against the target
species.
o Mixtures with components having the same IRAC mode of action classification are not
recommended for insect resistance management.
o When using mixtures, consider any known cross-resistance issues between the
individual components for the targeted pest(s).
o Mixtures become less effective if resistance is already developing to one or both active
ingredients, but they may still provide pest management benefits.
o The insect resistance management benefits of an insecticide mixture are greatest if
the two components have similar periods of residual insecticidal activity. Mixtures of
insecticides with unequal periods of residual insecticidal activity may offer an insect
resistance management benefit only for the period where both insecticides are active.
• Adopt an integrated pest management program for insecticide use that includes scouting;
uses historical information related to pesticide use, crop rotation, and record keeping; and
considers cultural, biological, and other chemical control practices.
A23883 ST
Page 8
• Monitor after application for unexpected target pest survival. If the level of survival
suggests the presence of resistance, consult with your local university specialist or
certified pest control advisor.
• Contact your local extension specialist or certified crop advisors for any additional
pesticide resistance management and/or IPM recommendations for the specific site and
pest problems in your area.
For additional information on Insect Resistance Management:
• Contact Syngenta representatives at 1-866-796-4368
• Visit the Insecticide Resistance Action Committee (IRAC) on the web at:
http://www.irac-online.org
Syngenta encourages responsible product stewardship to ensure effective long-term control
of the insect pests on this label.
3.1.2 Fungicide Resistance Management
For resistance management, please note that A23883 ST contains mefenoxam, a Group 4
fungicide; sedaxane, a Group 7 fungicide; azoxystrobin, a Group 11 fungicide; fludioxonil, a
Group 12 fungicide; and picarbutrazox, a Group U17 fungicide. Any fungal population may
contain individuals naturally resistant to A23883 ST and other Group 4, Group 7, Group 11,
Group 12, or Group U17 fungicides. A gradual or total loss of pest control may occur over
time if these fungicides are used repeatedly in the same fields. Appropriate resistance-
management strategies should be followed.
Mefenoxam belongs to the phenylamide class of chemistry which interferes with fungal RNA
synthesis. Sedaxane is a succinate dehydrogenase inhibitor (SDHI) and belongs to the
carboxamide class of chemistry which disrupts cellular respiration and energy generation.
Azoxystrobin belongs to the strobilurin class of chemistry which disrupts cellular respiration
and energy generation. Fludioxonil belongs to the phenylpyrrole class of chemistry which
interferes with osmotic signal transduction. Picarbutrazox belongs to the tetra-zolyloximes
class of fungicides and is not known to be cross-resistant with fungicides that have different
modes of action.
To delay fungicide resistance, take one or more of the following steps:
• Rotate the use of A23883 ST or other Group 4, Group 7, Group 11, Group 12, or Group
U17 fungicides within a growing season sequence with different groups that control the
same pathogens.
• Use tank mixtures with fungicide from a different group that are equally effective on the
target pest when such use is permitted. Use at least the minimum application rate as
labeled by the manufacturer.
• Adopt an integrated disease management program for fungicide use that includes
scouting, uses historical information related to pesticide use, and crop rotation, and which
considers host plant resistance, impact of environmental conditions on disease
development, disease thresholds, as well as cultural, biological and other chemical control
practices.
• Where possible, make use of predictive disease models to effectively time fungicide
applications. Note that using predictive models alone is not sufficient to manage
resistance.
A23883 ST
Page 9
• Monitor treated fungal populations for resistance development.
• Contact your local extension specialist or certified crop advisor for any additional pesticide
resistance-management and/or IPM recommendations for specific crop and pathogens.
• For further information or to report suspected resistance contact Syngenta at 1-866-
Syngent(a) (866-796-4368). You can also contact your pesticide distributor or university
extension specialist to report resistance.
Syngenta encourages responsible product stewardship to ensure effective long-term control
of the fungal diseases on this label.
4.0 APPLICATION DIRECTIONS
Important: Always recirculate A23883 ST thoroughly before using.
Follow the manufacturer’s application instructions for the seed treatment equipment being
used.
The typical density of A23883 ST is 9.51 pounds per gallon. Consult the manufacturer of the
application equipment you plan to use for suitability for this application and for instructions on
operation and calibration of the equipment. Follow the manufacturer’s application instructions
for the seed treatment equipment being used.
Apply A23883 ST as a water-based slurry utilizing standard slurry seed treatment equipment
that provides uniform seed coverage. Seed treaters with atomizers or spinning discs are
highly recommended for better product coverage on the seed. Uneven or incomplete seed
coverage may not give the desired level of insect or disease control. Thoroughly mix the
specified amount of A23883 ST into the required amount of water or liquid inoculant for the
slurry treater and dilution rate to be used.
Certain crops require addition of inoculants when the seed is treated or planted. A23883 ST
is compatible with several liquid inoculant products. Consult the maker of the inoculant
product and a Syngenta Crop Protection representative for directions before applying A23883
ST with inoculants.
Continuous agitation or mixing of the slurry mixture is necessary to prevent settling out of the
solution. Clean out any unused product from the treater after treating or maintain constant
agitation if the leftover slurry will be maintained overnight.
Allow seed to dry before bagging.
Follow planter manufacturer’s specifications for use of talc or other hopper box additives at
planting. Seed must be completely dry before adding to planter.
A23883 ST
Page 10
4.1 Tank Mixtures
A23883 ST mixes easily with water and other water-based seed treatments manufactured by
Syngenta. When mixing with products from other manufacturers, test the compatibility prior
to use by conducting a jar test: mix all intended seed treatments with a proportional amount
of water to achieve the desired slurry mixture in a clear glass container. Mix well and allow
mixture to sit for one hour. Remix and observe for incompatibility.
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.
A23883 ST
Page 11
5.0 ROTATIONAL CROP RESTRICTIONS
• In the event of a crop failure or harvest of a crop grown from seed treated with A23883
ST, the field may be replanted according to the following schedule:
Plantback Interval Table
Immediate Plantback Interval Minimum 30-Day Plantback Interval
Corn (Field, Pop, Seed, Sweet)
Soybean
Alfalfa
Brassica (Cole) Leafy Vegetables Crop
Group 5
Canola
Cereal Grains Crop Group 15, except Corn
Cotton
Cucurbit Vegetables Crop Group 9
Fruiting Vegetables Crop Group 8
Leafy Vegetables Crop Group 4
Legume Vegetables (Succulent or Dried)
Crop Group 6
Mint: Peppermint and Spearmint
Oilseeds: Borage, Crambe, Flax Seed, and
Mustard Seed, Safflower, Sunflower
Onion, Dry Bulb
Peanut
Root and Tuber Vegetables Crop Group 1
Strawberry
Tobacco
• For all other crops, the minimum plantback interval is 120 days from the date of planting
seeds treated with A23883 ST. A cover crop, other than the crops listed above, planted
for erosion control or soil improvement may be planted sooner than the 120-day interval;
however, the crop may not be grazed or harvested for food or feed.
A23883 ST
Page 12
6.0 RESTRICTIONS
• DO NOT use for at-plant applications (e.g., hopper box, planter box). This product is to be
applied as a water-based slurry through standard slurry- or mist-type commercial seed
treatment equipment.
• DO NOT apply this product in a way that will contact workers or other persons, either
directly or through drift.
• DO NOT use for feed, food, or oil purposes.
• Store treated seed away from feed and foodstuffs.
• DO NOT allow children, pets, or livestock to have access to treated seed.
• Wear long-sleeved shirt, long pants and chemical resistant gloves when handling treated
seed.
• Treated seeds exposed on soil surface may be hazardous to wildlife. Cover or collect
treated seeds spilled during loading or planting.
• Treated seed must be planted into the soil at a depth greater than 1 inch.
• Dispose of all excess treated seed. Leftover treated seed may be double sown around
the headland or buried away from water sources in accordance with local requirements.
• DO NOT contaminate water bodies when disposing of planting equipment washwaters.
• Dispose of seed packaging in accordance with local requirements.
• DO NOT use at a rate that will result in more than 0.266 lb thiamethoxam/A (120 g/A) per
calendar year, regardless of type of application (seed treatment, soil, or foliar). DO NOT
use at a rate that will result in more than 0.083 lb thiamethoxam/A (37.8 g/A) per calendar
year as a seed treatment application.
• DO NOT apply more than 0.003 lb azoxystrobin/A (1.5 g /A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.004 lb fludioxonil/A (2.0 g/A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.013 lb mefenoxam/A (5.7 g/A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.004 lb sedaxane/A (2.0 g/A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.017 lb ai/A (7.5 g ai/A) per calendar year of picarbutrazox-
containing products as a seed treatment.
• Soybean seeds treated with this product contain 0.076 mg thiamethoxam/seed, 0.003 mg
azoxystrobin/seed, 0.004 mg fludioxonil, 0.012 mg mefenoxam/seed, 0.004 mg
sedaxane/seed, and 0.0015 mg picarbutrazox/seed.
• DO NOT apply a neonicotinoid insecticide within 45 days of planting soybean seeds
treated with this product.
• This treated seed may be planted on the same acres up to 2 times per year.
A23883 ST
Page 13
7.0 SEED CONTAINER LABEL REQUIREMENTS
The Federal Seed Act requires that containers of treated seeds must be labeled with the
following statements:
• This seed has been treated with azoxystrobin, fludioxonil, sedaxane, mefenoxam, and
picarbutrazox fungicides and thiamethoxam insecticide.
• DO NOT use for feed, food, or oil purposes.
The U.S. Environmental Protection Agency requires the following statements on containers
containing seed treated with A23883 ST:
• Store treated seed away from feed and foodstuffs.
• DO NOT allow children, pets, or livestock to have access to treated seed.
• Wear long-sleeved shirt, long pants and chemical resistant gloves when handling treated
seed.
• Treated seeds exposed on soil surface may be hazardous to wildlife. Cover or collect
treated seeds spilled during loading or planting.
• Treated seed must be planted into the soil at a depth greater than 1 inch.
• Dispose of all excess treated seed. Leftover treated seed may be double sown around
the headland or buried away from water sources in accordance with local requirements.
• Excess treated seed may be used for ethanol production only if (1) by-products are not
used for livestock feed and (2) no measurable residues of pesticide remain in the ethanol
by-products that are used for agronomic practice.
• DO NOT contaminate water bodies when disposing of planting equipment washwaters.
• Dispose of seed packaging in accordance with local requirements.
• Groundwater Advisory: Azoxystrobin, a degradate of azoxystrobin, and mefenoxam are
known to leach through soil into groundwater under certain conditions as a result of label
use. Fludioxonil and thiamethoxam have properties and characteristics associated with
chemicals detected in groundwater. These chemicals may leach into groundwater if used
in areas where soils are permeable, particularly where the water table is shallow.
• Pollinator Precautions: Thiamethoxam is highly toxic to bees exposed to direct
treatment, and effects may be possible as a result of exposure to translocated residues in
blooming crops.
• DO NOT use at a rate that will result in more than 0.266 lb thiamethoxam/A (120 g/A) per
calendar year, regardless of type of application (seed treatment, soil, or foliar). DO NOT
use at a rate that will result in more than 0.083 lb thiamethoxam/A (37.8 g/A) per calendar
year as a seed treatment application.
• DO NOT apply more than 0.003 lb azoxystrobin/A (1.5 g /A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.004 lb fludioxonil/A (2.0 g/A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.013 lb mefenoxam/A (5.7 g/A) per calendar year as a seed
treatment application.
• Maximum usage when applying metalaxyl- and mefenoxam- containing products to
the same crop within the same season: DO NOT apply more than the maximum yearly
total application rate for the active ingredient as stated on the label of the product
containing the lowest yearly total on that crop.
A23883 ST
Page 14
• DO NOT apply more than 0.004 lb sedaxane/A (2.0 g/A) per calendar year as a seed
treatment application.
• DO NOT apply more than 0.017 lb ai/A (7.5 g ai/A) per calendar year of picarbutrazox-
containing products as a seed treatment.
• Soybean seeds treated with this product contain 0.076 mg thiamethoxam/seed, 0.003 mg
azoxystrobin/seed, 0.004 mg fludioxonil, 0.012 mg mefenoxam/seed, 0.004 mg
sedaxane/seed, and 0.0015 mg picarbutrazox/seed.
• DO NOT apply a neonicotinoid insecticide within 45 days of planting soybean seeds
treated with this product.
• This treated seed may be planted on the same acres up to 2 times per year.
• In the event of a crop failure or harvest of a crop grown from seed treated with A23883
ST, the field may be replanted according to the following schedule:
Plantback Interval Table
Immediate Plantback Interval Minimum 30-Day Plantback Interval
Corn (Field, Pop, Seed, Sweet)
Soybean
Alfalfa
Brassica (Cole) Leafy Vegetables Crop
Group 5
Canola
Cereal Grains Crop Group 15, except Corn
Cotton
Cucurbit Vegetables Crop Group 9
Fruiting Vegetables Crop Group 8
Leafy Vegetables Crop Group 4
Legume Vegetables (Succulent or Dried)
Crop Group 6
Mint: Peppermint and Spearmint
Oilseeds: Borage, Crambe, Flax Seed, and
Mustard Seed, Safflower, Sunflower
Onion, Dry Bulb
Peanut
Root and Tuber Vegetables Crop Group 1
Strawberry
Tobacco
• For all other crops, the minimum plantback interval is 120 days from the date of planting
seeds treated with A23883 ST. A cover crop, other than the crops listed above, planted
for erosion control or soil improvement may be planted sooner than the 120-day interval;
however, the crop may not be grazed or harvested for food or feed.
A23883 ST
Page 15
8.0 SEED TREATMENT DIRECTIONS
8.1 Soybean
Target Pests / Diseases
Use Rate
fl oz product per
100 lb of seed
(fl oz product per
140,000 seeds unit)
grams ai per 100 kg
of seed mg ai per seed
Early-season Insect Pests
Aphids, Bean leaf beetle,
Grape colaspis, Leaf
miners, Leaf hoppers,
Mexican bean beetle,
Seed corn maggot, Three-
cornered alfalfa hopper,
Thrips, White grubs, and
Wireworm
Early-season Fungal
Diseases
Seed rot/pre-emergence
damping-off, post-
emergence damping-off,
and seedling blight caused
by Fusarium, Pythium, and
Rhizoctonia spp.
Seedling root rot caused by
Fusarium spp.
Pod and stem blight caused
by seed-borne Diaporthe-
Phomopsis disease
complex
Early-season root rot and
damping-off caused by
Phytophthora spp.
Suppresses seed-borne
Sclerotinia caused by
Sclerotinia sclerotiorum
4.0
(1.87 fl oz/140,000
seeds)
2 g Azoxystrobin
2.5 g Fludioxonil
7.5 g Mefenoxam
1 g Picarbutrazox
2.5 g Sedaxane
50 g Thiamethoxam
65.5 g TOTAL
0.0030 mg Azoxystrobin
0.0038 mg Fludioxonil
0.0113 mg Mefenoxam
0.0015 mg Picarbutrazox
0.0038 mg Sedaxane
0.0756 mg Thiamethoxam
0.099 mg TOTAL
The product rates per 100 lb seed and per 140,000 seed are based on an average seed weight of 3,000
soybeans/lb. If treating seed with a different average seed weight, recalculate the appropriate product
use rate
USE RESTRICTIONS
• Refer to Section 7.0 for additional product use restrictions.
A23883 ST
Page 16
8.2 Soybean Treatment for Protection Against Seed Storage Pests
Target Pests
Use Rate
Fl oz product per 100
lb of seed
(Fl oz product per
140,000 seeds unit)
Grams ai per 100 kg
of seed Mg ai per seed
Seed Storage Pests
Indian Meal Moth
(Plodia interpunctella)
Rice Weevil
(Sitophilus oryzae)
Red Flour Beetle
(Tribolium castaneum)
Lesser Grain Borer
(Rhyzopertha dominica)
4.0
(1.87 fl oz/140,000
seeds)
2 g Azoxystrobin
2.5 g Fludioxonil
7.5 g Mefenoxam
1 g Picarbutrazox
2.5 g Sedaxane
50 g Thiamethoxam
65.5 g TOTAL
0.0030 mg Azoxystrobin
0.0038 mg Fludioxonil
0.0113 mg Mefenoxam
0.0015 mg Picarbutrazox
0.0038 mg Sedaxane
0.0756 mg Thiamethoxam
0.099 mg TOTAL
• Provides protection against listed seed storage pests when applied prior to storage
• If the seed to be treated has existing infestations of stored grain insects, fumigate the seed with a
registered product approved for such use prior to treated with A23883 ST and bagging.
USE RESTRICTIONS
• Refer to Section 7.0 for additional product use restrictions.
A23883 ST
Page 17
9.0 STORAGE AND DISPOSAL
STORAGE AND DISPOSAL
Do not contaminate water, food or feed by storage or disposal.
Pesticide Storage
Store in a cool, dry place. Storage for extended periods above 90°F is not recommended.
Store in original containers only. Keep container closed when not in use. Do not store near
food or feed. In case of spill on floor or paved surfaces, mop and remove to chemical waste
storage area until proper disposal can be made if product cannot be used according to the
label.
Pesticide Disposal
Pesticide wastes are toxic. Improper disposal of excess pesticide, spray mixture, or rinsate is
a violation of Federal Law. If these wastes cannot be disposed of by use according to label
instructions, contact your State Pesticide or Environmental Control Agency, or the Hazardous
Waste Representative at the nearest EPA Regional Office for guidance.
Container Handling [(less than or equal to 5 gallons)]
Non-refillable 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 and drain for 10 seconds after the flow begins to
drip. Fill the container ¼ full with water and recap. Shake for 10 seconds. Pour rinsate into
application equipment or a mix tank or store rinsate for later use or disposal. Drain for 10
seconds after the flow begins to drip. Repeat this procedure two more times. Then offer for
recycling if available or puncture and dispose of in a sanitary landfill, or by incineration, or by
other procedures approved by state and local authorities.
Container Handling [(greater than 5 gallons)]
Non-refillable 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 ¼ full with water. Replace and
tighten closures. Tip container on its side and roll it back and forth, ensuring at least one
complete revolution, for 30 seconds. Stand the container on its end and tip it back and forth
several times. Turn the container over onto its other end and tip it back and forth several
times. Empty the rinsate into application equipment or a mix tank or store rinsate for later
use or disposal. Repeat this procedure two more times. Then offer for recycling if available
or puncture and dispose of in a sanitary landfill, or by incineration, or by other procedures
approved by state and local authorities.
Container Handling [(greater than 5 gallons)]
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 person
refilling. To clean container before final disposal, empty the remaining contents from this
container into application equipment or mix tank. Fill the container about 10 percent full with
water. Agitate vigorously or recirculate water with the pump for 2 minutes. Pour or pump
rinsate into application equipment or rinsate collection system. Repeat this rinsing procedure
two more times. Then offer for recycling if available or puncture and dispose of in a sanitary
landfill, or by incineration, or by other procedures approved by state and local authorities.
CONTAINER IS NOT SAFE FOR FOOD, FEED, OR DRINKING WATER.
A23883 ST
Page 18
10.0 CONDITIONS OF SALE AND LIMITATION 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, presence of other materials or other influencing
factors in the use of the product, which are beyond the control of SYNGENTA CROP
PROTECTION, LLC or Seller. To the extent permitted by applicable law, Buyer and User
agree to hold SYNGENTA and Seller harmless for any claims relating to such factors.
SYNGENTA warrants that this product conforms to the chemical description on the label and
is reasonably fit for the purposes stated in the Directions for Use, subject to the inherent risks
referred to above, when used in accordance with directions under normal use conditions. To
the extent permitted by applicable law: (1) this warranty does not extend to the use of the
product contrary to label instructions, or under conditions not reasonably foreseeable to or
beyond the control of Seller or SYNGENTA, and (2) Buyer and User assume the risk of any
such use. TO THE EXTENT PERMITTED BY APPLICABLE LAW, SYNGENTA MAKES NO
WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE
NOR ANY OTHER EXPRESS OR IMPLIED WARRANTY EXCEPT AS WARRANTED BY
THIS LABEL.
To the extent permitted by applicable law, in no event shall SYNGENTA be liable for any
incidental, consequential or special damages resulting from the use or handling of this
product. TO THE EXTENT PERMITTED BY APPLICABLE LAW, THE EXCLUSIVE
REMEDY OF THE USER OR BUYER, AND THE EXCLUSIVE LIABILITY OF SYNGENTA
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 SYNGENTA OR SELLER, THE
REPLACEMENT OF THE PRODUCT.
SYNGENTA and Seller offer this product, and Buyer and User accept it, subject to the
foregoing Conditions of Sale and Limitation of Warranty and Liability, which may not be
modified except by written agreement signed by a duly authorized representative of
SYNGENTA.
A23883 ST
Page 19
The ALLIANCE FRAME
the SYNGENTA Logo, and the PURPOSE ICON
are Trademarks of a Syngenta Group Company
Viton™ is a trademark of The Chemours Company FC, LLC
©20XX Syngenta
For non-emergency (e.g. current product information), call
Syngenta Crop Protection at 1-866-796-4368.
Manufactured for:
Syngenta Crop Protection, LLC
P.O. Box 18300
Greensboro, North Carolina 27419-8300
A23883 ST XXXX NEW-C 0422-CL – jeb – 03/02/2023
000100-XXXXX.20220414C.A23883_ST_NEW_APR2022-CL.pdf