Files
crop-chem-docs/corpus/epa_ppls/524-453.md
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justin a97107de46
Image rebuild (skip scrape) / build (push) Failing after 1h37m12s
docker: production image + Gitea Actions for monthly refresh
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>
2026-05-24 12:32:41 -04:00

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This file contains invisible Unicode characters
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# HYBREX 2LC CHEMICAL HYBRIDIZING AGENT
- EPA Reg No: **524-453**
- Registrant: BAYER CROPSCIENCE, LLC
- Signal word: Caution
- Active ingredients: Fenridazon (21.9%)
- Label accepted: 1986-03-24
- Source PDF: https://www3.epa.gov/pesticides/chem_search/ppls/000707-00178-19860324.pdf
---
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MAR 2 41986
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EP .. t\ Reg. No. KEEP OUT OF REACH OF CHILDREN'
CAUTION
JOTICII .afora u.inC this product. ra.d the entira Condition. of Uae and Warranty. Direction. for
U.e. U.e ,rec.ution. and Storace an~ Di.po.al In.tructionl. If the Condition. of Sale and Warranty
ara DOt acceptable. return tba product unopeaad within thirty day. of purcha.e to tha placa of purche.e.
DVlIlOlDClMTAJ. MAZAIDS
~eap out of lakes, .tream. or pond.. Do not contaminate water by cleaninc of equipment or di.po.al
of va.te.. Po not .pply when weather condition. favor drift.
StoaAGl AJID DISPOSAL
Do not cont .. fnate v.ter, food or teed by stor.ge or disposal.
PISTICIDI DISPOSAL
Pesti~fde, apray .ixture or rinaate that clnnot be usrd according to label instructions must be dis­
po.ed of accordlnl to 'ederal, State or local procedure. under the Re.ource Coneervatlon and r·eovery
Act.
COIftAIla DISPOSAL
Triple rln.e (or equivalent) and puncture and diapose of in a .anttary landfill._
ACTIVI IMCUDIENT
P'f:NRI DAZON
Pot ••• iu. 1.(p-chlorophenyl)·1.~-dihydro-6-~ethyl-~­
oxopYTldazlne- 3-carboxy 1. te ••••.••••••••••.••• " • " • ..•. •• 21.9't*
INERT INCREDIENTS ••.••••••••••••••••••••••••• "' ••••• " •••••• 78.14
lUO_O'I,
* Equivalent to 2 lba. active ingredient per caUon
EPA REG tlO.
IPA ESt NO. 707-PA-2 •
Copyri,ht 1"83 Rohm and Ha .. COIIpany
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HYBREX 2LC is a chemical hybridizing agent which can completely suppress
pollen development in wheat. This property makes it possible to use HYBREX to
produce hybrid wheat. HYBREX is an effective chemical hybridizing agent in a
broad spectrum of hard red, soft red and white winter wheat as well as hard
red spring wheat cultivars.
HYBREX 2LC chemical hybridizing agent is formulated as a liquid concentrate
contai~iQg 2 pounds of active ingredient per gallon of product. The use of
TRITONlR} AG-9B or comparable 80% active nonionic surfactant, cleared for
application on wheat, is essential. The surfactant should be used at a rate
of 1 to"2 quarts per 100 gallons of spray mixture. Thorough spray coverage of
wheat foliage is essential. The use of a nonionic surfactant aids spray
coverage and wetting of foliage and may improve uptake. For the dryer western
wheat belt areas the addition of 2 to 4 quarts of nonionic surfactant per 100
gallons of spray mixture is required.
Mixing
Apply HYBREX 2LC chemical hybridizing agent at a rate of 2 to 10 pints (0.5 to
2.5 lb. active ingredient) per acre. FOR OPTIMUM MALE STERILITY CONSULT YOUR
ROHM AND HAAS SEEDS INC. TECHNICAL REPRESENTATIVE FOR SPECIFIC USE RATES FOR
EACH INDIVIDUAL FEMALE PARENT AT THE RECOMMENDED GROWTH STAGE OF DEVELOPMENT.
Fill the spray tank about two-thirds full with water. Add the required amount
of HYBREX 2LC chemical hybridizing agent and Tk,rON AG-9B, mix thoroughly and
continue filling the spray tank. Maintain sufficient agitation during wixing
and spraying to insure a uniform spray mixture.
Application
Apply HYBREX 2LC chemical hybridizing agent to wheat with ground equipment
only. Use low pressure, low drift flat fan spray nozzles. A shield should be
mounted on each end of the spray boom to prevent direct spraying of outer rows
of male parent strips. Apply HYBREX 2LC only to the female parent which is
planted in alternating strips between the male parent strips. Calibrate spray
equipment to deliver 20 to 50 gallons of spray mixture per acre. A spray
pressure of 15-30 psi at the nozzle tip is recommended when using low
pressure, low drift flat fan spray nozzles. Adjust the height of the boom
above the wheat to give complete coverage of foliage. The high gallonage will
promote necessary coverage of foliage and low pressure will reduce drift onto the male parent strips. For further information on optimum spray pressures
for specific nozzles refer to manufacturer charts for recommendations.
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Timing . , ... .. ~- ..
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Apply HYBREX 2lC chemical hybridizing agent between the initiation of jOinting ..•.
and flag leaf tip emergence stages I>f growth. Do not apply HYBREX 2LC 'later ..... .
than 7r days before harvest. The rate at which plants reach the prefer:r:~d •• ' •.
growth is dependent upon the factors such as variety, temperature and .:
available soil moisture. Consequently, it is necessary to pay close attention
to development stages after the wheat enters its early spring vigorous growth
phase. For best results consult your Rohm and Haas Seeds Inc. technical
representative for specific use rates for each individual female parent at
different growth stages.
Extreme or changing environmental conditions at spraying time should be
avoided if possible. For best results, delay spraying for a day or more
following a freeze, significant rainfall or other drastic weather changes. If
waiting is likely to result in abandoning a field, then consult your Rohm and
Haas Seeds Inc. technical representative for specific use rates for each
individual parent at different soil moisture levels.
Use Restrictions
Do not plant subsequent crops, other than wheat or corn in treated areas
within 12 months of the last application of HYBREX 2LC c~emical
hybridizing agent. Corn may be planted 60 days after the last application.
Do not yraze treated crop or use for forage or fodder.
CONDITIONS OF USE AND WARRANTY
~ Rohm and Haas warrants that the product conforms to its chemical description
and is reasonably fit for the purpose stated on the label only when used in
accordance with label directions under normal conditions of use. ROHM AND
HAAS MAKES NO OTHER EXPRESS OR IMPLIED WARRANTIES EITHER OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR USE. Crop injury, ineffectiveness or other
unintended consequences resulting from such factors as failure to follow label
directions, weather or soil conditions, presence of other materials, disease,
pests, drift to other crops or property, handling, storage and manner of use
are beyond the control of Rohm and Haas. All such risks will be assumed by
the User. In no case will Rohm and Haas be held liable for consequential,
special or indirect damages resulting from the use or handling of this product.
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