crop-chem-docs/corpus/epa_ppls/524-453.md

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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I n. ." ." .J:. r .t L J.J MAR 2 41986 i U:-.-'-- :', . ~ .";Iollnaect!d.:ie. Fur. -. :'. =,., nticide Act, .... - - •. • ~ - pestreide te~'LIJ;cd u;J.1! 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 Pestifde, 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 .- . ROHM IHAAS .. -. tin COtn'!NTS 5 CALS (l8.93 L) a . . . -J 0 -..) \

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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.

( ......... f , If t · .. .. , I .... .... • ••• [J' . . .. .. · . . , . , . • • Timing . , ... .. ~- .. . .... , 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 cemical 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. 4