METHOMYL ( 99TC,97TC,90SP,20 EC )
COMMONNAME:Methomyl
CHEMICAL NAME:S-methyl N-(methylcarbaoyloxy)thioacetimidate
PHYSICAL AND CHEMICAL PROPERTIES:Pure product is white crystal,with a slight sulfurous,m.p.78-79oC,d4251.2946,V.P.6.65mPa(25oC)is:58g/kg water;720g/kg acetone;420g/kg ethanol;1kg/kg methanol;30g/kg toluene.Technical is yellowish crystal Stablity:its aqueous solution decomposes slowly at room temperature,more rapidly in alkaline media;in sunlight or a t higher temperatures,decomposes rapidly in soil.
TOXICITY:Acute oral LD50 of pure product to male rats is 17mg/kg,to female rats 24mg/kg,Acute percu-taneous LD50 to male rabbits is >5000mg/kg,it's irritative to eyes of rabbits but not to skin of guinea-pigs.ADI for man is 0.03mg/kg body weight.
FORMULATION AND SPECIFICATION:
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Technical
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20EC
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Appearance
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yellowish crystal
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yellowish oily liquid
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Methomyl content%(m/m)
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97.0
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20.0min
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Acidity(asH2SO4)%(m/m)
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0.1 max
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0.3 max
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Moisture%(m/m)
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0.5 max
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0.4 max
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Emulsion stability
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qualified
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PACKING:In iron drums with plastic bag inside,100kg net each.(for technical). 100ml×100 bottles/case,200ml×50 bottles/case(for 20EC)
USES:It is used to contrlol many kinds including:Cotton aphid,American bollworn, black cutworms,stalk borers,cabbage aphids,cabbage caterpillars,rice fulgorids and thrips on field crops,cotton,grapes,cereal crops,maize and sugar beet, vegetables, ornamentals and etc.
PRECAUTION:
1.Avoid being poisoning,if one got infected,use Atropine to treat.
2.Application is forbidden in 7 days before harvest.
3.It can not be mixed with alkaline pesticide and fertilizer.
THE SCALE,METHOD AND RECOMMENDATORY RATE OF APPLIATION:(a.i)
Crop
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insects
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recommendatory rate
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method of application
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cotton
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Aphid,Pink bollworn
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300-600 g/ha
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water 1500 times, spraying
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cabbage
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Common cabbage worn, etc
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200-400 g/ha
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water 2000 times, spraying
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rice
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Nilaparvata lugens stal,
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300-600 g/ha
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water 1800 times, spraying
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Rice leaf beetle
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200-400 g/ha
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water 2500 times, spraying
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tobacco
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Tobacco green peach aphid
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150-250 g/ha
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water 3000 times, spraying
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citrus
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Citrus leaf miner
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150-600 g/ha
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water 3000 times, spraying
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other kinds of crops
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other kinds of pests
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300-600 g/ha
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water 1000-3000 times, spraying
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