Detailed Product Description
Insecticide:Methomyl 90% SP
Composition Methomyl is a mixture of (Z)- and (E)- isomers, the former predominating.
Mol. wt. 162.2
M.f. C5H10N2O2S
Form Colourless crystals, with a slight sulfurous odour.
M.p. 78-79
V.p. 0.72 mPa (25 )
KOW logP = 0.093 Henry 2.13 ?10-6 Pa m3 mol-1 S.g./density 1.2946 (25 )
Solubility In water 57.9 g/l (25 ). In methanol 1000, acetone 730, ethanol 420, isopropanol 220, toluene 30 (all in g/kg, 25 ). Sparingly soluble in hydrocarbons.
Stability Stable in water for 30 d (pH 5 and 7); DT50 c. 30 d (pH 9). Stable up to 140 . Stable to sunlight when exposed for 120 d.
Biochemistry Cholinesterase inhibitor.
Mode of action :
Systemic insecticide and acaricide with contact and stomach action.
Uses :
Control of a wide range of insects (particularly Lepidoptera, Hemiptera, Homoptera, Diptera and Coleoptera) and spider mites in fruit, vines, olives, hops, vegetables, ornamentals, field crops, cucurbits, flax, cotton, tobacco, soya beans, etc. Also used for control of flies in animal and poultry houses and dairies.
Phytotoxicity :
Non-phytotoxic when used as recommended, except to some varieties of apple.
