| 摘要 |
<p>The invention provides an aphicidal composition suitable for use as a concentrate for the preparation of a foliar spray, characterised in that the composition is a slow-release emulsifiable concentrate comprising, as active ingredient, an aphicide selected from the group of aphicides consisting of pirimicarb, dimethoate, demeton-S-methyl, heptenophos, 1-(dimethylcarbamoyl)-3-t-butyl-5-carboethoxymethyl-thio-1H-1,2,4-triazol e, acephate, tefluthrin, chlorpyrifos, monocrotophos, fenitrothion, methomyl, oxydemeton-methyl, omethoate, pirimiphos-methyl, pirimiphos-ethyl, triazophos, profenofos, permethrin, cypermethrin, lambda-cyhalothrin, menazon and phosalone, a carrier solvent and a polymeric substance which is more soluble in the carrier solvent than in water. The invention also provides processes for the preparation of the compositions and a method for their use in preventing or combating aphid infestations of plants.</p> |
