Detailed Product Description Insecticide:Methomyl 90% SP Composition Methomyl is a mixture of (Z)- and (E)- isomers, ... , 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.