Physical and chemical property: Melting point:78-79℃.Vapor pressure: 6.67mPa(25℃),Density(25/40℃)1.295g/cm3,soluble in acetone, methyl alcohol, chloroform. It's not stable in acidic and alkali condition. Methomyl is a white, crystalline solid with a slight sulfurous odor.
Application: Methomyl was introduced in 1966 as a broad spectrum insecticide. It is also used as an acaricide to control ticks and spiders. It is used for foliar treatment of vegetable, fruit and field crops, cotton, commercial ornamentals, and in and around poultry houses and dairies. It is also used as a fly bait. Methomyl is effective in two ways: (a) as a "contact insecticide, " because it kills target insects upon direct contact, and (b) as a "systemic insecticide" because of its capability to cause overall "systemic" poisoning in target insects, after it is absorbed and transported throughout the pests that feed on treated plants. It is capable of being absorbed by plants without being "phytotoxic" or harmful, to the plant.