is dimethoate systemic
General Information. Dimethoate is a systemic and contact organophosphorus insecticide registered for use in the U.S. in 1962 and used on several field grown agricultural crops (e.g., leaf greens, citrus, and melons), tree crops, and ornamentals.Residential and non-agricultural uses were cancelled in 2000.imethoate is absorbed from the gastrointestinal tract, the lungs, and through the skin. General population exposure to dimethoate or omethoate can occur by eating foods treated with dimethoate or by drinking water.