Methomyl-40%SC is a formulation of INSECTICIDES.Methomyl is a broad-spectrum insecticide that is used to kill insect pests. Methomyl is registered for commercial/professional use under certain conditions on sites including field, vegetable, and orchard crops; turf (sod  farms only);  livestock  quarters; commercial premises; and refuse containers. Products containing 1% Methomyl are available to the general public for retail sale, but more potent formulations are classified as restricted-use pesticides: not registered for  homeowner  or non-professional application. However, Heliothis virescens developed a resistance to methomyl within 5 years.Other species like Helicoverpa assulta also developed resistance after exposure