Active ingredient in Spectracide Product and other brands Acephate. Active ingredient in Orthene. The bait is labeled for use in rangeland, wasteland, distchbanks and roadsides. These products contain spores of a protozoan called Nosema locustae formulated in a bait. Grasshoppers consuming the bait become infected by the Nosema organism.
Some immature grasshoppers die while adults often survive but females lay fewer eggs.
Nosema baits act too slowly and kill too few grasshoppers to be much value when the need for control is immediate. Floating row covers can protect vegetables, flower gardens, small fruit trees and other small areas from grasshoppers. These lightweight fabrics let sunlight in while protecting plants from insects and cold. What insecticides can be used on pastures and hayfield. Malathion 57 EC and malathion ULV are labeled and have no grazing or harvest restrictions.