GAUCHO (Imidacloprid) is an insecticide from a new class of chemistry chloronicotinyls featuring a unique mode of action. It was discovered by chemists at Nikon Bayer in Japan. Gustafson, Inc., in cooperation with Bayer, Corp., U.S., is marketing GAUCHO 480 for seed treatment use on cotton. Imidacloprid exhibits a high degree of toxicological and environ-mental safety.