Systemic Insecticides for Control of Cotton Insects1

Abstract
In field experiments granules of Union Carbide UC-21149 [2-methyl-2-(methylthio) propionaldehyde O-(meth-ylcarbamoyl) oxime], Niagara 10242 (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methylcarbamate), and phorate applied in the furrow at planting controlled thrips (Frankliniella sp.), and the cotton aphid, Aphis gossypii Glover, for 9 weeks after planting. UC-21149 controlled the cotton fltahopper, Psallus seriatus (Reuter) for 7-10 weeks after planting. Shell 50-9129 (dimethyl phosphate ester with 3-nydroxy-N-methyl-cis-crotonamidc) applied as a stem treatment and UC-21149 applied as a granule sidedrcss treatment gave good control of the cotton flcahopper for at least 2 weeks.