Control of Aphids and Certain Other Pecan Pests with Soil Treatments of Disulfoton2

Abstract

In field tests in 1971 at Byron, Ga., disulfoton EC formulation injected into the soil and a granular formulation applied to soil surface significantly reduced populations of aphids, Monellia spp., that are pests of pecan. Also, the granular formulation of disulfoton applied to the soil surface gave some control of other insect pests of pecan, a serpentine leafminer, Nepticula juglandifoliella Clemens, and the pecan spittlebug, Clasoptera achatina Germar. In 1972, populations of Monellia spp. and the black pecan aphid, Tinocallis caryaefoliae (Davis), were reduced when an EC formulation of disulfoton was applied as a drench to the soil surface; however, a technical EC formulation injected into the soil was less effective.