EVALUATION OF GAUCHO GRANDE AND OTHER INSECTICIDES FOR MANAGEMENT OF EARLY SEASON INSECT PESTS IN COTTON ACROSS EASTERN TEXAS

摘要

Two seed treatments, Cruiser (thiamethoxam) and Gaucho Grande (imidacloprid) and the in-furrow insecticide Temik (aldicarb) were evaluated for control of thrips (Frankliniella spp.) and aphids (Aphis gossypii Glover) in early-season cotton across theeastern region of Texas in 2005. Interest in seed treatments is high among producers who continue to fine tune production practices that will maximize profitability. Conditions were warmer and drier than normal during and following planting of cotton inthe eastern region of the state in most of the trials. All the insecticides significantly reduced thrips numbers compared to the untreated check. Although yields in the treated plots were numerically higher, only those plots treated with Temik were significantly better than the untreated cotton.