Control of Hessian Fly and Russian Wheat Aphid in Spring Wheat, 1996B

Plots were seeded 14 Apr (60 lb/acre) at the Dye Farm near Pomeroy, WA. Two rates of Gaucho 480 (0.5, and 1.0 oz(AI)/cwt) were applied as seed treatments, and an untreated check was set up. Plots were arranged in a RCB design with 4 replicates of 36 X 400 ft each. Numbers of heads and tillers per 10 plants, % HF-infested tillers, and % RWA-infested tillers were recorded at 85 days after plant emergence (DAE) (Feeks scale 10.5). Harvest data were collected on 21 Aug by cutting 24 ft strips per replicate and weighing the grain in a weigh wagon. Yield per acre was calculated for each treatment.