Wheat Curl Mite Control on Winter Wheat, 1996

Abstract

Wheat was seeded 14 Jun, at Northern Agriculture Research Center, Havre, MT. Plots measured 16 ft long and 2 rows wide (1-ft row spacing) and were arranged in a RCB design with 4 replications. Insecticide applications were made using a backpack, CO2-powered sprayer equipped with TeeJet XR8002VS nozzles, calibrated to deliver 8.2 gpa at 30 psi. Six of the most recently, fully expanded leaves per plot were selected for sampling. Number WCM per leaf and percent infested plants were determined by visual inspection with the aid of a dissecting microscope. Data were analyzed using GLM and means were separated using LSMEANS.