Alfalfa Insect Control, 1979

An eight year old stand of alfalfa located at the Newland’s Field Station, Fallon, Nevada was used for this study. Treatments were applied at near full bud stage when 30 - 40% of the plants were showing alfalfa weevil damage. Plots were 25 x 50 ft and arranged in a randomized complete block design with four replicates. Sprays were applied with a CO2 activates plot sprayer calibrated to deliver 17.2 gpa at 30 psi. Treat-ments were made on May 21 ‘79. Post treatment counts were taken on May 24, 28 and Jun 5 and were based on 10 (180 degree) sweeps of a standard net from each rep.