Abstract
Abstract Treatments were replicated five times in a 4-year-old ‘Chilliwack’ raspberry field j in Vancouver, WA. Plots measuring 1 row wide and 30 ft long were arranged in a RCB design. Full coverage sprays were applied on 10 Jun with a tractor-mounted 6-tank plot sprayer with an over-the-row boom. It was equipped with 14 D3-45 TeeJet nozzles per row at 200 psi and delivered 130 gal/acre at 2 mph. Basal sprays were applied with the same sprayer while using only the 3 lower nozzles on each side of the row. The nozzles were spaced 10 j inches apart and the lower one was 12 inches above the soil line. Sampling began at 10 PM by placing a 3-ft-wide by 10-ft-long white cloth under each side | of the row near the center of the plot. The top training wire was grasped tightly by hand and given 10 vigorous shakes. The weevils that were knocked off j were counted with the aid of a flashlight and returned to the plots. Evaluations were made at 3, 6, and 14 DAT. Brigade and Alert were reapplied 27 Jun j and sampled 4 and 14 DAT. Alert and both Brigade treatments significantly reduced the number of BVW up to 14 DAT and 4 DAT of the second application.
Published Version
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