Abstract
Abstract Six acaricide treatments were evaluated for control of a summer population of YSM in Mt. Vernon, WA on a 6-yr-old ‘Tulameen’ planting. Treatments were replicated 4 times on 9 X 30 ft plots arranged in a RCB design. Sprays were applied on 15 Aug with a tractor-mounted (PTO) plot sprayer equipped with 6, 5 gal capacity stainless steel tanks individually valved to an over-the-row boom. The boom was equipped with 13 D4-45 TeeJet nozzles operating at 200 psi to deliver 150 gpa at 2.5 mph. Female counts were periodically made by randomly collecting 20 terminal leaflets from both sides of the row and brushing them onto glass plates with a mite-brushing machine.
Published Version (
Free)
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call