Control of Walnut Aphid in Walnuts, 2015

This study was designed to evaluate the efficacy of reduced-risk insecticides for control of WA. This study was conducted in mature “Chandler” walnut orchard spaced with 4.9 m between trees and 6.7 m between rows near Tracy, CA. Thirteen treatments were replicated four times in an RCB design. Each replicate was a single tree with an untreated buffer tree in all directions from …