Abstract
Abstract Acaricides were applied to 5 single-tree replications of 6-year-old trees in a randomized block design. The first application was made at either the tight cluster (8 Apr), pink (13 Apr) or petal fall (26 Apr) stage, depending upon treatment. All treatments received a second application on 5 Jul. Sprays were applied with a Myers V7710-5E02G hydraulic sprayer equipped with a handgun and operated at 200 psi. Treatment effectiveness was determined by sampling 20 leaves from the periphery of each tree (100/treatment), removing mites with a mite-brushing machine and counting active stages with a binocular microscope.
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