Abstract This experiment was conducted in a ⅓-acre block of 12-yr-old trees on M.26 rootstock. Trees measured 11.5 ft in height and 10.5 ft in width and were planted at a spacing of 10 X 15 ft. The experiment involved 4 single-tree replications in a RCB design, with each replicate surrounded by at least one unsprayed tree on each side. Treatments were applied as complete sprays to both sides of the trees with an FMC Economist airblast sprayer, which traveled at 2.2 mph and delivered a spray volume of 75 gpa. Other materials applied separately to all treatments were Asana, COCS, Dithane, Guthion, Lannate, Nova, Penncap-M, Penncozeb, Provado, Topsin-M, and Ziram. Control of European red mite was evaluated by sampling 25 leaves per tree, removing mites with a mite-brushing machine, and counting motile stages with a binocular microscope.