Abstract
Abstract Forrest variety soybeans were planted into a conventional tillage field on the grounds of the University of Delaware experiment station near Georgetown, DE on 27 Jun. Plots consisted of a single row, 25 ft long on 30 inch centers bordered on both sides by guard rows. Six insecticide treatments replicated 5 times each were arranged in a randomized complete block design. Pre- and post-treatment mite populations were assessed by randomly picking 5 leaves from each plot and processing these through a Leedom engineering� mite brushing machine. Mite counts were then made using a binocular dissecting microscope set at 6x. All treatments were applied 23 Jul with a CO2 propelled backpack sprayer using two R and D Sprayer Inc. HC 12 hollow cone nozzles delivering a total of 37 gal per acre at 40 psi.
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