Abstract
Abstract The lawn consisted primarily of fine leafed fescue. Treatment plots were 5 x 6 ft, arranged in a RCB design and replicated 3 times. Liquid formulations were applied by using a COa sprayer with four 8004VS Tee Jet nozzles mounted on a 6-ft boom, operating at 28 psi with a 4 gal/1,000 ft2 spray rate. At treatment time, the following soil and environmental conditions existed: air temp, 76°F; soil temp,, 70°F; % RH, 68; amount of thatch, 0.5-1 inch; soil type, silt-loam; % soil moisture, 12; soil pH, 6.8; % organic matter, 5.0; water pH, slightly acidic; 1.4 inches of rainfall was recorded over the posttreatment period. Posttreatment counts were made 7 DAT after the initial 1 Aug treatment date. Hairy chinch bugs were sampled by driving a 6 inch stainless steel cylinder into the turf, filling with water, and counting the number of chinch bug nymphs and adults floating to the surface over a 10 min period. Three floatation samples were randomly taken from each replicate, and the total number of chinch bugs from each sample was recorded and converted to a ft2 count.
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