Hairy Chinch Bug Control on a Home Lawn in Wayne CO, PA, 1983

Three insecticides were applied 13 Jul. to a hairy chinch bug-infested home lawn. The lawn consisted of fine leafed fescue (100%). Treatment plots were 5 by 5 ft, arranged in a RCB design and replicated three times. At treatment time, the following environmental and soil conditions existed: air temperature, 90°F; soil temperature, 70°F; soil type, sandy-loam; soil pH, 5.4; percent organic matter, 2.1; soil condition, dry; amount of thatch, 0.06 in. and partly cloudy skies. A flotation method was used for sampling, using 6 in. diameter circular cans. Posttreatment counts were made 7 days later (20 Jul.). Three locations were randomly selected within each replicate, and the total number of chinch bugs rising to the surface over a 10-min period (per location) was recorded and converted to a ft2 count. An average of 116 chinch bug nymphs and adults per ft2 was recorded 13 Jul. before treatment.