Abstract
Abstract The experiment was conducted in a pasture in Todd, North Carolina (Watauga Co.). There was no measurable thatch, soil contained 20% organic matter. Air temperature at treatment time (27 Sep) was 63°; soil temperature at 4 inches was 55°F. The larvae were third instars. The experimental design was a randomized complete block with 4 replicates. Individual plots were 18 X 20 ft. The granular material was applied with a cyclone rotary broadcast spreader. Liquid applications were made using a John Bean centrifugal pump sprayer with three 11005 Teejet nozzles mounted on a boom operating at full throttle with a 1(H) ml per sec rate, at 1(H) gal water per acre. Three days after treatment 0.28 inches rain occurred. Surviving larvae were sampled 239 days after treatment by cutting five 7 X 7 X 3-inch deep plugs into each 20 X 18 ft plot.
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