Abstract
Abstract Cotton (‘DES 119’) was planted on 5 May in plots 8 rows (40 inch centers) by 65 ft on the Delta Branch Experiment Station, Stoneville, MS. Treatments were arranged in a RCBD with 4 replicates. Treatments were applied on 20 and 27 Jun by a high-clearance spray machine equipped with a compressed-air apray system. Total spray volume was 6 gpa at 5 mph and 35 psi using two TX10 nozzles/row. Visual samples were taken by examining 25 terminals per plot and recording numbers of adults and nymphs. Damage was also assessed similarly. Tarnished plant bug adults and nymphs were sampled with a drop cloth (1.0 by 0.97 m) from 1 m of a row at 4 random locations in each plot on each sample date. In each plot, 4 random sweep net samples were taken; 10 sweeps across a single row constituted a sample. Numbers of adults and nymphs captured in the samples were determined in the field. Pretreatment counts were made on 19 Jun and counts were taken 3 DAT for each application.
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