Abstract
Two rates of Orthene 75S and four adjuvants were evaluated for tawny mole cricket control on a bermudagrass fairway at Ocean Harbour Golf Course in Brunswick Co. Plots 15 ft x 80 ft were established in areas where fresh mole cricket damage was evident. Treatments were randomly assigned with four replications. Soil had 0.38 humic matter and a pH of 6.1. Spray water had a pH of 7.5. The plots were preirrigated with 0.25 inch of water and treated on 23 Sep. Soil temperature was 78°F, air temperature 84°F. The chemicals were applied late in the day with a Broyhill® fairway sprayer delivering 114 gal/acre. The chemicals were not watered-in. Plots were evaluated by taking 5 random damage grid samples/replicate. The grid was placed randomly and fresh damage observed in each of the 9 subgrids (0 = no damage, 9 = severe damage) was recorded. Evaluations were conducted on 29 Sep (6 DAT) and 7 Oct (14 DAT). All data were transformed VX + 0.5 prior to analysis. Actual means are presented in the table.
Surface Application of Granular Insecticides for the Control of Mole Cricket Nymphs in North Carolina, 1996