Surface Application of Deltamethrin for Control of Mole Cricket Nymphs, 1996

Abstract

Abstract Rates of three insecticide formulations were evaluated for the control of mole cricket nymphs at the Fox Squirrel County Club in Brunswick Co. Plots 20 ft X 20 ft were established on a bermudagrass fairway showing a moderate level of mole cricket activity. Pretreatment sampling indicated the population was approximately 78% S. borelli and 22% S. vicinus. Treatments were randomly assigned to the plots and each treatment was replicated four times. All insecticides were applied 17 Jul. Spray formulations were applied using a CO2-powered backpack sprayer delivering 30 gal/acre. Granular formulations were applied using a hand-held Republic EZ Handspreader®. The soil was moist from recent rains at the time of application and 4 inch soil temperature was 86°F. Soil at the test site was classified as a Kureb fine sand with a pH of 6.1 and 0.41 % humic matter. Fairway irrigation was used to apply 0.25 inch of water to the entire test after application. Plots were evaluated on 31 Jul, 14 DAT, 14 and 29 Aug (28 and 43 DAT, respectively), and 19 Sep (64 DAT) by making five random grid rat-ings (Mack and Cobb 1989) per replicate. The five grid ratings per replicate were averaged and actual means are presented in the table. All data were trans-formed X = 0.5 prior to ANOVA and Tukey’s Studentized Range Test.