Abstract
Abstract Three chlorpyrifos formulations were evaluated for the control of mole cricket nymphs at the Fox Squirrel Country Club in Brunswick Co. Plots 20 ft X 20 ft were established on a bermudagrass fairway in an area heavily infested with recently hatched mole cricket nymphs. Treatments were replicated four times and randomly assigned to the plots. All insecticides were applied on 17 Jul using a CO2-powered backpack sprayer delivering 30 gpa. Fairway irrigation was used to apply 0.25 inch of water to the test site prior to application and 0.5 inch of water immediately following application. Air temperature was 85°F and 4 inch soil temperature was 86°F. Soil at the test site was classified a Kureb fine sand with a pH of 6.2 and 0.41 % humic matter. Plots were evaluated 24 Jul (7 DAT), 8 Aug (22DAT), 22 Aug (36 DAT), 5 Sep (50 DAT), 19 Sep (64 DAT), using the damage grid rating method developed by Dr. Pat Cobb at Auburn University. A m2 grid divided into nine subsections was placed randomly in each plot and a damage rating of 0 to 9 was given, depending on the number of subsections in which fresh damage was observed. Five damage ratings were taken in each plot and the ratings were averaged. The actual damage means are reported in the table. All data were transformed X + 0.5 prior to ANOVA and Tukey’s Studentized Range Test.
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