Abstract
Abstract Nine insecticides were applied to 5- × 10-ft plots on a golf course in Lincoln, Nebr. (Lancaster County), on 5 Aug. Granular formulations were combined with 13.5 oz Milorganite, which served as a carrier, and were hand shaken over plots. Liquid formulations were applied with a C02 sprayer using an LF-4 nozzle at 28 psi and a spray rate of 4 gal/1000 sq ft spray rate. To ensure uniformity among plots, 13.5 oz of Milorganite were also applied over plots receiving liquid formulations and over untreated checks. The experiment was replicated 4 times using a randomized complete block design. Immediately following insecticide applications, the test area was irrigated with approximately 0.75 inches of water. An additional 3.75 inches of rainfall occurred during the posttreatment period. Product efficacy was evaluated 14 days after application (19 Aug) by removing 2 sections of sod, 1-sq-ft × 4 inches deep, from each plot and counting the number of surviving grubs.
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