Full TGIF Record # 42311
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Publication Type:
i
Report
Author(s):Baxendale, F. P.; Weinhold, A. P.; Heng-Moss, T. M.
Author Affiliation:Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE
Title:Control of bluegrass billbug adults on a Kentucky bluegrass lawn in Saunders CO., Nebraska, 1995
Section:Ornamentals
Other records with the "Ornamentals" Section
Source:Arthropod Management Tests. Vol. 21, 1996, p. 347-348.
Publishing Information:Annapolis, MD: Entomological Society of America
# of Pages:2
Abstract/Contents:"Insecticides were evaluated for control of bluegrass billbug adults on a Kentucky bluegrass lawn at the University of Nebraska Agricultural Research and Development Center near Mead, Nebraska. The turf (95% Kentucky bluegrass, 5% tall frescue) was maintained at a mowing height of 3 inches. Thatch accumulation (finger compressed) in the plot area was 0.50 to 0.75 inches. Field conditions at the study site were: soil type, silty clay loam; soil organic matter, 3-5%; soil pH, 6.7; water pH, 7.0. Environmental conditions at the time of application were as follows: soil moisture 17%; air temperature 69°F; soil temperature 57°F; relative humidity 59%; wind direction and velocity 45° at 9 mph. Plots were 6 x 17 ft and the experimental design was a RCB with 4 replications. Treatments were applied on 24 May 1995. Granular insecticides were applied with a pre-calibrated 24H12 Gandy spreader. Liquid insecticides were applied using a CO₂ sprayer with an LF-4 nozzle at 30 psi and delivering 2 gal finished spray/1000 ft₂. Following applications, plots were irrigated with 0.5 inches of water. A total of 3.13 inches of rain fell during the post treatment period. Surviving larva were collected (31 May, 7 DAT and 7 Jun, 14 DAT) by removing three 8-inch diam turf-soil cores (1.05 ft² total area) to a depth of 3 inches, trimming the soil to 0.5 inches of the thatch, and placing the soil core into Berlese funnels for 48 H. Turf-soil cores on the final evaluation (12 Jul, 48 DAT) were processed by removing the cores as described in the first two evaluations and examining the soil and thatch for larva. Approximatel 25% of billbug oviposition had been completed at the time of application. There were no statistically significant differences among treatments at 7 DAT or 14 DAT. By 48 DAT, however, all treatments had provided statistically significant reductions in billbug larval numbers when compared to the untreated control. Dursban and Deltamethrin 0.1 G at the 0.13 rate were the only materials to provide greater than 80% control. Deltamethrin 0.1 G plots were noticeably greener throughout the duration of the trial. No phytotoxicity was observed."
Language:English
References:0
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Baxendale, F. P., A. P. Weinhold, and T. M. Heng-Moss. 1996. Control of bluegrass billbug adults on a Kentucky bluegrass lawn in Saunders CO., Nebraska, 1995. Arthropod Manage. Tests. 21:p. 347-348.
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