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| Publication Type:
| Report |
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| Author(s): | Brandenburg, R. L.;
Hertl, P. T. |
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| Author Affiliation: | Dept. of Entomology, North Carolina State University, Raleigh. |
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| Title: | Control of Japanese Beetle Grubs on A Golf Course Fairway, 1987. |
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| Source: | Insecticide and Acaricide Tests. Vol. 13, 1988, p. 331. |
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| Publishing Information: | Lanham, MD:Entomological Society of America |
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| Keywords: | TIC Keywords: Poa annua; Poa pratensis; Popillia japonica; Insecticides; Control; Ethoprophos; Isazophos; Diazinon; Benfuracarb; Carbaryl; Isofenphos; Phytotoxicity; Flat-fan nozzles
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| Abstract/Contents: | "Six insecticides were evaluated on a golf course fairway at the Grove Park Inn near Asheville, N. C. The fairway consisted of Kentucky bluegrass and annual bluegrass maintained at a height of 2 inches with 0.5 inch of thatch. Soil type was mineral (0.7% organic matter) at pH 6.6. Treatments were applied 28 Apr (except the second application in the 2- + 2-lb Diazinons split treatment, which was applied 5 May) to 10- X 10-ft plots arranged in a randomized complete block design with 4 replications. Air temperature was 67F and soil temperature was 58F. Soil was moist at time of insecticide application. Granular formulations were applied using a hand-held glass shaker jar with a perforated top. Sprays were applied with a CO2-pressurized backpack sprayer delivering 30 gal/acre at 40 psi using 8002 flat-fan nozzles. After application, all plots were irrigated with 0.5 inch of water. Plots were sampled on 21 May (23 DAT) by inspecting 1 sq ft of sod and all the underlying soil to a depth of 4 inches (most grubs were within 2 inches of the soil surface during both treatment and sampling). Two samples/plot were selected at random. All grubs (100% Japanese beetle grubs, 3rd instar) were counted and removed. Counts from the 2 samples were averaged and the data were transformed the square root of (x + 0.5) prior to analysis. Separation of treatments was difficult due to large variations in grub abundance among some plots. Results reveal distinct trends in effectiveness and indicate that several compounds were more effective than others. Triumph-treated plots contained significantly fewer grubs than the Oftanol treatment, the lower rate of Oncol, or the check plots. The Diazinon split application contained fewer grubs than the Oftanol-treated plots and the untreated check. No other treatments were significantly different from the untreated. Trends indicate a rate response for Oncol and enhanced performance for the split application of Diazinon versus the single application. White grubs showed no response to the Oftanol treatment. The course had a history of isofenphos (Oftanol) treatments for approximately 4 yr. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brandenburg, R. L., and P. T. Hertl. 1988. Control of Japanese Beetle Grubs on A Golf Course Fairway, 1987.. Arthropod Manage. Tests. 13:p. 331. |
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