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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Baxendale, F. P.;
Weinhold, A. P.;
Gaussoin, R. E. |
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| Author Affiliation: | Department of Entomology and Department of Horticulture, University of Nebraska, NE |
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| Title: | Residual activity on NTN 33893 and Triumph 4E for control of annual white grubs on a golf course rough, 1992 |
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| Source: | Insecticide and Acaricide Tests. Vol. 18, 1993, p. 320-321. |
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| Publishing Information: | Lanham, MD: Entomological Society of America |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Poa pratensis; Lolium perenne; Ochrosidia dillosa; Residual effects; Insecticide application
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| Geographic Terms: | Nebraska |
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| Abstract/Contents: | "This study was conducted on a golf course rough in Lincoln, NE. The turf(50% Kentucky bluegrass and 50% perennial rye) was maintained at a mowing height of 3.8 cm and thatch accumulation (finger compressed) in the plot area was 0.64 to 1.3 cm. Field conditions were: soil type, silty clay loam, soil organic matter, 3-5%; soil pH, 6.0 to 7.0; water pH, 7.0; soil moisture, near field capacity. Plots were 1.5 X 1.5 m, and the experimental design was a RCB with 5 replications. Insecticide treatments were applied 28 May and 29 Jul. Triumph was applied with a CC2 sprayer using a LF-4 nozzle at 165.6 KPa and 18.9 liter/93 m2 and the NTN 33893.062G was applied with a precalibrated Grandy 30h12 spreader. Immediately following applications the test area was irrigated with approximately 1.3 cm of water. Product efficacy was evaluated 26 Aug (28 days following the last application) by removing from each plot six 20.3 diam turf-soil cores (0.19 m2 total area) to a depth of 7.6 cm and counting the number of surviving grubs. The southern masked chafer age class distribution at evaluation (26 Aug) was 83% second and 17% third instar grubs. All treatments except Triumph 4 E applied 28 May resulted in statistically significant reduction in white grub numbers. NTN 33893 provided good (greater than 80%) control regardless of application rate or treatment timing. A high degree of variability among plots (CV=176.7) resulted in poor separation of means. No phytotoxicity was observed." |
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| Language: | English |
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| References: | 0 |
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| Note: | Table
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Baxendale, F. P., A. P. Weinhold, and R. E. Gaussoin. 1993. Residual activity on NTN 33893 and Triumph 4E for control of annual white grubs on a golf course rough, 1992. Arthropod Manage. Tests. 18:p. 320-321. |
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