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| Publication Type:
| Report |
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| Author(s): | Weaver, Joseph E. |
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| Author Affiliation: | Division of Plant & Soil Scienes, West Virginia University, P.O. Box 6108, Morgantown, WV 26506 |
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| Title: | Evaluation of Steinernema glaseri for control of white grubs on a golf course in West Virginia, 1993 |
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| Source: | Arthropod Management Tests. Vol. 19, 1994, p. 327. |
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| Publishing Information: | Annapolis, MD: Entomological Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Poa pratensis; Lolium perenne; Popillia japonica; Cyclocephala borealis; Insect control; Insecticide evaluation; Entomopathogenic nematodes; Biological insecticides; Steinernema glaseri; Isofenphos
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| Abstract/Contents: | "Two tests were conducted. One test consisted of small plots 8 x 8 ft with a 3 ft buffer zone between plots, replicated 4 times in a RCB design. The other test was a larger plot (1/4 acre) unreplicated trial by the superintendent with a Cushman sprayer (total volume of spray applied was 45 gal). Both test were applied to the same fairway with the small and large plot areas separated by a 30 ft buffer zone. Treatments were applied 15 Sep. Environmental conditions were: air temperature, 20.5 degrees C; RH, 81%; clear and calm; soil temperature, 24 degrees C (1 inch), 22 degrees C (2 inch), 21 degrees C (surface); pH, 5.15; organic matter, 7.84%; soil dry to slightly moist; soil type, silt loam; thatch layer, 1/4 to 3/8 inches (compressed). Total precipitation during the trial period was 6.10 inches. Treatments on small plots were applied between 0825 and 0850 h; the large plot was sprayed at 0935 h. In the small plot trial, plots were pre-irrigated with 3 liters of water, nematodes were then applied with a sprinkler can in 2 liters of water then irrigated with 3 liters immediately after application. The large plot area was not pre-irrigated. Both the small and large plot areas were irrigated post-treatment beginning at about 1000 h with about 3/8 inch of water by the course irrigation system. Pre-treatment population counts (15 Sep) averaged 23.1 larvae/ft2 (89.5 % Japanese beetle and 10.5% northern masked chafer). Plots were sampled with a cup changer (4.25 inches diam.) to a depth of 2-3 inches (4 samples per plot on small plots; 10 samples in treated area and 5 samples in untreated buffer zone for the large plot area). In the small plot trial, biosys #326 (S. glasei [Steinernema glaseri]) at the 2.0 x 10(9) rate and Oftanol provided control that was significantly different from the untreated. Boisys #326 at the .05 x 10(9) rate in both the small and large plot areas did not provide adequate control and were similar in degree of control at 27.7 and 36.7%, respectively." |
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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):
Weaver, J. E. 1994. Evaluation of Steinernema glaseri for control of white grubs on a golf course in West Virginia, 1993. Arthropod Manage. Tests. 19:p. 327. |
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MSU catalog number: SB 951 .A1 I48 |
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