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Publication Type:
| Report |
Author(s): | Baxendale, F. P.;
Weinhold, A. P.;
Schild, J.;
Merrigan, T. |
Author Affiliation: | Department of Entomology, University of Nebraska-Lincoln, Lincoln, NE |
Title: | Spring application of conventional and biorational insecticides for control of sod webworms, 1996 |
Section: | Ornamentals Other records with the "Ornamentals" Section
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Source: | Arthropod Management Tests. Vol. 22, 1997, p. 354-355. |
Publishing Information: | Annapolis, MD: Entomological Society of America |
# of Pages: | 2 |
Keywords: | TIC Keywords: Application timing; Insecticides; Biological insecticides; Insect control; Crambinae; Pyralidae; Poa pratensis; Lawn turf; Cyfluthrin; Experimental products; Imidacloprid; Bacillus thuringiensis; Chlorpyrifos; Heterorhabditis bacteriophora; Application rates; Formulations
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Abstract/Contents: | "Insecticides were evaluated for control of sod webworm larvae on a Kentucky bluegrass lawn at the Gering Cemetery, in Scotts Bluff County, Nebraska. The turf (80% Kentucky bluegrass, 20% perennial rye and tall fescue) was maintained at a mowing height of 2.5 inches. Thatch accumulation (finger compressed) in the plot area was 0.5 inch. Field conditions at the study site were: soil type, silt loam; soil organic matter, 2.3%; soil pH, 8.4. Weather conditions at the time of treatment were as follows: soil moisture 16% by wt; air temperature 70°F; soil temperature 62°F; relative humidity 29%; wind direction and velocity 157°F at 11 mph. Plots were 7 X 7 ft and the experimental design was a RCB with 3 replications. Treatments were applied on 6 May. Liquid insecticides were applied using a CO² sprayer with a TeeJet® 8002 nozzle at 30 psi and delivering 2 gal finished spray/1000ft₂. Following applications, plots were irrigated with 0.125 inches of water. A total of 0.67 inch of rain fell during the post-treatment period. Treatments were evaluated 3,7, and 14 DAT (10, 14, and 21 May) by mixing 0.5 oz of Lemon Dawn® per gal of water and applying one gal of the dilution to each of two 6 ft sampling areas per plot (12.0 ft₂ total area). Larvae that moved to the grass surface after twenty minutes, were collected and counted. At 3 DAT, no treatment provided statistically significant sod webworm reduction relative to the untreated check. By 7 DAT, all treatments provided statistically significant reductions in SWW numbers. RH-0345101 (all rates), Dursban Turf, and Cruiser continued to provide significant SWW reductions on 14 DAT. 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, J. Schild, and T. Merrigan. 1997. Spring application of conventional and biorational insecticides for control of sod webworms, 1996. Arthropod Manage. Tests. 22:p. 354-355. |
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