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| Publication Type:
| Report |
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| Author(s): | Ali, A. D.;
Garcia, J. M.;
Georgis, R. |
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| Author Affiliation: | Cooperative Extension, Dept. of Entomology, University of California, Riverside (First two); Biosis, Palo Alto, Calif. |
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| Title: | Cutworm Control with Entomogenous Nematodes in Hybrid Bermudagrass, 1987. |
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| Source: | Insecticide and Acaricide Tests. Vol. 13, 1988, p. 328. |
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| Publishing Information: | Lanham, MD:Entomological Society of America |
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| Keywords: | TIC Keywords: Cynodon dactylon; Agrotis ipsilon; Nematoda; Steinernema carpocapsae; Heterorhabditis; Control; Flooding
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| Abstract/Contents: | "The study was conducted on a sod farm in Thermal, Calif. Experimental design was a randomized complete block with 4 replications. Individual plot size was 50 sq ft. Two species of entomogenous nematodes were studied. The first was Neoaplectana carpocapsae (=Steinernema feltiae) the All #25 strain, and the second was Heterorhabditis sp. the Hp88 strain. Nematode solutions were appled with a Solo knapsack sprayer using a hollow-cone nozzle at 32 psi and a spray rate of 4 gal/1000 sq ft. Cutworm larval density was estimated by flooding 2 randomly selected areas of 1 sq yd/plot. After 2-3 min the cutworms emerged to the surface and were counted. Pretreatment larval counts were taken on 28 Aug. after which treatments were applied. There was an average of 0.75 larvae/sq yd pretreatment. Posttreatment counts were taken on 1 Sep. Soil texture was sandy loam. Water was pH 7.2. Thatch was negligible (1/16 inch). Average temperature during the study was 95F. The plots were irrigated daily with 0.1 inch of water during the study. Control with N. carpocapsae was variable with the 48 and 384 million nematodes/acre rated providing 100% cutworm mortality. No difference was observed between the low and high rates of Heterorhabditis sp. The intermediate rate of 48 X 10 to the 6th power nematodes/acre provided the lowest control." |
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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):
Ali, A. D., J. M. Garcia, and R. Georgis. 1988. Cutworm Control with Entomogenous Nematodes in Hybrid Bermudagrass, 1987.. Arthropod Manage. Tests. 13:p. 328. |
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