A field study was done to evaluate persistence of the entomopathogenic nematodes Steinernema carpocapsae (Weiser) and S. glaseri (Steiner) in controlling black cutworm, Agrotis ipsilon (Hufnagel), larvae in creeping bentgrass, Agrostis palustris Hudson. Bentgrass plots were baited with black cutworms on several dates following nematode application. Mortality of black cutworms in plots treated with nematodes was significantly greater than in untreated plots at 1 d after treatment. S. carpocapsae provided a slightly higher level of black cutworm control than S. glaseri. Persistence of nematodes was lost 8 d after nematode application in the field. Laboratory bioassays with black cutworm and greater wax moth, Galleria mellonella (L.), larvae using soil cores extracted from field plots confirmed field results. The nematode's ability to recycle in an insect cadaver and reinfest a newly introduced insect host was not observed in this study.
Document Type: Research Article
Publication date: June 1, 1994
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Journal of Economic Entomology is published bimonthly in February, April, June, August, October, and December. The journal publishes articles on the economic significance of insects and is divided into the following sections: apiculture & social insects; arthropods in relation to plant disease; forum; insecticide resistance and resistance management; ecotoxicology; biological and microbial control; ecology and behavior; sampling and biostatistics; household and structural insects; medical entomology; molecular entomology; veterinary entomology; forest entomology; horticultural entomology; field and forage crops, and small grains; stored-product; commodity treatment and quarantine entomology; and plant resistance. In addition to research papers, Journal of Economic Entomology publishes Letters to the Editor, interpretive articles in a Forum section, Short Communications, Rapid Communications, and Book Reviews.