Persistence of Control of Japanese Beetle (Coleoptera: Scarabaeidae) Larvae with Steinernematid and Heterorhabditid Nematodes


Source: Journal of Economic Entomology, Volume 85, Number 3, June 1992 , pp. 727-730(4)

Publisher: Entomological Society of America

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Field tests were conducted in 1986 and 1987 to evaluate control of Japanese beetle larvae, Popillia japonica Newman, in turfgrass plots by heterorhabditid and steinemematid nematodes. Heterorhabditis bacteriophora Poinar (NC strain) reduced populations a maximum of60%, 34 d after a fall 1986 treatment. Control increased to 96% before pupation the following spring, and was 93-99% of the next larval generation. Application of Steinemema (=Neoaplectana) carpocapsae Weiser (All strain) provided a maximum of 51% control after 34 d, 90% the next spring (290 d after treatment), and 0% after 386 d. A spring 1987 application of H. bacteriophora resulted in 68% control 28 d after treatment, and up to 67% of the following generation of] apanese beetle larvae in the fall (138 dafter treatment). H. bacteriophora (HP88 strain) gave 100% control after 28 d in the spring of 1987, and 93-97% control of the next generation of larvae. No adverse effects on nontarget organisms (mites or collembola) were observed 28 d after treatments with any of the nematodes. Our data show that nematodes reproduce in Japanese beetle larvae, survive in the field in turfgrass, and have an influence on target hosts for a longer period oftime than previously demonstrated.

Document Type: Research Article

Publication date: June 1, 1992

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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.
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