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A survey of Japanese beetle, Papillia japonica Newman, and Oriental beetle, Anomala orientalis Waterhouse, grubs from 53 sites in the spring and 62 sites in the fall of 1974, showed that incidence of infection with Bacillus popilliae Dutky, causal agent of milky disease, was remarkably low in Connecticut. Laboratory tests conducted with B. popilliae from field collected Connecticut and New York grubs determined that spores were especially low in infectivity both by ingestion and by intrahemocoelic injection when compared to infection data from earlier published reports. A. orientalis and P. japonica seemed comparable in their sensitivity to B. papilliae by injection. Spores from diseased grubs collected at different locations in the state varied in their rates of infectivity.
Document Type: Research Article
Publication date: August 1, 1975
More about this publication?
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.