Evaluation of Bacillus thuringiensis and a Parasitoid for Suppression of the Gypsy Moth
Authors: Wollam, John D.; Yendol, William G.
Source: Journal of Economic Entomology, Volume 69, Number 1, February 1976 , pp. 113-118(6)
Publisher: Entomological Society of America
Abstract:The microbial insecticide Bacillus thuringiensis Berliner and the parasitoid Apanteles melanoscelus Ratzeburg were evaluated against the gypsy moth, Porthetria dispar (L.) , infesting an oak forest in Pennsylvania. The biotic agents were compared individually and in combination. In general, where only the parasitoid was released, foliage protection and population reduction was not significantly different from the untreated areas. Aerial application of B. thuringiensis provided foliage protection and population reduction when compared with the control or where only parasitoids were released. When the parasitoid was released in areas treated with B. thuringiensis additional foliage protection was attained. Only where the parasitoid was used with B. thuringiensis were larval populations consistently reduced at the 3 population densities tested.
Document Type: Research Article
Publication date: 1976-02-01
- 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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