Activity Standardization of Technical Preparations of Douglas-fir Tussock Moth Baculovirus
Authors: Martignoni, Mauro E.; Iwai, Paul J.
Source: Journal of Economic Entomology, Volume 71, Number 3, June 1978 , pp. 473-476(4)
Publisher: Entomological Society of America
Abstract:Polyhedron counts are the most commonly used “measure” of the potency of technical nucleopolyhedrosis virus preparations. The actual potency of such preparations, however, can be determined only by bioassay. If the bioassay is standardized, it provides a frame of reference for comparisons among microbial products and among results of field applications. We describe an activity standardization procedure based on the stability of the response of an inbred strain of Orgyia pseudotsugata (McDunnough). The response of strain CL-I is the reference standard currently accepted by the U.S. Environmental Protection Agency and by the U.S. Forest Service for activity titrations of industrial preparations of Douglas-fir tussock moth Baculovirus. Tests covering a 2yr span and 3 generations of GL-I larvae show that the procedure is highly reproducible.
Document Type: Research Article
Publication date: 1978-06-01
- 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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