Aerial Application of Bacillus Thuringiensis for Control of the Bagworm in Pine Plantations
Abstract:An aerial application of Dipel TM, a bacterial microbial insecticide formulation of spores and crystals of Bacillus thuringiensis Berliner, provided 95 percent control of the bagworm (Thyridopteryx ephemeraeformis (Haworth) in a Scotch pine (Pinus sylvestris L.) plantation. Viable spore counts on foliage averaged 1,105/g for pretreatment compared to 283,300 spores/g immediately after treatment. Spore counts 28 days after treatment averaged 611 spores/g. Per acre costs were $4 for Dipel, $2.75 for crude blackstrap molasses and $15 for the aircraft.
Document Type: Journal Article
Affiliations: Research Leader of the USDA, ARS, Biological Control of Insects Research Unit, Columbia, Missouri
Publication date: January 1, 1975
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