Formulation and Application of Microbial Insecticides for Forest Insect Pest Management: Problems and Considerations

FB Lewis

doi:10.1520/STP32481S

SYMPOSIA PAPER Published: 01 January 1983

STP32481S

Formulation and Application of Microbial Insecticides for Forest Insect Pest Management: Problems and Considerations

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Aerial applications for microbial insecticides such as Bacillus thuringiensis (Bt) and the Baculoviruses differ widely in effectiveness. The size and density of the droplets, the size and feeding rates of the larvae, the behavior of the insect, and the degradation of the insecticide after its application are among the controlling factors. Distributions of droplets of different sizes have been plotted and compared with the feeding rates of gypsy moth and spruce budworm larvae. In field tests, effectiveness was not always correlated with droplet density.

Author Information

Lewis, FB

Center for Biological Control of Northeastern Forest Insects and Diseases, U.S. Department of Agriculture—Forest Service, Hamden, Conn.

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Details

Developed by Committee: E35

Pages: 22–31

DOI: 10.1520/STP32481S

ISBN-EB: 978-0-8031-4891-8

ISBN-13: 978-0-8031-0221-7

Formulation and Application of Microbial Insecticides for Forest Insect Pest Management: Problems and Considerations

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