Quantitative Production and Processing of Tetranychid Mites for Large-Scale Testing or Predator Production

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Lima bean seeding held 7 days after planting at 27±2°C under fluorescent lights, were transferred to a greenhouse and infested with 0.24 g of Tetranychus pacificus McGregor eggs per 100 plants. Fourteen days later, the miles are washed from the leaves in a specially designed washer and collected on a series of graduated fine mesh screens.

Recovery of mites during an 8-week period averaged 1.29 g or about 353,860 mites per 100 seedlings. Weekly production from 5000 plants averaged 64.4 g of mites and required about 12 man-hours per week for the entire process (planting, infesting, washing, collecting, weighing). The system was designed to be expanded readily without altering the basic program.

Document Type: Research Article

Publication date: October 15, 1971

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  • 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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