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Development and Evaluation of a Wax Immersion Technique Designed for Studies of Spider Mite (Acari: Tetranychidae) Population on Strawberries

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Abstract:

A wax immersion technique was developed and evaluated for use in population ecology studies of Tetranychus urticae Koch on strawberries. This method prolonged the time period in which leaves were suitable for spider mite counts (2 weeks), thus increasing the number of leaf samples which could be collected and effectively counted at any given time. Since all T. urticae life stages were killed immediately following treatment in the laboratory or the field, problems associated with continued development or increased activity caused by handling were eliminated. Comparison of the wax immersion technique and an imprint method based on a protein-sensitive dye indicated that the wax immersion technique was more effective for calculating pretreatment counts of the developmental stages studied, and was therefore more suitable for estimating population density.

Document Type: Research Article

Publication date: February 1, 1984

More about this publication?
  • 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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