Interactions of Temperature and Squash Bug Density (Hemiptera: Coreidae) on Growth of Seedling Squash

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Abstract:

A laboratory study was conducted to quantify the relationship of adult squash bug, Anasa tTistis (DeGeer), density to summer squash (Cucurbita pepo L. var Hyrific) plant damage. This relationship was investigated at five temperatures (20.0, 22.5, 25.0, 27.5, and 30.O"C) and four adult squash bug densities (none, two, four, and six). Vegetative growth rates and ovulate flower productivity decreased with increasing squash bug density; staminate flower productivity was not significantly affected by squash bug density. Growth rates and ovulate and staminate flower productivity increased with increasing temperatures. Squash bug mortality was highest at 25.O"C and lowest at 22.5"C. Female squash bug mortality was significantly higher when there were only two squash bugs per plant. The number of mean eggs per female increased with temperature and was unaffected by squash bug density.

Document Type: Research Article

Publication date: June 1, 1991

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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