Effect of Temperature on Infection of the Garden Symphylan by Entomophthora coronata

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An isolate of Entomophthora coronata (Constantin) Kervorkian from garden symphylans, Scutigerella immaculata (Newport), collected in western Oregon grew at 30 but not at 35°C. The fungus remained viable for at least 30 days on a non-nutritive substrate. When the fungus was kept on this substrate at various temperatures before the symphylans were introduced, symphylan mortality decreased with increasing time and storage temperature. At temperatures of 10, 15, 20, and 25°C, symphylan mortality in freshly prepared test bottles increased with increasing temperature. At 20 and 25°C, 100% of the symphylans were dead within 2 days.

Document Type: Research Article

Publication date: December 16, 1968

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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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