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Thermal Requirements for Development, Population Trends, and Parasitism of Azalea Lace Bug (Heteroptera: Tingidae)

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Duration of development of azalea lace bug, Stephanitis pyrioides (Scott), measured at six temperatures ranged from ""22d at 30°C to 97 d at 15°C.Development was not successful at 33°C. Estimated threshold temperatures (To) and calculated thermal unit requirements (K) for development of egg, nymphal, and complete development were, respectively: 10.2, 12.2, 11.2°C and 213.1,179.2,394 degree-days (DD). Four generations of azalea lace bug occurred in central Georgia. Phenology of the first generation developing from overwintered eggs was closely predicted in the landscape using these parameters. A mymarid parasitoid, Anagrus sp., emerged from eggs collected at intervals during the season. Greatest parasitoid-induced mortality was observed in the overwintering generation.

Document Type: Research Article

Publication date: June 1, 1992

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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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