Fenoxycarb and Diapause: A Possible Method of Control for Pear Psylla (Homoptera: Psyllidae)
Author: KRYSAN, JAMES L.
Source: Journal of Economic Entomology, Volume 83, Number 2, April 1990 , pp. 293-299(7)
Publisher: Entomological Society of America
Abstract:That analogs or mimics of insect juvenile hormones could be used to control insects by disrupting their diapause, thus uncoupling the target insects from the seasonal cycles of their environment, was once considered a promising possibility for insect management. The animals would die during an inimical period because survival mechanisms are lacking. However, laboratory studies revealed no promising model system and the concept languished. I found that the reproductive diapause of pear psylla, Cacopsylla pyricola (Foerster) (Homoptera: Psyllidae), was terminated by topical application of as little as 1 ng per insect of fenoxycarb, a carbamate that mimics juvenile hormone. Seasonally inappropriate ovarian development and mating began when fenoxycarb was applied to the foliage upon which adults fed and rested. The same effect was shown in field tests. Disruption of diapause with juvenoids may still be a viable strategy for insect pest management.
Document Type: Research Article
Publication date: 1990-04-01
- 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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