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Hot-Water Immersion as a Potential Quarantine Treatment Against Pseudaulacaspis cockerelli (Homoptera: Diaspididae)

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Lethal immersion in water at 47, 48, and 49°C from 0 to 10 min at 1-min intervals was determined for the crawler, nymph, and female adult stages of Pseudaulacaspis cockerelli (Cooley) on bird of paradise, Strelitzia reginae Aiton, leaves. Crawlers appeared more tolerant to hot-water immersion than female adults. Increased exposure time resulted in a linear increase in mortality for all temperatures. Exposure to 49°C water for 5, 5, and 6 min resulted in 100% mortality of adults, nymphs, and crawlers, respectively. Our proposed quarantine hot-water treatment can be adjusted to any specific risk level, including zero tolerance.

Document Type: Research Article

Publication date: August 1, 1993

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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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