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Acetaldehyde Fumigation at Reduced Pressures to Control the Green Peach Aphid on Wrapped and Packed Head Lettuce

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Acetaldehyde (Aa), a naturally occurring volatile compound, killed 100% of Myzus persicae (Sulzer) on head lettuce during reduced pressure fumigation without injuring the lettuce. The lettuce was wrapped in a commercial polyethylene film containing slits and was packed in cartons before treatment with 1.5% Aa at an initial pressure of 30 mm Hg. Fumigation at lower (5 or 10 mm Hg) or higher (200 or 375 mm Hg) initial pressures did not kill 100% of the insects. Fumigation with 2.0% Aa at normal atmospheric pressure killed 100% of the insects on lettuce wrapped in a net-type film but not those on lettuce wrapped in the commercial or experimentally perforated film. However, lettuce that was wrapped in the net-type film wilted during 2 wk of storage because of high moisture loss through the excessive openings.

Document Type: Research Article

Publication date: February 1, 1980

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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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