Control of Western Flower Thrips on Harvested Strawberries with Acetaldehyde in Air, 50% Carbon Dioxide or 1% Oxygen

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Acetaldehyde (Aa), a volatile compound produced naturally in small quantities by fruits and other plant organs, was found to be toxic to Frankliniella occidentalis (Pergande) on strawberries. Fumigation of field-infested strawberries with 2.0% Aa for 4 h at 21°C caused 100% mortality in thrips and drying of the calyx. Fumigation with Aa in atmospheres that contained 50% CO2 or 1.0% O2 eliminated this injury to the calyx. Fumigation with Aa at concentrations as low as 1.5% in combination with 1.0% O2 caused 100% kill. Concentrations of 1.5 or 2.0% Aa also reduced decay of the strawberries by more than 50%. Thus, Aa has potential as a fumigant for post harvest control of the western flower thrips on strawberries shipped to Japan and other foreign countries with strict quarantines against this insect.

Document Type: Research Article

Publication date: December 1, 1979

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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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