Insecticidal Control of the Greenhouse Whitefly on Greenhouse Ornamental and Vegetable Plants
Authors: Webb, Ralph E.; Smith, Floyd F.; Boswell, A. L.; Fields, E. S.; Waters, R. M.
Source: Journal of Economic Entomology, Volume 67, Number 1, February 1974 , pp. 114-118(5)
Publisher: Entomological Society of America
Abstract:In a comparison of test materials for control of Trialeurodes vaporariorum (Westwood), resmethrin was the most effective spray and controlled all stages but the eggs, Resmethrin mists and aerosols gave good control of whitefly adults and young nymphs in the winter, but were less effective in the warmer months. Azinphosmethyl, Dasanit® (O,O-diethyl O-[p-(methylsulfinyl) phenyl] phosphorothioate), and parathion also gave good control of nymphs in spray tests. Phytotoxicity of the resmethrin formulations appeared minimal except with poinsettia.
When resmethrin mist was applied once a week (1 or 0.5 g AI/1000 ft3) it gave excellent control of whitefly during the cool winter, but effectiveness decreased as temperatures increased. By mid-June, applications of the higher dose gave only fair control. Generally, the mists controlled the adults, crawlers, and young nymphs, but were ineffective vs. eggs, older nymphs, and pupae. However, resmethrin 2 EC applied as a spray once a week for 4 weeks virtually eradicated infestations.
Document Type: Research Article
Publication date: 1974-02-01
- 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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