Authors: Gardner, Wayne A.; Oetting, Ronald D.; Storey, Greggory K.

Source: Journal of Economic Entomology, Volume 77, Number 2, April 1984 , pp. 514-518(5)

Publisher: Entomological Society of America

Abstract:

A commercial formulation of Verticillium lecanii (Zimm.) Viegas (Vertalec, Tate and Lyle, Reading, Great Britain) was evaluated to determine its efficacy in controlling the green peach aphid, Myzus persicae (Sulzer), and the chrysanthemum aphid, Macrosiphoniella sanborni (Gillette), on chrysanthemums in greenhouses, its persistence on chrysanthemum foliage, and the effect of benomyl foliar sprays on its activity. A single aqueous spray of Vertalec consistently and effectively controlled M. persicae. However, control of M. sanborni was inconsistent and commercially unacceptable. The half-life of conidia on chrysanthemum foliage at humidity levels ranging daily from ca. 65 to 90% RH was 4.18 ± 0.152 days. Viable spores were detected for as long as 2 weeks after treatment. Benomyl applied as a foliar spray inhibited Vertalec activity when the fungicide was applied 3 days before and immediately before Vertalec applications. Spray intervals of ∼7 days between a Vertalec application and a previous benomyl application appeared to have no deleterious effects on the bioaphicide.

Document Type: Research article

Publication date: 1984-04-01

More about this publication?

• 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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