Authors: BIDDINGER, D. J.; HULL, L. A.

Source: Journal of Economic Entomology, Volume 88, Number 2, April 1995 , pp. 358-366(9)

Publisher: Entomological Society of America

Abstract:

Abamectin, methomyl, several types of insect growth regulators (lGRs), and several organophosphate insecticides were evaluated for toxicity to the egg, larval, pupal, and adult stages of the coccinellid mite predator, Stethorus punctum (LeConte). Field-collected eggs were dipped into aqueous solutions to evaluate ovicidal activity; field collected mid-instars and adults were tested by a 24-h dry fl]m exposure method. Multiple mortality readings were done over time. Pupal mortality was evaluated in field plots that received biweekly applications. Fenoxycarb was ovicidal in the laboratory and disrupted the larval-pupal molt in the field. Abamectin was toxic to S. puncturn larvae and adults in the laboratory and methomyl was toxic to adults. Teflubenzuron was toxic to the pupal stage in the field; along with fenoxycarb, this IGR caused late-season increases of phytophagous mite populations in field trials. Tebufenozide was not toxic to all S. punctum stages in the laboratory and field. S. punctum was tolerant to all organophosphate insecticides tested.

Document Type: Research article

Publication date: 1995-04-01

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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