Methomyl in seven concentrations ranging from 0.051 to 0.204 kg (AI)/378.5 liters of water was evaluated against eggs of insect and mite pests and beneficial insects associated with apples. Platynota flavedana Clemens (Lepidoptera: Tortricidae), Aphis spp. and Dysaphis plantaginea (Passerini) (Homoptera: Aphididae), and Argyrotaenia velutinana (Walker) (Lepidoptera: Tortricidae) eggs were highly susceptible to the material. Eggs of Cydia pomonella (L.) (Lepidoptera: Tortricidae) were less susceptible. Panonychus ulmi (Koch) (Acari: Tetranychidae) eggs were not susceptible. Eggs of beneficial syrphid flies, Aphidoletes aphidimyza (Rondani) (Diplera: Cecidomyiidae), Leptothrips mali (Fitch) (Thysanoptera: Phlaeothripidae), and Stethorus punctum (LeConte) (Coleoptera: Coccinellidae) were highly susceptible to methomyl. Eggs of Orius insidiosus (Say) (Heteroptera: Anthocoridae) were less susceptible. Chrysopa spp. (Neuroptera: Chrysopidae) eggs appeared to be unaffected by the chemical.
Document Type: Research Article
Publication date: April 1, 1985
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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.