Pesticide usage patterns were studied in 18 and 19 commercial apple orchards in Ohio during 1979 and 1980, respectively. Conventional every-row spraying was used in almost every orchard during the 2-year period. Phosmet and azinphosmethy1 were the predominant insecticides utilized, whereas captan, Dikar, and benomyl were the most frequent used fungicides. Superior oil applied in early spring and cyhexatin were the most common materials for control of mites. Insecticides and fungicides were applied at nearly half the Ohio recommended full dilute rates. Average expenditures for insecticides in 1979 were $107/haand $115/ha in 1980. Looses from principal insect pests, redbanded leafroller, Argyrotaenia velutinana (Walker), and plum curculio, Conotrachelus nenuphar (Herbst), were less than 2% annually.
Document Type: Research Article
Publication date: June 1, 1983
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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.