Effects of a Wide-area Application of ULV Malathion on Leafhoppers in Alfalfa

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Beginning in 1968, a 16 (4×4) mi2 area of Dawson County, Nebr., was sprayed in August for 3 consecutive years with ULV malathion. Leafhoppers in alfalfa were monitored as nontarget organisms. Scaphytopius acutus (Say) was suppressed from one growing season into the next. All other major species, Aceratogallia uhleri (Van Duzee), Balclutha neglecta (DeLong and Davidson). Empoasca fabae (Harris), and Macrosteles fascifrons (Stål) recovered within 2–4 wk following treatment.

Document Type: Research Article

Publication date: April 1, 1975

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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.
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