Use of Caged Adult Forage Insects1 to Determine Their Comparative Roles In Delaying the Regrowth of Alfalfa2

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Delays in regrowth of alfalfa caused by forage insects were evaluated by: (1) caging different numbers of adult alfalfa plant bugs, Adelphocoris lineolatus (Goeze); tamished plant bugs, Lygus lineolaris (Palisot de Beauvois); and meadow spittlebugs, Philaenus spumarius (L.) on alfalfa plants grown in metal flats; (2) caging adults of the same species separately and in combinations and caging a leafhopper, Athysanus argentarius Metcalf, on alfalfa in flats; and (3) placing 5 adults of the species separately and in combination on individual potted alfalfa plants covered with clear plastic cylinders. Plants were analyzed for damage, and the results were compared with those compared in (2). Procedure 3 was the simplest to use, required fewer insects, and could be carried out in a controlled environment chamber.

Document Type: Research Article

Publication date: October 1, 1970

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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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