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Alate aphids were captured in blacklight traps at 8 locations from Clemson, South Carolina, northward to Ithaca, New York. Four aphid species which vector barley yellow dwarf virus of small grains are reported: English grain aphid, Macrosiphum avenae (F.); oat bird- cherry aphid, Rhopalosiphum padi (L.); corn leaf aphid, R. maidis (Fitch); and greenbug, Schizaphis graminum (Rondani). These 4 species comprised 30% of all aphids captured. The number of each species taken during the season and periods of maximum flight varied greatly at the different locations. The 8 collections contained 20% English grain aphids, 6% oat bird-cherry aphids, 3% corn leaf aphids, and 1% greenbugs, with percentages at each location varying greatly. Earliest aphid capture ranged from April 13 at Clemson to May 13 at Mt. Carmel, Connecticut. Last capture ranged from May 30 at Clemson to December 2 at Mt. Carmel. The days from first to last capture varied from 4 days for the corn leaf aphid at Clemson to 203 days for the English grain aphid at Mt. Carmel.
Document Type: Research Article
Publication date: October 1, 1968
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.