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Seasonal Alate Aphid Collections in Yellow Pan Traps in Northeastern Mississippi: Possible Relationship to Maize Dwarf Mosaic Disease

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Abstract:

Yellow pan traps filled with water were used to collect alate aphids around the periphery of a field planted to corn during the summer and grain during the winter. Selected aphid species were tested for their ability to transmit the Mississippi isolate of maize dwarf mosaic virus (MDMV).

A total of 4899 aphids was collected from October 1968 through September 1969; aphids collected represented 47 species in 22 genera. The 9 predominant species and their abundance as percentage of the total collection were: Aphis maidiradicisForbes 27.6%, Acyrthosiphon pisum(Harris) 18.3%, Myzus persicae(Sulzer) 12.7%, Aphis spiraecolaPatch 11.1%, Dactynotus ambrosiae(Thomas) 10.6%, Aphis gossypiiGlover 5.4%, Aphis fabae Scopoli 1.6%, Hyadaphis pseudobrassicae(Davis) 1.4%. and Rhopalosiphum maidis(Fitch) 1.3%. The total aphid collections during the 12-month sample period showed 2 distinct peaks of activity April–May and October–November.

Thirty-five aphid species in 15 genera were collected during the corn-growing season. The predominant species were: A. pisum51.5%, A. spiraecola15.0%, A. maidiradicus10.1 %, and M. persicae 9.3%.

Seven of 10 aphid species transmitted the Mississippi isolate of MDMV. Transmissions with groups of 5 aphids per test plant ranged from 1.9% of the plants infected for R. maidisto 26.4% for Schizaphis graminum(Rondani).

Document Type: Research Article

Publication date: October 15, 1971

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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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