Flight Activity of the Corn Leaf Aphid in Wisconsin as Determined by Yellow Pan Trap Collections1
Authors: EVANS, D. A.; MEDLER, J. T.
Source: Journal of Economic Entomology, Volume 60, Number 4, August 1967 , pp. 1088-1091(4)
Publisher: Entomological Society of America
Abstract:Yellow-pan traps were used to determine the flight activity of the corn leaf aphid, Rhopalosiphum maidis (Fitch), in Wisconsin. The seasonal activity consisted of irregular fluctuations in sizes of collections from the first appearance of the species in the traps until late July to early August, when numbers increased greatly. Collections then decreased until late September to early October, when activity increased once again. By late October' or mid-November, R. maidis was no longer present in the traps. This activity pattern was distinct from the resultant total pattern of all other aphids in thc collections, which showed greatest activity in late May to early June. Observations in the field at Madison, Wis., indicated that percentages of alatae on corn were highest approximately 2 week before the first large alatae collections in yellow pan traps. The aphid colonies on corn tended to be largest approximately 10 days preceding large alatae collections in the traps.
Document Type: Research Article
Publication date: August 1967
- 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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