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Seedling Stage Feeding by Corn Leaf Aphid (Homoptera: Aphididae): Influence on Plant Development in Maize

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Five maize (Zea mays L.) inbred lines (837,873, CI03, Mol7, and 896 (41: 25048]) were infested with alate corn leaf aphids, Rhopalosiphum maidis (Fitch), in the greenhouse, and then transplanted to the field to quantify the effects of seedling feeding. Feeding by corn leaf aphids on coleoptile and two-leaf stage plants delayed plant development; plant height was reduced, and pollen shed and silking were delayed. Grain fill was also lower for plants infested in the coleoptile, two-leaf, and four-leaf stages compared with uninfested plants. Aphid feeding reduced grain-fill ratings in inbreds 837, CI03, and 896, but did not reduce grain fill in 873 and MoI7. Alate corn leaf aphid feeding on seedling maize can affect plant development and grain fill later in the season.

Document Type: Research Article

Publication date: April 1, 1991

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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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