Factors Affecting Resistance of Selected Alfalfa Clones to the Potato Leafhopper
Authors: NEWTON, R. C.; BARNES, D. K.
Source: Journal of Economic Entomology, Volume 58, Number 3, April 1965 , pp. 435-439(5)
Publisher: Entomological Society of America
Abstract:Time of development, survival, and plant preference of potato leafhopper nymphs, Empoasca fabae (Harris), were investigated for 15 selected alfalfa clones in the greenhouse, laboratory, and environmental control chamber. Results indicated significant differences among clones for length of nymphal development and nymphal feeding preference. A significant correlation was observed between long nymphal development and reduced nymphal survival. Additional studies indicated differences within the same clones for adult oviposition preference, plant yellowing resulting from both nymphal and adult feeding, and nymphal populations occurring under natural field infestations. Significant correlations were shown between plant color changes and nymphal populations, plant color changes and oviposition preference, as well as between nymphal populations and oviposition preference. The authors describe a new technique involving exposure of potted plants for a short time in the field to determine antibiosis of alfalfa clones to the potato leafhopper.
Document Type: Research Article
Publication date: 1965-04-01
- 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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