Resistance of Alfalfa Cultivars to the Threecornered Alfalfa Hopper (Homoptera: Membracidae)
Authors: MOELLENBECK, D. J.; QUISENBERRY, S. S.; ALISON, M. W.
Source: Journal of Economic Entomology, Volume 86, Number 2, April 1993 , pp. 614-620(7)
Publisher: Entomological Society of America
Abstract:Alfalfa, Medicago sativa L., cultivars were evaluated under field conditions for resistance to the three cornered alfalfa hopper, Spissistilus festinus (Say). Resistance was characterized by monitoring adult populations and girdle damage. Tolerance and adaptability to Louisiana growing conditions were characterized by monitoring stand persistence. 'GA Plains', 'Zia', 'Condor', 'Florida 77', and 'Cuf 101' exhibited resistance to the three cornered alfalfa hopper by having reduced girdle damage in comparison with the other cultivars. 'Ladak' showed the highest level of susceptibility in terms of girdle damage and is recommended for use as a susceptible check. 'Cimarron VR', 'GA Plains', and 'WL 516' showed the lowest percentage of plants lost. Cultivar ranks varied by location and date, indicating multiple counts and locations must be used to categorize alfalfa resistance adequately.
Document Type: Research Article
Publication date: April 1993
- 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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