Field Cage Studies to Detennine Effects of Mexican Bean Beetle Resistance in Soybeans

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Abstract:

The effectiveness of resistance in the soybean cultivar ‘Shore’ in reducing feeding damage and yield looses caused by Epilachna varivestis Mulsant was demonstrated in field cage studies conducted in 1973 and 1974. Caged soybeans were infested artificially at the rates of 1, 2, and 3 adults/row ft. Significant increases in foliar damage and reductions in seed yield were recorded for all 3 infestation rates in the susceptible cultivar ‘York’, as compared to the check plots. Shore suffered little defoliation and no loss in yield except at an infestation rate of 3 adults/row ft, which caused a 17% reduction in yield. Resistance in Shore at the lower infestation rates appeared to come from its ability to prevent or retard larval development which prevented the buildup of high adult numbers.

Document Type: Research Article

Publication date: February 1, 1977

More about this publication?
  • 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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