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Cowpea Curculio:1 Correlations Between Chemical Composition of the Southern Pea and Varietal Resistance2

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Twenty-six varieties of southern pea, Vigna sinensis (Torner) Savi, were evaluated in the field for resistance to Chalcodermus aeneus Boheman, then pods were analyzed in the laboratory for concentration of reducing and nonreducing sugars, starches, and total nitrogen (N). There were significant positive correlations between percent concentration of total carbohydrates in the hull and feeding punctures in the hull and pea. Significant positive correlations occurred between hull and seed N and feeding punctures. The significance of these correlations to an arrestant and feeding stimulant is discussed.

Document Type: Research Article

Publication date: October 1, 1973

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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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