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Populations of Mexican Bean Beetles in Relation to leaf Protein of Nodulating and Non-Nodulating Soybeans1

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Abstract:

The influence of leaf protein on infestation of foliage-feeding insects was studied in an experiment at Tifton, Georgia. Leaf protein levels were obtained by side-dressing nodulating (nod) and non-nodulating (non-nod) soybeans with various rates of nitrogen.

Significant increases in the numbers of Mexican bean beetle, Epilachna varivestis Mulsant, occurred where nitrogen at certain rates was applied to nod and non-nod beans. Chemical analysis revealed significant increases in leaf protein only on non-nod beans which received increased nitrogen.

Correlation of percentage leaf protein and Mexican bean beetle numbers was significantly linear on non-nod soybeans, but not on nod soybeans.

Document Type: Research Article

Publication date: June 1, 1972

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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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