Serial extracts of dried soybean, Glycine max (L.) Merrill, leaves from the insect-resistant line PI 229358 were made with solvents of increasing polarity. Extracts, singly or in combination, were incorporated in an artificial diet medium fed to bollworm, Heliothis zea (Boddie), larvae. The effects on bollworm growth and mortality of feeding intact soybean leaves were essentially reproduced by feeding these extracts. All extracts caused increased larval mortality. Larval deaths were associated with failure to complete larval-to-pupal metamorphosis. An extract containing water-soluble compounds slowed development. Implications for host plant resistance are described.
Document Type: Research Article
Publication date: December 1, 1984
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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.