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Resistance of sweet corn varieties to the fall armyworm (Laphygma frugiperda (.J. E. Smith)) was largely due to plant vigor or tolerance, both in relation to the insect and seasonal conditions. Some of the more tolerant varieties were the Asgrow Goldens, Golden Regent, Goldenyield, Golden Tighthusk. Golden Security, and Golden Sensation. Among the more susceptible varieities were Carmelcross, Ioana, Spancross, and Golden Cross Bantam. Some plant varieties were more antibiotic to the insect than others, but this was not correlated with resistance vigor. Fall armyworm larvae preferred succulent plant tissue which was in good physical condition and apparently made no distinction between different varieties in any other regard. Good cultural practices plus a careful selection of sweet corn varieties should lessen the effects of damage by the insect, but in the Coastal Plain of North Carolina it generally would be uneconomic to harvest sweet corn after the latter part or July.
Document Type: Research Article
Publication date: April 1, 1963
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.