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A method of producing a Poisson distribution of egg masses over plants and time was developed for artificial infestation of field corn that simulates natural oviposition by Ostrinia nubilalis (Hübner). Data were collected for 2 yr on the length of cavities (cm) and subsequent yield losses by using different levels of infestation in a Poisson distribution. Yield losses and damage were greater during stage 5 (pollen-shedding) than during stage 2 (early whorl) of plant development. Statistically, significant correlations were obtained between shelled weight and ear weight (0.986), shelled weight and total cavities (-0.323 and -0.112), ear weight and total cavities (-0.321), shelled weight and entrance holes (-0.075), and entrance holes and total cavities (0.906).
Document Type: Research Article
Publication date: February 1, 1980
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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.