Effects of Infestation Levels of Heliothis zea on Soybean
Authors: Mueller, A. J.; Engroff, B. W.
Source: Journal of Economic Entomology, Volume 73, Number 2, April 1980 , pp. 271-275(5)
Publisher: Entomological Society of America
Abstract:Field studies, 1974-78, were conducted to determine effects of populations of Heliothis Zea (Boddie) on soybean yields. Degree of feeding injury depended upon soybean growth stage at time of H. zea introduction, larval stage, and level of infestation. First and 2nd instars fed primarily on plant pubescence, with later stage larvae feeding on foliage. and young pods. All stages exhibited a preference for blooms, if available. Based on smgle infestations, no clearly defined yield reductions were obtained at the infestation levels tested. Plant compensation plays an important role in counter-acting feeding damage. Based on data from these studies, control recommendation for H. zeaon soybean in Arkansas was elevated from 6.5 to 10 larvae/row m.
Document Type: Research article
Publication date: 1980-04-01
- 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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