Authors: Showers, William B.; Berry, Edwin C.; Von Kaster, L.

Source: Journal of Economic Entomology, Volume 73, Number 1, February 1980 , pp. 88-91(4)

Publisher: Entomological Society of America

Abstract:

Results of field studies during the summer of 1973, 1974, and 1978 indicated that sampling the population European corn borer moths (ECB), Ostrinia nubilalis (Hübner), in dense vegetation (action sites), predominately giant and green foxtailgrass, Setaria faberi Herrm. and S. viridis (L.) Beauv., respectively, could predict the potential 2nd-generation ECB populations in adjacent corn fields. Numbers of ECB egg masses on corn plants were highly correlated (r = 0.94, 1973; r = 0.91, 1974; r = 0.92, 1978) with numbers of female ECB moths/1-m² (min of 20, one-m² samples/sample date) in dense grass in waterways and near borders of corn fields. Treatment of these areas bordering corn fields with 2.26 kg AI/ha carbaryl killed ECB moths, significantly reduced numbers of egg masses deposited per plant in the corn fields (untreated borders, 3.3 egg masses/corn plant; treated borders, 0.2 egg masses/corn plant), significantly reduced ECB cavities per plant (untreated borders, 40.8 cm; treated borders, 14.3 cm), and significantly increased grain yield per plant (untreated borders, 192.1 g; treated borders, 210.0 g). A regression equation, based on numbers of female ECB moths per 1-m² of action site was developed for predicting potential 2nd-generation ECB populations in corn fields.

Document Type: Research article

Publication date: 1980-02-01

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.
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