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Seasonal Abundance and Impact of the Cottonwood Twig Borer on Cottonwood Trees

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Abstract:

Overwintered larvae of Gypsonoma haimbachiana (Kearfott) resumed feeding in new twig growth during mid-March in 1970 and 1971. Adult moths appeared in mid-April and were present until late November. There were 2 seasonal peaks in egg numbers for both years. Late season peaks gave rise to damaging larval populations with near 100% terminal kill by late August or September.

Document Type: Research Article

Publication date: October 15, 1975

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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.
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