Effect of Larval Age and Mortality Level on Damage to Cotton by Heliothis zea Infected with Baculovirus heliothis
Authors: Stacey, A. L.; Young III, S. Y.; Yearian, W. C.
Source: Journal of Economic Entomology, Volume 70, Number 3, June 1977 , pp. 383-386(4)
Publisher: Entomological Society of America
Abstract:Bollworms released as 1st-stage larvae on cotton damaged an avg of 4.4 squares and 1.6 bolls/larva from time of release until pupation. Square damage was reduced by ca. 50% when 1st-, 2nd-. or 3rd-stage larvae were released following treatment with Baculovirus heliothis at mortality levels of 30, 60 or 98%. Square damage was comparable regardless of larval age at treatment or mortality level. However, boll damage was significantly reduced when larvae were treated in the 1st or 2nd stages. The greatest reduction in boll damage was accrued by treatment of 1st-stage larvae at the 98% mortality level.
Document Type: Research Article
Publication date: June 1, 1977
- 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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