Management Tactics for the Sorghum Webworm in Sorghum
Authors: Hobbs, J. R.; Teetes, G. L.; Johnson, J. W.; Wuensche, A. L.
Source: Journal of Economic Entomology, Volume 72, Number 3, June 1979 , pp. 362-366(5)
Publisher: Entomological Society of America
Abstract:Damaging infestation levels of Celama sorghiella (Riley) were avoided by early planting of sorghum. Sorghum planted by Apr. 1 and flowering before June 20 in the Coastal Bend of Texas, and sorghum planted by Apr. 10 and flowering before July 1 in south-central Texas escaped damaging infestations of sorghum webworm.
Sorghum panicle type (open vs. compact) ratings and sorghum webworm infestation levels were positively correlated (r2 = 0.8). Data showed that as sorghum panicles increase in compactness, sorghum webworm densities also increase. There was no positive correlation between sorghum webworm infestation levels and seed endosperm type or panicle size. Also, no association was apparent between egg deposition and panicle type within 6 days of panicle exertion; webworm mortality was high by the 10th day after 50% flower.
Germ plasm resistant to sorghum web worm was difficult to identify, but differences in infestation levels indicated possible resistant sources.
Document Type: Research Article
Publication date: June 1, 1979
- 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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