Value of Stalk Shredders in Pink Bollworm Control1,2

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Four types of stalk-shredding operations, including both horizontal-rotary and vertical-flail shredders, were compared with a nonshredded check at Phoenix, Arizona, the winter of 1966-67 for effectiveness in reducing spring moth emergence of Pectinophora gossypielia (Saunders). The test was conducted in a field of Pima cotton which had been infested heavily with the pink bollworm during the 1966 growing season. Additionally, of the horizontal-rotary shredders was evaluated in an adjacent field of upland cotton. In the winter of 1967-68, a horizontal-rotary and 2 vertical-flail shredders were evaluated at Mesa, Arizona, on upland cotton, and a vertical-Hail was tested on Pima cotton at Safford, Arinzona. Hand-harvested stalks comprised the nonshredded checks in each experiment. Results indicated that the shredders had little, if any, direct influence on reducing pink bollworm populations in any of the experiments. All machines satisfactorily shredded the stalks which permitted better burial of plant debris.

Document Type: Research Article

Publication date: August 1, 1970

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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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