Microbial and Chemical Control of the Cabbage Looper on Fall Lettuce

Authors: Vail, P. V.; Seay, R. E.; DeBolt, J.

Source: Journal of Economic Entomology, Volume 73, Number 1, February 1980 , pp. 72-75(4)

Publisher: Entomological Society of America

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Field tests on fall lettuce in southern Arizona during 1970–71 demonstrated the efficacy of a nuclear polyhedrosis Virus isolated from Autographa californica (ACNPV) for control of Trichoplusia ni (Hübner). An application rate of 7.4 × 1011 polyhedra/ha provided adequate control when compared to Bacillus thuringiensis Berliner or chemical insecticides. IMC Shade®, a protectant, did not enhance the effectiveness of the virus as a control agent. Combinations of the ACNPV with reduced application rates of chemical insecticides provided as good a control as chemicals alone. Cabbage looper damage to lettuce heads and weights at harvest was markedly reduced in virus and insecticide-treated plots.

Document Type: Research Article

Publication date: February 1, 1980

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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