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A biological control program for Heliothis species on cotton consisting of the naturally occurring predator-parasite complex and the nuclear polyhedrosis virus was integrated into a cotton-insect-biological-control program. Heliothis control with biological agents was compared with a toxaphene.DDT-1llethyl parathion control program using 25-30acre plots. The virus was applied at 1.2X1011 (20 Lu), 30x1011 (50 LU), and 6,OXI1011(100 LU) polyhedral inclusion bodies (PIBs) per acre. The initiation of virus applications was varied to evaluate the effectiveness of the virus against various ages of larvae, The Heliothis biological control program compared favorably with the insecticide program when virus application was initiated to coincide with hatch of high egg populations.
Document Type: Research Article
Publication date: December 1, 1966
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.