Topical application bioassays of cypermethrin, methomyl, profenofos, and sulprofos were done with the Louisiana State University laboratory strain (LSU-LAB) and field-collected strains of tobacco bud worm, Heliothis virescens (F.), from Louisiana, Mississippi, and Texas. The field-collected strains showed low to high levels of resistance to cypermethrin (2- to 41-fold), low to moderate levels of resistance to profenofos and sulprofos (2- to 8-fold) and low to moderate levels of resistance to methomyl (2- to 8-fold) compared with the LSULAB strain. Spray chamber bioassays indicated reduced efficacy of cypermethrin, endosulfan, profenofos, and thiodicarb against the field-collected strains of H. virescens when their responses were compared with responses of the Stoneville laboratory strain.
Document Type: Research Article
Publication date: June 1, 1995
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.