A field-collected strain of Blattella germanica (L.) was highly resistant (LT5 resistance ratio < 90X) to bendiocarb. The strain, which was collected from public housing in Baltimore, Md., was found also to be resistant to chlordane (8.2 x), diazinon (3.7 x), malathion (6.5 x), and propoxur (13.3 x). Chlorpyrifos was still effective against this strain of German cockroach in both public housing and laboratory assays. Since the area where the parent stock was collected had been previously treated only once with bendiocarb, this is another example of cross-resistance. The laboratory-determined resistance level likely accounts for the control failures when bendiocarb was used in Baltimore Housing and Community Development units.
Document Type: Research Article
Publication date: December 1, 1982
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.