If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

Evaluation of Three Methods for Detecting Chlorpyrifos Resistance in German Cockroach (Orthoptera: Blattellidae) Populations

$28.00 plus tax (Refund Policy)

Buy Article:


Three methods for measuring German cockroach, Blattella germanica L., susceptibility to formulated chlorpyrifos (Dursban LO) were compared. Adult progeny from a cross between two field-derived colonies were compared with a susceptible laboratory strain through exposure to chlorpyrifos and xylene applied topically, and in glass jars at single and multiple doses. Resistance ratios (LX50 field รท LX50 susceptible) were 14.3, 7.8, and 2.0 for the topical application, multiple, and single concentration exposures, respectively. The single dose method failed to detect any differences in susceptibility (resistance ratio <3.0). Topical application should be considered when surveying for resistance to organophosphate insecticides or when lethal time values obtained from jar test do not agree with empirical observations.

Document Type: Research Article

Publication date: February 1, 1987

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.
  • Editorial Board
  • Submit a Paper
  • Subscribe to this Title
  • Information for Advertisers
  • Visit this journal's homepage
  • ingentaconnect is not responsible for the content or availability of external websites
Related content



Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more