German Cockroach Resistance. 1. Resistance to Diazinon Includes Cross-Resistance to DDT, Pyrethrins, and Propoxur in a Laboratory Colony1
- 1 February 1973
- journal article
- research article
- Published by Oxford University Press (OUP) in Journal of Economic Entomology
- Vol. 66 (1) , 44-47
- https://doi.org/10.1093/jee/66.1.44
Abstract
A normal laboratory colony of Blatella germanica (L.) was selected for diazinon resistance. The selected colony developed resistance lo topical diazinon (26×) and malathion (27×), and became cross resistant to 3 other major classes of organic insecticides represented by DDT (>40×), propoxur (18×), and pyrethrins (23×). When injected, diazinon resistance decreased to 6× and DDT to 2×; resistance to injected propoxur (14×) or pyrethrins (34×) was not very different from their topical values, Reduced penetration of insecticide may be a resistance mechanism against some insecticides in this strain.Keywords
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