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1973•Journal of Economic EntomologyRequires access

German Cockroach Resistance. 1. Resistance to Diazinon Includes Cross-Resistance to DDT, Pyrethrins, and Propoxur in a Laboratory Colony1

William Collins

Open publisher page 18 citations

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.

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What this paper is about

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.

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Available 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.

Key concepts: Diazinon, Propoxur, Malathion, Biology, German cockroach, Cross-resistance, Toxicology, Pesticide

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German Cockroach Resistance. 1. Resistance to Diazinon Includes Cross-Resistance to DDT, Pyrethrins, and Propoxur in a Laboratory Colony1 — Research Paper | ScholarLens