Toxicity of Abamectin and Hydramethylnon to Insecticide-susceptible and Resistant Strains of German Cockroach (dictyoptera: Blattellidae),
نویسنده
چکیده
The toxicities of two new insecticides, hydramet.hylnon and abamectin, were evaluated against one susceptible and seven insecticide-resistant strains of 81attella gennanica. (L.) Both materials proved to be potent insecticides against the susceptible strain. There was no difference in toxicity, based on LTfoO values, of hydramethylnon between resistant and susceptible strains in a feeding bioassay. Likewise. there was no significant cross-resistance to abamectin (based on LOw values) detected in seven resistant strains by topical application. However, two strains did show significant cross-resistance to ablllnectin based on LD9!. values. These results suggest that in German cockroaches cross-resistance to hydramethylnon may be rare and cross-resistance to abamectin may be limited.
منابع مشابه
Attractiveness of insecticide baits for cockroach control (Dictyoptera: Blattellidae): laboratory and field studies.
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