Laboratory Evaluation of Toxicity of Insecticide Formulations from Different Classes against American Cockroach (Dictyoptera: Blattidae).

Journal of Arthropod-Borne Diseases

卷:8

Ruhma Syed¹  Rooma Adalat¹  Abida Abdul-Sattar¹  Farkhanda Manzoor¹  Azka Syed¹ 

[1] Department of Zoology, Lahore College for Women University, Lahore, Pakistan.;

关键词: Efficacy;    Insecticides;    Periplaneta americana;    Resistance;    Topical bioassay;   

DOI  :  

来源: DOAJ

【 摘 要 】

Background: The present study was designed to investigate the insecticidal efficacy of four different classes of in-secticides: pyrethroids, organophosphates, phenyl-pyrazoles and neo-nicotenoids. One representative chemical from each class was selected to compare the toxicity: deltamethrin from pyrethroids, Dichlorovinyl Dimethyl Phosphate (DDVP) from organophosphates, fipronil from phenyl-pyrazoles and imidacloprid from neo-nicotenoids. The objec- tive of this study was to determine which of these insecticides were most effective against American cockroach. Methods: These insecticides were tested for their LC50 values against Periplaneta americana under topical bioassay method, using different concentrations for each chemical.Results: Fipronil 2.5% EC was highly effective at all concentrations applied, while DDVP 50% EC was least toxic amongst all. One way analysis of variance confirmed significant differences between mortality of P. americana and different concentrations applied (P< 0.05).Conclusion: Locality differentiation is an important factor in determining the range of resistance between various localities, as all three localities behaved differently in terms of their levels of resistance.

【 授权许可】

Unknown