Toxicity Studies of Some Inert Dusts with the Cowpea Beetle, Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae)

Research Article

**Toxicity Studies of Some Inert Dusts with the Cowpea Beetle, Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae)**

Shah Hussain Ahmad Mahdi and M. Khalequzzaman

The present study has been undertaken to find out the effectiveness of DE and some other inert dusts like, kaolin powder, paddy husk ash, coal ash, alluvial soil, china clay and a dust formulation insecticide carbaryl on the cowpea beetles Callosobruchus maculates (F. ). The bioassay of the dusts was done on adult beetles by applying them with normal food. The LD₅₀ of C. maculatus after 24 h was 737.15, 73305.15, 1479.29, 11449.60, 117371.50, 5171.79 and 21.49 ppm for diatomaceous earth, kaolin powder, paddy husk ash, coal ash, alluvial soil, china clay and carbaryl, respectively. The LD₅₀ after 48 h was 385.24, 12078.10, 974.11, 7433.71, 10650.42, 1168.22 and 11.25 ppm for diatomaceous earth, kaolin powder, paddy husk ash, coal ash, alluvial soil, china clay and carbaryl respectively. The order of toxicity of the insecticides was carbaryl > diatomaceous earth > paddy husk ash > china clay > coal ash > alluvial soil> kaolin powder.

PDF Fulltext XML References Citation

How to cite this article

Shah Hussain Ahmad Mahdi and M. Khalequzzaman, 2006. Toxicity Studies of Some Inert Dusts with the Cowpea Beetle, Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae). Journal of Biological Sciences, 6: 402-407.

DOI: 10.3923/jbs.2006.402.407

URL: https://scialert.net/abstract/?doi=jbs.2006.402.407

Journal of Biological Sciences

Article Trend

Total views 259

Authors

Shah Hussain Ahmad Mahdi

M. Khalequzzaman

Keywords

Research Article

**Toxicity Studies of Some Inert Dusts with the Cowpea Beetle, Callosobruchus maculatus (Fabricius) (Coleoptera: Bruchidae)**

How to cite this article

Related Articles

Leave a Comment