Toxicological studies of neem oil (a.i. azadirachtin) and two synthetic insecticides against Tribolium castaeum Herbst. | [Pakistan Journal of Entomology • 2012]

Author(s):

1. Seema Tahir: Department of Zoology, University of Karachi, Karachi, Pakistan

2. Tahir Anwar: Pesticide Research Institute, Southern Zone Agricultural Research Center Pakistan; Agricultural Research Council, University Campus, Karachi, Pakistan

Abstract:

Experiments were carried out to evaluate the toxicity of two synthetic pyrethroids i.e. cypermethrin and imidacloprid and a botanical neem oil (a.i. Azadirachtin) against red flour beetle, Tribolium castaneum Herbst. at different concentrations using bioassay techniques. In repellency assay, both pyrethroids along with neem oil repelled the T. castaneum adults significantly .The results showed that both pyrethroids have the toxic effects even on low doses whereas the neem oil had no toxic effects but it repelled and dettered the insects which also enhanced their residual effects on grain seeds. Fumigation toxicity with sublethal concentrations of the compound significantly reduced the oviposition potentials of adults and thus the neem oil can be used as a safe grain protectant.

Page(s): 123-127

DOI: DOI not available

Published: Journal: Pakistan Journal of Entomology, Volume: 27, Issue: 2, Year: 2012

Keywords:

Keywords are not available for this article.

References:

References are not available for this document.

Citations

Citations are not available for this document.

Citations

Downloads

Views