Efficacy of Zingiber officinale on third stage larvae and adult fecundity of Musca domestica and Anopheles pharoensis.

The insecticidal activity of Zingiber officinale against the larval maturation and adult emergency of Anopheles pharoensis and Musca domestica 3rd stage was evaluated under controlled laboratory conditions. At A. pharoensis concentrations of 100%, 70%, 50%, 25%, 5%, 2%, 1%, 0.9%, 0.7%, 0.5% & 0.3% showed 100% larval mortality rate. 0.2% & 0.1% caused mortality of 66.7% respectively. On the other hand, the fecundity of emerged adults was zero% and 50%. In M. domestica the concentrations from 25%- 100% completely killed the larvae. 5%, 2% & 1% caused mortality percent of 66.6, 44.4 & 33.3 respectively. Less concentration of Z. officinale was not tried. The fecundity of the emerged adults was 66.7%, 25% & 16.7%. On the other hand, only one control larvae died and the nine emerged adults were fertile in the two cases. So, Z. officinale not only has a larvicidal action against M. domestica and A. pharoensis larvae but also affected the adult fecundity.