Academic Journals Database
Disseminating quality controlled scientific knowledge

Effect of some plant extracts on the Culex pipiens molestus

Author(s): M. A. Mustafa | A. Al-Khazraji

Journal: Iraqi Journal of Veterinary Sciences
ISSN 1607-3894

Volume: 22;
Issue: 1;
Start page: 9;
Date: 2008;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

Keywords: Plant extracts | Culex molestus | Instar

A preliminary study was conducted to investigate the effects of the extracts of eight plant species collected from Ninavah governorate on the second instar of larval stage of Culex pipiens molestus Forskal. Three out of the eight plant extracts Azadirachta excelsa Jack, Cleome glaucescens Dc. and Quercus infectoria DL. caused 100% mortality of larvae at a concentration of 200 µg/mL after 3days of treatment. The LC50 values were less than 150µg/mL (62.5µg/mL-140µg/mL). The A. excelsa leave extract showed mortality on larval and pupal at low concentrations 40µg/mL-10µg/mL also affected in delaying larval development. The extracts of Achillea santolina L., Ammi majus L. and Ricinus communis L. caused high mortality to the larvae after 7 days of treatment, but the Datura stramonium L. and Carum petroselinum Benth extracts did not cause any mortality to the larvae at the same date.
Affiliate Program     

Tango Jona
Tangokurs Rapperswil-Jona