Effect of some plant extracts on the Culex pipiens molestus Forskal larvae

الملخص EN

A preliminary study was conducted to investigate the effects of the extracts of eight plant species collected from Nineveh governorate on the second instar of larval stage of Culet pippins molest us Forsake.

Three out of the eight plants extracts Azadirachta excels Jack, Cleome glaucescens Dc.

and Queues infector a 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.

excels leave extract showed mortality on larval and pupil at low concentrations 40µg / mL-10µg / mL also affected in delaying larval development.

The extracts of Achilles semolina L., Ammo magus L.

and Ricin us communist L.

caused high mortality to the larvae after 7 days of treatment, but the Matura stramonium L.

and Carom petroselinum Bent extracts did not cause any mortality to the larvae at the same date.