تأثير المستخلصات المائية لنباتي الحنظل (Citrullus colocynthis)‎ و التبغ (Nicotiana tabacum L.)‎ في هلاك العنكبوت (Eotetranychus cucurbilaccarum)‎ و حشرة المن (Aphis nerii)‎

Abstract EN

This study was conducted to evaluate the role of water extracts (0.25 , 50 , 75 and 100%) of (Citrullus colocynthis) and (Nicotiana tabacum L.) on mortality of (Eotetranyehus cucurbilaccarum) and (Aphis nerii).

The result showed there are an significant effective on the mortalty of insects.

The (Citrullus colocynthis) extraut cause (20 , 40 , 70 and 100%) and (30 , 50 , 80 and 100%) for (Eotetranychus cucurbilaccarum) and (A phis nerii) respectivehy while the (Nicotiana tabacum L.) (10 , 20 , 60 and 80%) and (10 , 30 , 50 and 70%) for (Eotetranychus cucurbilaccarum) and (Aphis nerii) respectively.

The result show (Citrullus colocynthis) extract more effective thane (Nicotiana tabacum) extract at the same concentration