التأثير الحيوي للمستخلصات المائية و الكحولية لبعض النباتات في نسب هلاك عاملات النمل (Formicidae : Hymenoptera)‎ Linepithema humile

Abstract EN

The current study was to determine the effect of aqueous and alcoholic extracts from the following plants Nicotiana tabacum , Zygophyllum coccineum , Ruta chalepensis , Chenopodium murale and Sesamum indicum which teasted laboratory against ant workers Linepithema humile .

The results showed superiority of Nicotiana tabacum in achieving the highest percentage rate of mortality for ant workers amounted to 75.37 % followed by Zygophyllum coccineum at arate of 54.9% ,while Chenopodium murale least impact as loss rate ratios were 2.49 % during the same period of treatment ,and the alcoholic extracts of plant are the most efficient compared with aqueous extract ,the results also showed that mortality rate increase proportional with increasing concentrations in rate 9.7 % , 10.9% ,21.4 % and 31.4 % for concentrations 10, 20, 25, 50 % respectively .