الأثار السمية لثلاثة مستخلصات نباتية لأربعة نباتات محلية في الجبل الأخضر بليبيا في مكافحة الطورين الضارين (اليرقات والبالغات)‎ لخنفساء الطحين المتشابهة (Coleoptera : Tenebrionidae)‎ Tribolium confusum Duval

الملخص EN

This research was carried out in the laboratories of department of plant protection at the Faculty of Agriculture at the University of Omar Al-Mukhtar in El-Beida-Libya in 2015- 2016 to evaluate the effectiveness of three types of extracts (water, hexane and ethanol) for four local plant species(Juniperus phoenicia, Rosmarinus officinalis, Peganum harmala, Ricinus communis) in from Al Jabal al Akhadar /Libya in order to the control of the larval and adult stages of T.confususm by two methods direct contact extract and evaporation method of plant extract.

The results show that the larval stage were more sensitive to the extracted extracts from the adult stage when using the contact method whereas the adult stage was more sensitive than the larval stage when using the evaporation method.

The results appeared that there were no significant differences in the effect of the plant species on the larvae and adult stages when tested by contact method, while there were significant differences between the plant species where it was the best plant (Peganum harmala) followed by (Juniperus phoenicea) and (Rosmarinus officinalis) and finally the (Ricins communis) by evaporation method.

The best extracts effect was hexane extract followed by ethanol and finally the water with all species of plants in a contact method, while the best extracts were the impact of ethanol followed by the hydrolysis and finally the water in the way of evaporation.