Open Access Research Paper Views (313) Download (15) Population density of Aphis fabae Scopoli (Hemiptera, Aphididae) and its natural enemies in intercropping of faba bean (Vicia faba L.) and dragonhead (Dracocephalum moldavica L.) Solmaz Azimi, Rouhollah Amini J. Bio. Env. Sci.6( 3), 542-550, March 2015. Key: Aphis fabae ScopoliBiodiversityBiofertilizerCoccinella septempunctata L.DragonheadHippodamia variegata Goeze Details