EVALUATING OF SOME ENVIRONMENTALLY SAFE CON TROL METHODS TO MANAGE SOME APHID SPECIES INFESTING SOME MEDICINAL AND AROMATIC PLANTS IN EGYPT

Abstract

This study was on some medicinal and aromatic plants the medicinal and aromatic plants play in important economic crops and the important role in industries these plants contain chemical compound s used as medicinal comities ,perfume and used in other purposes as spices the medicinal and aromatic plants are considered as economic crops and flavoring for appetizing the medicinal and aromatic plants they play on economic value for local and exterior markets and they on important role used as fresh or dry herbs . the medicinal and aromatic plants on important role in the Egyptian national in come by exporting to different countries in the world in addition of the local consumption . Ι. Ecological studies: Ecological studies were carried out on some aphid species infesting some medicinal and aromatic plants at Qalyubiya and Fayum governorates. 1- Surveying some aphid species infesting some medicinal and aromatic plants and associated predators during 2013/2014 and 2015 seasons: Nine Aphids species (Hemiptera: Aphididae) were collected from different medicinal and aromatic plants at different localities in Egypt throughout three successive years from 2013 to 2015. These nine aphids were collected from 56 medicinal and aromatic host plants whereas A. gossypii was found on the highest number of host plants (19 plants), followed by M. persicae that was found on 16 host plants. While Acyrosiphon pisum was found on Brassica oleracea (Collard greens) . 2- Ecological studies: Some ecological studies were carried out throughout two successive seasons; 2013/2014 and 2014/2015 at both Fayoum and Qalyubiya Governorates to determine the population dynamics of some aphid species infest certain medicinal and aromatic plants as well as to evaluate the effect of their associated natural enemies and some of weather factors on changes in their population densities throughout the two successive seasons in the both governorates:-