Nabil El-Wakeil

By Nabil El-Wakeil, Nawal Gaafar, Ahmed Sallam and Christa Volkmar

Part of the book: Insecticides

By Nabil El-Wakeil, Shehata Shalaby, Gehan Abdou and Ahmed Sallam

Part of the book: Insecticides

By Nabil El-Wakeil, Mahmoud Saleh, Nawal Gaafar and Huda Elbehery

Natural enemies are subjected to continuous deterioration in populations especially in modern agricultural systems characterized by complete removal of plants after harvesting as well as by insecticide applications. This complete removal of plants gives rise to disappearance of natural enemies after each crop season. Conservation biological control is the protection of NEs against adverse effects of pesticides and incompatible cultural practices and improving their efficiency via providing food sources. During non-crop periods, natural enemies may need of benefit from pollen and nectar. Preservation of natural enemies can be achieved by providing habitat and resources for NEs. This chapter aimed at discussing a suggested strategy for more efficient conservation biological control comprising collection, preservation and releasing the preserved natural enemies on target crops. The collection is mainly conducted before crop harvest and during winter from fruit orchards. Preservation greenhouses are dedicated for natural enemies rather than commercial production of crops. Natural enemies taken from preservation greenhouses are released in target crops during growing season. Different techniques used in collection, preservation and release of natural enemies are reviewed. Such a conservation biological control strategy might contribute to preserve the natural bio-diversity in the agricultural environment and provide natural alternatives to pesticides.

Part of the book: Biological Control of Pest and Vector Insects