Natural enemy complex of Aphis craccivora Koch and Lipaphis erysimi (Kalt.) in and around Calcutta, West Bengal.
Aphis craccivora Koch and Lipaphis erysimi (Kalt.) are 2 of the most important aphid pests of leguminous and cruciferous vegetables in India. A list is given of organisms that naturally limit these pests, with a view to their possible use in biological control. These include 4 pathogenic fungi, 4 hymenopterous parasites and 20 predators (9 Coleoptera, 7 Diptera, 2 Hemiptera and 2 Neuroptera), which are listed together with the pest species attacked by them and the crop and locality from which pest and natural enemy were collected. The chrysomelid Aspidolopha sp. and the anthocorids Bilia castanea (Carvalho) and Orius albidipennis (Reut.) (all preying on L. erysimi on Brassica nigra) are recorded for the first time in India, and the aphelinid parasite Trioxys indicus Subba Rao & Sharma (from Aphis craccivora on Lablab purpureus (Dolichos lablab)), the coccinellid predator Micraspis discolor (F.) (Verania discolor) and the chrysopid predator Chrysopa sp. (both from L. erysimi on B. nigra) are recorded for the first time from West Bengal.