Records of aphids and their food plants, parasitoids and hyperparasitoids from North Bihar.
In a survey in different locations of a few districts of north Bihar, India, 15 species of aphids were recorded. Among these, Aphis craccivora, A. gossypii, Melanaphis sacchari, Rhopalosiphum maidis, Schizaphis graminum, Lipaphis erysimi, Macrosiphum miscanthi [Sitobion miscanthi] and Myzus persicae were found abundantly in most of the locations and could be considered as pests. Out of the above, A. craccivora, A. gossypii, R. maidis and L. erysimi severely infested crops including Dolichos lablab [Lablab purpureus], Lagenaria vulgaris [Lagenaria siceraria], Pennisetum glaucum and Brassica campestris. On other food plants small to moderate infestations of one or more species of aphids were observed. During the survey 7 species of parasitoids (Aphelinus gossypii, Aphidius colemani, Aphidius matricariae, Aphidius uzbekistanicus, Diaeretiella rapae, Lipolexis scutellaris and Trioxys indicus) were recorded on different aphid hosts. Two species of hyperparasitoids (Alloxysta pleuralis and Phaenoglyphis sp.) were recorded on T. indicus only.