Transmission efficiency of Mungbean yellow mosaic virus by indigenous and B-biotype whiteflies

Among the major constraint in the successful cultivation of mungbean is the occurrence of Mungbean yellow mosaic virus(MYMV)/Mungbean yellow mosaic India virus (MYMIV). The MYMV is transmitted easily by the whitefly Bemisia tabaci. Transmission studies revealed that single whitefly of B-biotype and indigenous B. tabaci was able to transmit MYMV. The B-biotype had less acquisition access period and inoculation access period to acquire and transmit the virus in comparison with the indigenous whitefly. The latent period in the vector after acquisition access period was found to be four and six hours in B-biotype and indigenous whiteflies respectively. Active transmission of virus was found to be 53.3 and 33.3% in case of female and male of B-biotype respectively as compared to indigenous whiteflies.