Influence of weather parameters on yellow mosaic virus disease incidence in greengram and blackgram in Pudukottai District of Tamil Nadu

The present work was carried out to study the influence of weather parameters on Yellow Mosaic Virus (YMV) in Pudukottai district of Tamil Nadu. The results of the field experiment conducted at National Pulses Research Centre revealed that the maximum temperature positively correlated with the Yellow Mosaic Virus (YMV) incidence during Kharif, Rabi and Summer in blackgram. The minimum temperature, maximum and minimum relative humidity (RH) negatively correlated with the YMV during Kharif, Rabi and Summer in blackgram. The minimum temperature positively correlated with the YMV incidence during Kharif, Rabi and Summer in greengram. The maximum and minimum RH along with rainfall negatively correlated with the YMV disease incidence during Kharif, Rabi and Summer season in greengram