Exploring the Role of Environmental Factors on the Emergence of Leaf Blight of Mungbean in Maharashtra State, India

Leaf blight disease (LBD) of mungbean caused by Macrophomina phaseolina is one of the major yields reducing factor in mungbean (Vigna radiata (L.) Wilczek). Temperature and relative humidity play a significant role in development of this disease. In the present studies which was carried out at Agricultural Research Station, Badnapur during kharif 2017. The factors were found to have a temperature showing non-significant and humidity showing significant role in disease development on leaf blight under field conditions. Maximum temperature (31.40C), minimum temperature (25.610C) and relative humidity (84.04%) favored high disease development. Positive and non-significant correlation was observed between disease and temperature while significant, positive correlation was noticed between disease development and relative humidity. This is the first-time study on the impact of weather parameter on leaf blight of mungbean in Maharashtra State.