Vol. 11, Issue 12 (2022)

Powdery mildew disease (Erysiphe cichoracearum DC) is one of the most widely spread and destructive disease of okra (Abelmschus esculentus (L). Moench.), causing accountable quantitative as well as qualitative losses. The present studies on influence of weather parameters on powdery mildew during Kharif, 2018, the correlation-coefficient between weather parameters and powdery mildew disease severity on two okra cultivars revealed that maximum and minimum temperature, RH-I and II, wind velocity and rainfall were negatively correlated with the disease severity in both okra cultivars. Whereas, during Rabi, 2019, the correlation-coefficient between weather parameters and powdery mildew disease severity on two okra cultivars revealed that maximum and minimum temperature and wind velocity and rainfall were positively correlated with the disease severity in both okra cultivars.