Powdery mildew of Chilli

Chilli crop is susceptible to various diseases and amongst them, powdery mildew is one of the serious threats to chilli production. The main cause of this disease is Leveilulla taurica fungus. Due to severe defoliation, it becomes one of the major restricting factors in fruit growth. The infection reduces the photosynthetic activity and transforms the physiological structure of the plant that gradually leads to a decline in yield.

Symptoms

During the initial stage, white powdery coating starts to develop on the lower surface of the leaves and yellow patches appear on the upper side correspondingly. After some time, the affected area turns brown and converts the entire surface into yellowish colour. In most severe cases, infected leaves become dry and shed from the plant. Powdery mildew also affects branches and fruits, consequently, the growth of young fruits stops and they fall from the plant prematurely.