Submitted by naipagropediaraichur on Tue, 13/03/2012 - 12:31
Posted in
Chilli Powdery Mildew
Causal organism: Leveillula taurica
Family: Erysiphaceae
Order: Erysiphales
Class: Plectomycetes
Sub. Division: Ascomycotina
Powdery mildew causing heavy yield loss ranging from 14 to 20 per cent, due to severe defoliation and reduction in photosynthesis, size and number of fruits per plant This disease is very common from November to February.
Powdery mildew
Symptoms:
- White powdery coating appears mostly on the lower surface
- Sometimes the powdery coating can also be seen on the upper surface.
- Correspondingly on the upper surface yellow patches are seen
- Severe infection results in the drying and shedding of affected leaves.
- Powdery growth can also be seen on young fruits, and branches.
- Diseased fruits do not grow further and may drop down.
Powdery growth on lower surface of leaves
Powdery gowth on upper surface of leaves
Chloratic spots on upper surface of leaves
Drying of leaves due to severe infection