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powdery mildew of vegetable pea

Causal organism:

It is caused by Erysiphe cichoracearum DC. Outbreak of this disease is associated with dry weather.


Ø It attacks leaves first producing faint, Leaves of pea plant affected by powdery mildewPods of pea affected by Powdery mildew

Ø slightly discolourd specks from which grayish white powdery growth of mycelium and spores spread over leaf, stem and pod.

Ø The leaves turn yellow and die.

Ø The fruits do not either set or remain very small.

Ø It causes defoliation.

The disease develops late in season and reaches to maximum intensity at the time of pod formation. The early cultivars escape the disease.

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