Leaf spot Disease of Ginger

Leaf spot is caused by Phyllosticta zingiberi and the disease is noticed on the leaves from July to October. The disease starts as a water soaked spot and later turns as a white spot surrounded by dark brown margins and yellow halo. The lesions enlarge and adjacent lesions coalesce to form necrotic areas. The disease spreads through rain splashes during intermittent showers. The incidence of the disease is severe in ginger grown under exposed conditions.

Control: The disease can be controlled by regular spraying of Bordeaux mixture 1% or mancozeb 0.2%.