Diseases of Fruit Plantation Medicinal and Aromatic Crops

Brown leaf spot of grapes

Brown leaf spot is caused by Cercospora viticola ( Ces.) Sacc ( Perfect stage; Mycosphaerella personata Higgins),

• The pathogen is normally prevalent in neglected gardens, during July- Dec in the grape growing areas.
• Dark brown, angular spots appear on leaves and young shoots. Sometimes young shoots get dried.
• The disease spreads through wind- borne conidia.
• High humidity favours the disease.
• Maintaining the garden in a healthy and vigorous conditions through proper manuring and cultural operations keeps the disease away.
• Mancozeb (0.25%) or Bordeaux mixture (1.0%) or benomyl (0.05%) spray is quite effective.
• Varieties like Australia No.2, Champach and Champion are resistant.