• Mosaic pattern or mottling on foliage.
• Stunting sterility and leaf distortion

Management

• Uproot and destroy the affected plant

Important Prophylactic Measures

• Timely shade management
• Avoid excess moisture
• Allow free movement of air
• Avoid overcrowding of vines by keeping adequate spacing
• Avoid excessive mulching during rainy season and mulching with materials that are not easily decomposed
• Avoid excessive manuring and use of fresh cow dung.
• Apply recommended doses of bio agents like Trichoderma , Pseudomonas , Bacillus etc.
• Collect and destroy the parts of plants showing disease symptoms.

To prevent the chances of multiplication of these fungi and spread of these diseases, the following should be adhered to ,

• Avoid excessive use of manure, mulch and irrigation
• Cut and remove disease affected plant parts and burn them.
• Do not use planting materials procured from infected gardens.
• Avoid close planting of vines and over crowding. Follow the recommended spacing.
• Viral disease affected vines should be uprooted and burnt.
• Do not use implements, which have been used on disease-affected plants on healthy plants without thoroughly washing and cleaning them.