- Both usually affect only the leaves, which attack the lower and upper parts of the leaves.
- Downy mildew (Plasmopara viticola) affects many plants and appears as yellow to white patches on the lower surfaces of older leaves. On the undersides, this area appears white to brown in color.
- Powdery mildew also affects many plants and appears as yellow to white spots on the upper surfaces of old leaves.
- For the management of these, azoxystrobin is sprayed at the rate of 11% + tebuconazole 18.3% SC @ 300 ml / acre or azestrobin @ 300 ml / acre or tebuconazole 10% + sulfur 65% WG @ 500 gram / acre.
- Spraying Trichoderma viridis @ 250gram / acre + Pseudomonas fluorescens @ 250gram / acre as a biological treatment
Gramophone
