Phytophthora infestans
Symptoms:
Lesions on leaves appear as large watersoaked areas, that eventually turn brown and papery. Fruit lesions are large irregular greenish-brown patches having a greasy rough appearance. Green to black irregular lesions are also present on the stems.
Lesions on leaves appear as large watersoaked areas, that eventually turn brown and papery. Fruit lesions are large irregular greenish-brown patches having a greasy rough appearance. Green to black irregular lesions are also present on the stems.
Control:
The fungus develops during periods of cool wet weather. Fungicide sprays as a preventative measure during these periods may be needed if the crop is being grown near large areas of tomato relatives (Solanaceous weeds, potatoes).