white mold on leaves - Knowledgebase Question

crossville, Te
Question by monkeprncs
June 3, 2010
i started my veggie garden and my zuccini and cucumber plants are growing nicely but they have this white powdery mold on the leaves i sprayed a fungus spray but it does not seem to go a way. the plants are about 6-8 inches tall now.what am i to do.

Answer from NGA
June 3, 2010


What you describe sounds like powdery mildew and if so, it is extremely difficult to control once established, as you have discovered. Once a plant is fully involved, there's just no stopping the disease. There are some resistant vegetable varieties so be sure to choose those next time you plant. Removing affected plant parts as soon as you see them and using a fungicide can sometimes protect unaffected plant parts, but it doesn't always work. I'd remove the plants from the garden before the disease spreads to nearby plants and choose disease resistant varieties as replacement plants.

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