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My zucchini got hit by powdery mildew pretty bad this year.
How long should I wait before I grow other susceptible plants in that area?
I was going to grow snow peas there, but I'll be putting them elsewhere since they apparently get affected by it too.
Is there much point in waiting like this, or are the spores just going to be in the soil forever and I would be better off just focusing on preventative treatments or find resistant varieties?