Answer: Now that you know that overcrowding, dry soil and hot, humid air can encourage powdery mildew you can help avoid the problem in this year's garden by spacing plants far enough apart so there's good air circulation. It's also important that your veggie garden receive at least 8 hours of direct sunshine each day. You don't have to treat the soil, but it will help to keep fungal spores from splashing up from the ground to your plants if you place a 2-3" layer of mulch over the garden after planting your veggies. Cover all the bare soil and not only will you keep fungal spores from splashing up onto your plants, mulching will also help suppress weeds, slow evaporation and moderate soil temperatures. Following the above guidelines should make your veggies quite productive this year. Enjoy!
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