Next year you could try different varieties - I know that some are more resistant to powdery mildew than others.
Ways to control it - water the roots not the leaves of the plants, and remove all affected leaves as soon as you see them. Keep the plants fed so they are strong enough to replace lost leaves and fight the virus.
Oh, and if you can grow these somewhere different next year it may give the virus time to clear from the soil.
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Date: 2010-09-21 08:28 am (UTC)Ways to control it - water the roots not the leaves of the plants, and remove all affected leaves as soon as you see them. Keep the plants fed so they are strong enough to replace lost leaves and fight the virus.
Oh, and if you can grow these somewhere different next year it may give the virus time to clear from the soil.