Learn about preventing and controlling powdery mildew the organic way. In this video Tricia from Peaceful Valley tells you what you need to know about treating powdery mildew.

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Beat problems safely with The Organic Gardener's Handbook of Natural Pest and Disease Control.

Find the answers to more than 800 challenges in The Complete Illustrated Handbook of Garden Pests and Diseases and How to Get Rid of Them.

Encourage helpful bugs and discourage harmful ones with Gardening with Good Bugs.