HELP - powdery mildew is taking over my gardens. I am spraying with baking soda/soap mixture. Can mildew survive the winter IN THE SOIL if the ground doesn't freeze solid? Will I hav e to tear out perrenials - like monarda? a "climbing" rose? an azalea? I don't want to use chemicals - we feed a lot of birds.
This message was edited Aug 7, 2009 3:36 PM
Mildew Massacree
This has answers to all of your questions, and it is accurate information. I see it is from the U of Calif at Davis:
http://answers.yahoo.com/question/index?qid=20070913115412AAhFT5B
Nutshell - Try using horticultural oil or neem oil at this point. But there is much more information there - so be sure to read.
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