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Q.Plant Disease

Anonymous added on March 12, 2011 | Answered

Do plant diseases such as rust, black spot, powdery mildew, and blight affect all areas of the United States? When are these diseases active?

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Certified GKH Gardening Expert
Answered on March 14, 2011

Yes, all of those named do affect all over the US. Mostly they are seen while plants are growing outside, but a few, like powdery mildew, can be seen on houseplants year round.

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