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Q.What Is The Circle Of Black Spots That Is Growing On The Underside Of The Leaves On My Stocks

Zone 92083 | averine1@bigpond.com added on May 22, 2020 | Answered

they are in a pot with other flowers and all are doing well, including the stocks.

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Certified GKH Gardening Expert
Answered on May 25, 2020

Unfortunately, your photo did not come through. I am unable to ID the problem. Normally, black spots will be bacterial, or fungal. This will signify that the soil does not get a chance to dry out thoroughly between waterings.

Here are some articles to help:




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