Native Plants
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Ask Mr. Smarty Plants
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
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Wednesday - May 09, 2012
From: San Antonio, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Small oak tree with powdery mildew in San Antonio, TX.
Answered by: Jimmy Mills
QUESTION:
I have a small oak tree with powdery mildew. Is there anything I can do about? Will it kill the tree?ANSWER:
Almost all landscapes have plants that become diseased with one of the powdery mildews. These two fact sheets describe the disease and its cause, and give tips for prevention and control.
Ohio State University
Colorado State University
Although the powdery mildew is unsightly, it probably won’t kill your oak tree.
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