Powdery Mildew on Omaha Trees and Shrubs
A foliage disease that shows up in warm, humid summer weather on dogwood, lilac, rose, and crape myrtle.
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What powdery mildew is
Powdery mildew is a foliage disease that usually begins to appear in summer, when the weather turns warm and humid.
Dogwood, lilac, rose, and crape myrtle are among the species most susceptible to mildew, making it a common sight on ornamental plantings in Omaha yards through the warmer months.
How to control it
Thinning dense plants helps suppress the disease by improving air circulation and reducing the humid microclimate mildew needs to spread.
Preventative fungicide treatments are also effective at suppressing powdery mildew before it takes hold on susceptible plants.
Related reading
See all guidesScab
Another common foliage disease affecting ornamental trees in Omaha landscapes.
Anthracnose
A fungal leaf disease with a similar seasonal pattern to powdery mildew.
Plant Health Care
Our plant health care program includes preventative fungicide treatments for powdery mildew and other foliage diseases.
