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Small whitish, hard sac on 2 azaleas. #749238

Asked May 11, 2021, 8:58 AM EDT

I just noticed these white crusty sacs/ growths on 2 azaleas. They are abundant. I see none on the other azaleas. So far I see no shrub damage. What is it, and how pro I treat this? They are non native azaleas, and have been in the woodland edge -yard for years.

Calvert County Maryland

Expert Response

This is a fairly common fungus that, while causing prominent symptoms, doesn't result in any notable health detriment to the plants it infects. You can clip off the affected leaves or stems and dispose of them, and the plant should regrow new foliage either this year or next. Here is a bit more information about this phenomenon: https://extension.umd.edu/resource/exobasidium-gall-azalea

Miri

Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied May 11, 2021, 10:40 AM EDT

Thank you! 

Melanie


The Question Asker Replied May 12, 2021, 7:44 AM EDT

You're welcome.

Answered by the Home and Garden Information Center (HGIC), University of Maryland Extension. For timely gardening information and tips, subscribe to our Maryland Grows blog and quarterly newsletter. Follow us on Facebook, Instagram, and YouTube. Replied May 12, 2021, 8:13 AM EDT

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