Azalea Plants
Q.

Brown/Black spotted Azalea leaves

Anonymous added on August 16, 2015 | Answered

Two years ago I moved into the family homestead. In my mother's garden, she had planted 3 Azalea bushes. In the 2 years I have been here, the leaves turn spotty brown and black after flowering. I have cut and disposed of diseased branches both years but the fungus(?) keep returning. Could it be the soil or diseased plants and, if so, what can be done to revive them?

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on August 18, 2015

Try treating with Neem Oil.
If the disease is persistent it may need to be addressed at the soil level.

Solarization may be necessary to stop the spread of the fungus.
Here are some links for you.

https://www.gardeningknowhow.com/plant-problems/pests/pesticides/neem-oil-uses.htm
https://www.gardeningknowhow.com/ornamental/shrubs/azalea/common-azalea-problems.htm
https://www.gardeningknowhow.com/garden-how-to/projects/how-to-solarize-garden-beds-to-eliminate-garden-pests-in-the-soil.htm

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