Q.Azalea
The branches on my bush have a green type mold on them. Also, there are what appears to be black bubbles on the branch. Can you tell me what to do with it?
Certified GKH Gardening Expert
The greenish mold is lichen and is commonly seen on stressed plants. It will not harm the azalea but is merely a signal that something else is going on with the shrub. Here is more info: https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm
As for the black on the branches, it is most likely either sooty mold or sooty canker. Here is more information on these diseases:
https://www.gardeningknowhow.com/ornamental/trees/tgen/tree-disease-identification-sooty-canker-fungus.htm
https://www.gardeningknowhow.com/plant-problems/disease/how-to-get-rid-of-sooty-mold.htm
