plant problem

Asked March 16, 2015, 5:28 PM EDT

growth on azelea plant. looks like leafy blueish scab. Killing plant. What is it (shown in photp) and how can I stop it. Dennis Townsend phone 864 457 5957

Spartanburg County South Carolina trees and shrubs pecan horticulture

1 Response

These are lichens and luckily they are not killing or harming the plant. They do often indicate that the plant is performing poorly. I have seen azaleas in full sun decline and have problems with thinning foliage, so lichens move in. Here is a video that may be helpful with explaining lichens. http://www.clemson.edu/extension/hgic/videos_posters/videos/lichens.html There would be another issue going on with the azalea leading to thinning foliage...which would need to be corrected to improve plant health :) hope this helps!