The stalk, up to 4 ft, is covered with black spots that get denser and slowly cover most of the surface. Does anybody recognize what is causing this problem and how to address it? The leaves above look green an healthy. Please, email me if you have any information. Thank you. Antoaneta
Black Dots on Bamboo Stalk
Certified GKH Gardening Expert
This looks like a fungus issue and may even be the results of root rot.
There is treatment for most fungus issues but root rot can be devastating to the plants.
Here is a link with more information.
Thank you very much! We will try the fungus treatment.