What's your question? Ask

Plum Trees

Q.Black Growth On My Plum Tree.

Zone 47868 | Rooneyjohn2011 added on March 12, 2024 | Answered

Im trying to find out what the black growth is on my plum tree. I would like to know what I should do to fix the problem. Thank you.

A.Answers to this queston: Add Answer
Certified GKH Gardening Expert
Answered on March 12, 2024

This looks like black knot fungus. It is very common in plums, and other related species. Control is quite difficult. You will need to remove any infected growth, and treat with fungicides, near constantly. This can be permanent, as well. Replacing the tree with something else from outside of the Prunus genus would be a more permanent option for control.


Was this answer useful?

Log in or sign up to help answer this question.

Did you find this helpful? Share it with your friends!

You must be logged into your account to answer a question.

If you don't have an account sign up for an account now.

Looking for more?
here are more questions about...
Plum Trees
Join Us - Sign up to get all the latest gardening tips!

Do you know a lot about gardening?
Become a GKH Gardening Expert