What is the black “growth” on several branches in the picture? - Ask Extension
What is the black “growth” on several branches in the attached picture?
Knowledgebase
What is the black “growth” on several branches in the picture? #795278
Asked June 10, 2022, 1:05 PM EDT
What is the black “growth” on several branches in the attached picture?
Leelanau County Michigan
Expert Response
Hello,
This is called Black Knot- a fungal disease that affects members of the Prunus family, which includes native plum and cherry trees as well as fruit trees and ornamentals. Here is more information about this fungal disease:
https://extension.umn.edu/plant-diseases/black-knot
Thank you for contacting Ask Extension.
Ruth
This is called Black Knot- a fungal disease that affects members of the Prunus family, which includes native plum and cherry trees as well as fruit trees and ornamentals. Here is more information about this fungal disease:
https://extension.umn.edu/plant-diseases/black-knot
Thank you for contacting Ask Extension.
Ruth
