Knowledgebase
Cherry tree concerns #867758
Asked May 09, 2024, 2:19 PM EDT
Isanti County Minnesota
Expert Response
The big issue is the black material at the bottom. This is bacterial canker. Here is a good publication. https://treefruit.wsu.edu/bacterial-canker-in-washington-sweet-cherries/#:~:text=Bacterial%20canker%20disease%20in%20sweet,weeds%20found%20on%20orchard%20floors.
The heart of the trunk is rotting. On this decay, fungi moves in and takes the shape of bracket fungi which is not the name of a particular species of fungus but which refers to the shape of the fungus in tiers outside the decayed trunk. https://www.rhs.org.uk/biodiversity/bracket-fungi
It is possible that the initial injury was a lawnmower housing hitting the base of the tree and allowing the bacteria to enter.
This disease can be controlled when it is on a small branch but I doubt that this tree can be saved. If you wish to get a second opinion, contact an arborist. The U does not recommend specific venders. https://extension.umn.edu/planting-and-growing-guides/how-hire-tree-care-professional
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On May 9, 2024, at 2:43 PM, Ask Extension <<personal data hidden>> wrote:
Remove the tree and as much of the roots as possible.
Wait a year and plant in the spring of 2026.
You should install mulch for at least a foot around the tree so that a mower or weedwhacker does not touch the bark. Also bark sleeves should only be on from Dec 1 to 4/15 and should not touch the bark