Q.Valsa Canker
Any suggestions on how to handle valsa canker on a maple tree? Just showed up this spring, good location well watered trees.
GKH_Susan
Certified GKH Gardening Expert
Certified GKH Gardening Expert
Answered on June 11, 2021
These articles should help:
https://www.gardeningknowhow.com/ornamental/trees/maple/maple-tree-bark-disease.htm
https://www.gardeningknowhow.com/ornamental/trees/tgen/cankers-on-trees.htm
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