I repotted this standard J. Maple about a week ago - but only noticed now that it's outside in daylight that what looked like a bit of discoloration is black and looks like diseased/dying cambium.
This is completely new to me, it's oddly in patches all over, don't know what it is or what to do. When I repotted it the roots all seemed to look good and healthy.
This is completely new to me, it's oddly in patches all over, don't know what it is or what to do. When I repotted it the roots all seemed to look good and healthy.