My Japanese Acer has just died about half way up the stem of the tree. It is in a pot in a shaded area of my garden. I have tried finding out what is wrong with it but cannot find out why. It started out with growing around the centre of the trunk and then moved up and along the branches killing all the leaves on the way. Please help, have I lost my lovely acer?
Japanese Maple Dying
Certified GKH Gardening Expert
Is the tree being adequately watered? Is the pot well draining? To dry can cause the browning and drying leaves, as well as if the roots are sitting in to much water. Soggy roots can lead to root rot.
This also could be fungus, so I would treat the tree with something like Neem Oil.
You also may want to move to a partial shade location and give it more sunlight.
Here are a few links to help you pinpoint the issue, but certainly start with water and sunlight.