Acer Tree coral spot issue?

[Bat135]

Hi,

I have the following acer tree.

pictures below.

a large limb snapped off in the summer and I cut it back to the collar. Not the correct time I know but felt it better than leaving a rough snapped branch break.

i went to check it out this November and noticed breaking bark lower down from the cut and coral spot around the discoloured, breaking bark.

its a major limb so don’t really want to remove it below the infection but also want to stop the tree dying completely. Does anybody have an experience or advice on what to do? Will it survive if left? Can I treat it without removing basically half the tree below the infection?

Any advice would be appreciated. I am hoping it won’t be fatal as it’s a wonderful tree.

https://www.gardeninghelp.uk/applic...hp?id=94&key=8806437b373b6c943a1a4989cbd473be

https://www.gardeninghelp.uk/applic...hp?id=94&key=8806437b373b6c943a1a4989cbd473be

 

[Bat135]

 

[Bat135]

 

[Sheal]

This link may be of help to you @Bat135....

Coral spot / RHS Gardening

Coral spot is a fungal disease of woody plants causing branches to die back. Small orange or coral-pink raised spots (pustules) form after the branch dies. The presence of coral spot often indicates that the plant has been weakened by other factors.

www.rhs.org.uk

The tree looks old and past it's best and with the appearance of the coral spot suggests it's dying. If you remove that inner trunk it will not only ruin the shape of the tree but may not stop it from dying. Personally I'd remove the whole tree and choose something else to plant there. Sorry!