Leaves missing

[Stoatally]

We have a small tree in the back garden, I think its an acer, but not sure which.

 

It mostly looks full of health, except nearly a third of it is completely bare.

 

One of the main branches has no leaves at all, it has buds but they look like they gave up a little while ago.

 

Any ideas on what caused it? does it need any action? Also, any chance of a more definite ID?

[Jonas]

sounds/looks like verticillium wilt

[fagus]

Verticillium wilt is likely. I think it is a Maple but would need to see/know more about it to be certain. Does it colour up a lot in the Autumn.

[Pinkfoot]

Looks like Acer Pseudo plat "Worlii".Yellow sycamore . They do get wilt.

Often they will live with it , losing branch or branches.

[fagus]

Acer Pseudo plat "Worlii".Yellow sycamore. Could well be Pinkfoot; but the leaves are so pointed from the images I can find. Does the type vary?

[Pinkfoot]

I have never really studied them that closely ,but they are bound to vary .

[Paul Cleaver]

if we can see a section of cut stem - v wilt shows as a circular dark band

[Pinkfoot]

if we can see a section of cut stem - v wilt shows as a circular dark band

 

Generally dies back down one side before killing the rest of the branch .

Really bad on Acer plat.

[Stoatally]

Section of the branch that's effected