What's wrong with this hornbeam

[Jbellars]

I'm a gardener and in one of my estates I've recently taken on has two hornbeams and I don't know what's wrong with them, could anyone help me out

My main concern it's next to a huge apple orchard and wondered if it would be infectious to them

[Fredward]

I believe they are cankers, although I can't really help much more. Is it isolated to this one limb or is there more?

[Jbellars]

There's more it's about a foot up the trunk and on several others, seems to be happening to the other hornbeam aswell, starting to yellow the foliage

[Jbellars]

Got more pics if thy help just not sure how to get em up

[Jbellars]

Another

[felixthelogchopper]

Looks a bit like Pseudomonas syringea (not sure of spelling) but I don't know if this attacks Hornbeam as well as Ash.

[Tony Croft aka hamadryad]

I might be so bold as to suggest a little Armilaria

[Jbellars]

Pics are of a hornbeam, would it be infectious to apple trees as right next to 30 acre cider orchard

[treeseer]

The basal picture highlights the need to remove soil etc. from the stem area, remove any dead tissue from the stem, and examine the soil/tree interface. Conjecture without diagnosis is very limited, and conclusions are impossible.