This young apple tree’s trunk looks pretty sick, but it still has green leaves – is it apple canker? There are other apple, cherry and plum trees nearby – should i remove the tree, roots and all? and will i be able to plant another fruit tree in that location. Thanks for your advice.
Take out any loose bits around the wound. Control grass within a two-metre diameter. Feed in spring with sulphate of potash at 50g per square metre to harden the wood.
There is no threat to other kinds of fruit tree.