Hi,
We have a walnut tree close to our house which has a bleeding canker that has been enlarging in the 5yrs we have lived here.
In terms of the general tree health, it has fruited twice in the last 5 years (most walnuts good, some necrotic but maybe from drying process). In the past we have removed petrified branches up to a metre long, and in recent winds lots of small fallen branches. Some has a yellow lichen. Due to the shape of the tree, there is quite a deep separation in pics as seen too.
Just wondering if anyone knows what this is/what treatment we can do? Have read that excavating and cauterizing the canker could be an option? Or taking weight of the limbs/pollarding?
Thanks
whole treeBleeding CankerTree seperation 1Tree Seperation 2
