Hi everyone! I would like to ask for your help on my peach and nectarine trees’ gummosis issue.
I have one peach tree and one nectarine tree. They were planted last year. Today I noticed sap coming out of the wounded/cracked areas on their trunks. There isn’t a lot of sap. However, I am worried about their health of the trees and I am unsure what is causing it.
I will show you using pictures I took today
First is the peach tree:
It has a little bit of sap inside a structure which I think is the site where a branch was pruned. The site is on the main trunk.
The remaining pictures are from the nectarine tree, which has more sites of gummosis.
This picture above is the graft union. Earlier this year I noticed that the graft union had some “skin-peeling.” I’m not sure of the reason. Both tree trunks are protected by wire fencing so rabbit can’t chew on it. On this picture you can see two sites showing gummosis, one on the left one on the right. Further to the right and above you can see the peeling of the bark that dates back to this winter/spring time.
These two pictures above show the other two sites of gummosis on the same nectarine tree. They are both on the trunk of the tree.
Finally, these two pictures above show some cracking of the bark on the trunk of the nectarine tree.
So far I have only spotted some ants going up and down the trunk. I do not know what caused these cracks and why the sap is flowing out.
Thanks in advance!