We have what looks like sap oozing out of the joints in several spots on our peach tree. What do we do and why do we have this?
Limb Joints Oozing on Peach Tree
Certified GKH Gardening Expert
What you are seeing is gummosis – it is a gum/sap that oozes in response to injury, whether by insects (such as the peach tree borer), mechanical injury (such as by poor pruning - did you prune your tree recently?), winter damage, or virus/disease.
Below are links that will assist you in diagnosing your tree.
(Cornell Univeristy PDF – cankers on trees): https://bit.ly/1E6AIAN
(Peach Tree Borers) https://www.gardeningknowhow.com/edible/fruits/peach/peach-tree-borer.htm