Sap

Sap

Observation - Sap. Description: A fallen sycamore with two side branches which have become dual trunks. Each has rows of holes all the way around, some fresh,some scarred. Sap is leaking out of the holes. Any ideas on what has caused this?

A fallen sycamore with two side branches which have become dual trunks.
Each has rows of holes all the way around, some fresh,some scarred. Sap is leaking out of the holes.
Any ideas on what has caused this?