Tree sap is the sticky substance you sometimes see oozing out of tree trunks. Pure maple syrup is the most widely known edible sap product, derived from the sap of the maple tree, but there are many ...

Unless you are intent on making your own maple syrup, you probably haven't given tree sap much thought. So, let's take a deeper dive into a tree's 'blood' or sap and the normal flow in the fall for ...

Q: I recently purchased a home with several mature navel orange trees. One of the trees has about half the bark missing from the trunk and sort of circular looking lesions that ooze sap in the area ...