Sap Oozing at Base of Tree
There is sap oozing at the base of my tree. Could be caused by insects? What can be done? The tree is about 20 feet tall with large leaves in summer.
Certified GKH Gardening Expert
What kind of tree is it? It might be insects or it might be root gall. It could also be due to temperature fluctuations. This all depends on the type of tree. Knowing the variety of tree would allow us to give better advice on the cause and how to treat it.