Oaks Dripping Sap
We have alot of sap dripping from our oak trees all of a
sudden, can you tell me why?
The following indicates the sap might be from insects feeding upon the tree:
and recommends using a forceful stream of water from a hose to dislodge
Anthony Brach Ph.D.
You may have sucking insects such as aphids or mites feeding on the
leaves. If the sap is coming from the branches, you might have wood
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Update: June 2012