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Published August 05, 2011, 12:00 AM

Hortiscope: Infestation likely cause of trees’ oozing sap

Q: I have two huge cottonwood trees. This spring, they began oozing sap. It started with just a fine sort of spray covering everything within a 100-foot radius or so. Now it is coming down in full-sized droplets!

By: Don Kinzler, INFORUM

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