When Does Hackberry Sap Stop in Fall?

Timing Your Cleanup: Hackberry Sap and Aphids

The sticky “sap” on your hackberry is actually honeydew from aphids. It stops when the tree goes dormant—generally when leaves fall. In most regions, that’s late autumn. Wait until leaf drop to hire cleaning for your roof, deck, and driveway.

Prevent Next Year’s Mess

Apply Bayer Advanced Tree and Shrub Insect Control to the soil next spring. This systemic kills aphids all season, eliminating the honeydew drip. Available at garden centers.