Rock Falls is continuing its community response to the Emerald Ash Borer, an invasive insect threatening local ash trees. City crews are working to protect the community’s ash tree canopy through monitoring, treatment, and removal efforts where needed. Residents are encouraged to watch for signs of infestation, including thinning leaves, bark splitting, and small D-shaped exit holes in tree trunks.
The city says early detection remains one of the best tools for slowing the spread and preserving healthy trees. Property owners with ash trees may want to consult local forestry officials or certified arborists for guidance.