Answered for Danville, Hendricks County (county seat) County.
Common wherever red cedar has colonised a fence line near apples — which in rural Hendricks and Boone counties is nearly everywhere. In Danville, the Main Street Historic District developed circa 1844–1920 across just 9 acres and 37 contributing buildings, and the Courthouse Square district circa 1865–1960 over 70 acres — those blocks hold the town's oldest and largest trees on narrow lots with sidewalks on both sides. Danville does actively manage its right-of-way canopy through a standing Tree Advisory Committee, though the specific inventory and replanting-ratio requirements attributed to Chapter 97 could not be verified. Disfiguring rather than deadly.
Danville's canopy and what's at risk
The Main Street Historic District developed circa 1844–1920 across just 9 acres and 37 contributing buildings, and the Courthouse Square district circa 1865–1960 over 70 acres — those blocks hold the town's oldest and largest trees on narrow lots with sidewalks on both sides. Danville does actively manage its right-of-way canopy through a standing Tree Advisory Committee, though the specific inventory and replanting-ratio requirements attributed to Chapter 97 could not be verified.
What to look for
Orange gelatinous horns on cedar in spring; orange spots on apple and crabapple leaves.
Whether the tree can be saved
Disfiguring rather than deadly. It matters most to orchards and to anyone who wants a clean crabapple.
Timing in Hendricks County (county seat) County
Fungicide on the apple side at bud break, or remove the cedars within a few hundred feet.
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