Answered for Danville, Hendricks County (county seat) County.
Confirmed in Indiana and spreading, though not yet the everyday problem it is further east. Worth reporting a sighting to the state rather than just treating it. 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. Damages rather than kills most trees, but the honeydew and mould make a yard unusable.
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.
Grey egg masses that look like smeared mud, sticky honeydew and black sooty mould underneath the tree.
Damages rather than kills most trees, but the honeydew and mould make a yard unusable.
Scrape egg masses in winter; treat nymphs in spring.
240 Old North Salem Rd, Danville, IN 46122
“Paul is high energy and an expert in his field. When I first reached out for a quote, he was responsive and came over to assess the work the same…”
James Gillespie · 12 months ago · Google
1078 IN-236, Danville, IN 46122
“These guys saved our bacon! Our job was complicated to put it mildly, and an emergency. We had a tree stump growing around an actively leaking water…”
Jacob Sharp · a year ago · Google
1502 S County Rd 525 W, Danville, IN 46122
“A great family business. Steven and son Steve did a fantastic job removing a large dead tree that was in a tight spot between our back fence and kids…”
Vaughn R Allen · a year ago · Google
4883 Gibbs Rd, Plainfield, IN 46168
“If you’re looking for a reliable and efficient tree service, Sharper Image Tree Service truly stands out. From the moment I reached out, their team…”
Sammy Smith · 4 months ago · Google
278 N East St, Plainfield, IN 46168
“I had an excellent experience with Olivos Tree Services Plus Landscaping LLC! They cleared several trees in my backyard that were close to power…”
Alyssa Wiegand · 5 months ago · Google
7701 S County Rd 375 E, Mooresville, IN 46158
“We used D&S twice now, and we love them. Owner comes out himself to do estimates, he's always on time, Friendly and informative. Then, before he…”
Jennifer Spencer · 2 years ago · Google
Distance measured from Danville.