Answered for Zionsville, Boone 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 Zionsville, zionsville has genuinely inherited canopy, not just planted stock: Austin Oaks, off Willow Road, was built on wooded lots, so mature native trees stand over the houses rather than replacing them, and the Village core's narrow streets carry mature oak and maple. Along the Eagle Creek corridor — including the 215-acre Carpenter Nature Preserve — the mix runs to oak, maple and sycamore, with standing dead ash still coming out; the town holds Tree City USA status and plants street trees annually. Damages rather than kills most trees, but the honeydew and mould make a yard unusable.
Zionsville has genuinely inherited canopy, not just planted stock: Austin Oaks, off Willow Road, was built on wooded lots, so mature native trees stand over the houses rather than replacing them, and the Village core's narrow streets carry mature oak and maple. Along the Eagle Creek corridor — including the 215-acre Carpenter Nature Preserve — the mix runs to oak, maple and sycamore, with standing dead ash still coming out; the town holds Tree City USA status and plants street trees annually.
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.
5155 Old 106th St, Zionsville, IN 46077
“Damien was the arborist who looked at my 2 pin oaks for trimming. He was knowledgeable and assured me that their company does not use spikes on live…”
Martin Radtke · a year ago · Google
5360 W 84th St, Indianapolis, IN 46268
“They were really easy to work with. Listened to my priorities and long term goals of ensuring that 5 huge beautiful Evergreen trees stay that way…”
Rich Koopmann · 4 months ago · Google
10795 E 300 S, Zionsville, IN 46077
“Just got our new tree put in, the process from start to finish was great! When we first visited to pick out our tree, the gentleman (I think Matt? He…”
caleb warren · a year ago · Google
5340 W 79th St, Indianapolis, IN 46268
“Evergreen Landscaping of Indiana has been hands down the best lawn care and landscaping company I’ve used. From weekly lawn mowing to full…”
Info Eagle arborist · 6 months ago · Google
4404 W 72nd St, Indianapolis, IN 46268
“Posting publicly across Google ® From: Collins- in the heart Indy.. Meridian Kessler and the Butler Tarkington area 5+ 🌟 rating I was a bit concerned…”
Donna Collins · 4 months ago · Google
6565 Coffman Rd Bldg D, Indianapolis, IN 46268
“I was thoroughly impressed with the BR Tree Service team that came out recently, braving the harsh cold (though thankfully it was sunny) to trim my…”
Shannon Rogers · 6 months ago · Google
Distance measured from Zionsville.