Answered for Greenfield, Hancock County.
It has already moved through Indiana and killed the overwhelming majority of untreated ash. An untreated ash here is on a clock, not at risk. In Greenfield, greenfield was not one of the 23 communities in the Indiana DNR street tree sample, so there is no published species breakdown — the honest picture is a two-tier canopy: mature shade trees dating to the historic district's roughly 1880-1947 build-out over those streets and Riley Park, versus small suburban stock in the newer additions. Statewide, Indiana street tree populations run about 18% silver maple and 34% maple overall; Callery pear is common in 1990s-2000s plantings and as of 2026 is still legal to sell in Indiana, with the amendment that would add it to the Terrestrial Plant Rule pending since 2021 — re-check IDNR before advising a customer. Treatable while the canopy is still mostly intact.
Greenfield was not one of the 23 communities in the Indiana DNR street tree sample, so there is no published species breakdown — the honest picture is a two-tier canopy: mature shade trees dating to the historic district's roughly 1880-1947 build-out over those streets and Riley Park, versus small suburban stock in the newer additions. Statewide, Indiana street tree populations run about 18% silver maple and 34% maple overall; Callery pear is common in 1990s-2000s plantings and as of 2026 is still legal to sell in Indiana, with the amendment that would add it to the Terrestrial Plant Rule pending since 2021 — re-check IDNR before advising a customer.
Thinning from the top down, D-shaped exit holes about an eighth of an inch across, sprouts low on the trunk, and pale flecking where woodpeckers have stripped bark to get at larvae.
Treatable while the canopy is still mostly intact. Once roughly a third of it is gone, treatment stops being worth the money and the tree becomes a removal — and a dead ash goes brittle unusually fast, which makes it both more dangerous and more expensive the longer it stands.
Trunk injection in spring or early summer, repeated every one to two years for the life of the tree. It is a permanent commitment, not a cure.
1744 Sugar Creek Trail, Greenfield, IN 46140
“We were so grateful for Gaddie’s Tree Service. They are fabulous!!!! We had to wait do bad rainy weather, but once Gaddie’s got here they took care…”
BJ Cheesman · a year ago · Google
2067 Sunshine Dr, Greenfield, IN 46140
“We had a few things updated/upgraded on our property and cannot say enough good things about Doctor Tree & Landscape Specialists. They are truly…”
Brian Cross · a year ago · Google
5067 W US Hwy 40, Greenfield, IN 46140
“This company is very courteous and friendly. They are prompt and fast at what they do. I had three large silver lead maples trimmed, seven dead ash…”
Zach Bailey · 7 years ago · Google
52 525W, Greenfield, IN 46140
“Had a tree fall on my home, my mother knew one of the employees (Conner) he got in touch with Scott who came from near Indy all the way to Fort Wayne…”
Jacquelin Clark · 4 years ago · Google
646 S 600 W Building #5, New Palestine, IN 46163
“This is the second time we have hired Holmes for tree work at our home. A few years ago they removed a tree that was too close to our home and did an…”
Jennifer Kost-Barker · 2 months ago · Google
4621 S Brooklawn Dr, New Palestine, IN 46163
“I was fortunate to have Shawn Miller replace a large three in one window in my residence. He was extremely thorough removing the exterior cement…”
Ric Vega · 5 years ago · Google
Distance measured from Greenfield.