Is my northern red oak dying or just stressed?

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. That context matters for northern red oak: northern red oak is the big shade tree most central indiana properties inherited from the woodlot their subdivision was cut out of, and it is the species where the calendar matters more than the cut — indiana sits squarely in oak wilt territory and red oak is in the highly susceptible red/black oak group. Removing a northern red oak around Greenfield runs roughly $400–$1,900, and in Greenfield Residential Historic District, Brandywine Village and Fieldstone access is usually what decides where in that range you land.