Every July, reliably. Linden and crabapple get hit hardest here. 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. Ugly, rarely fatal to an established tree.
Greenfield's canopy and what's at risk
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.
What to look for
Leaves skeletonised to lace, worst at the top of the tree, through July.
Whether the tree can be saved
Ugly, rarely fatal to an established tree. A mature linden can lose most of its leaves in July and be fine the following spring.
Timing in Hancock County
Treatment is a July problem, and hanging beetle traps near the tree makes it worse — they attract more beetles than they catch.
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