Answered for Greenwood, Johnson County.
Still active. It's why mature American elms are rare here now, and why the ones that survive are worth protecting. In Greenwood, two separate canopies in one city. The pre-1960 blocks around Old Town and near County Line Road hold Greenwood's only genuinely mature shade trees — just 9% of the housing stock predates 1960 — while the subdivisions east of I-65 are 2000s-era plantings still small enough to prune off a ladder. Ash is functionally gone: emerald ash borer has been confirmed in Indiana since April 2004 and is now in all 92 counties. A rapid one-season decline usually means removal.
Two separate canopies in one city. The pre-1960 blocks around Old Town and near County Line Road hold Greenwood's only genuinely mature shade trees — just 9% of the housing stock predates 1960 — while the subdivisions east of I-65 are 2000s-era plantings still small enough to prune off a ladder. Ash is functionally gone: emerald ash borer has been confirmed in Indiana since April 2004 and is now in all 92 counties.
Flagging — one branch yellows and wilts while the rest looks fine — then rapid decline through the crown.
A rapid one-season decline usually means removal. Fungicide injection can protect a high-value elm that isn't yet infected, but it does not rescue one that is well along.
Preventive injection every two to three years, before symptoms.
1251 U.S. Hwy 31 N, Greenwood, IN 46142
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325 E Banta Rd, Indianapolis, IN 46227
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5741 Gallagher Dr, Greenwood, IN 46142
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Distance measured from Greenwood.