How long can I leave there are mushrooms growing at the bottom of my tree before it becomes dangerous? (Martinsville, Indiana)

How long can I leave there are mushrooms growing…

A fruiting body is the reproductive organ of a fungus that has already been eating the inside of the tree for years. By the time anything shows on the outside, decay is established in the root plate or the butt of the stem — the exact structural zone that holds the tree upright. This is the one common finding where an outwardly healthy tree can come over whole, roots and all, in an ordinary thunderstorm. It is an anchorage question, not a branch question. In Martinsville — Northside Historic District, East Washington Street Historic District and Colonial Hills included, that's normally a hazardous tree removal job at $800–$5,000. Within weeks.

Why this comes up in Martinsville

The worst record of the three by a wide margin. On 20 September 2002 an F3 tore through Martinsville as part of the longest tornado track in Indiana history — 112 miles from Ellettsville past Indianapolis toward Hartford City — causing 28 injuries and $15.0 million in property damage in Morgan County, still the county's costliest tornado. On 31 March 2023 an EF2 struck near Martinsville Airport with $7.52 million in damage. And on 7 June 2008 Martinsville recorded 8.80 inches of rain; the White River flooding that followed was among Indiana's worst disasters, and the city is still working with the Army Corps of Engineers on a levee to protect its western edge. Earlier F3s hit the county on 10 March 1986 and 22 November 1992.

Martinsville's canopy

Genuinely over-mature in the old grid: the Northside Historic District developed circa 1850–1935 and the East Washington Street district circa 1869–1940, so those blocks carry trees well over a century old on shallow-setback lots where the crown sits directly above the roof and the sidewalk. The newer neighborhoods the comprehensive plan maps — Eagle Crest Estates, Southern Acres, Country View — are the opposite extreme, open ground with young stock. (Age is inferred from district survey dates; a species inventory was not available.)

Morgan County (county seat) County rules

No municipal tree-removal permit for private property could be located. Martinsville holds its own zoning jurisdiction (the Morgan County Unified Development Ordinance expressly excludes it), but the city's code is not published on the major code libraries, and neither the comprehensive plan nor the county ordinance imposes any permit to remove a tree in your own yard. What is regulated is development-stage landscaping and work in the city right-of-way. Homeowners should confirm right-of-way work with the city Planning Department before cutting, since the ordinance text could not be independently verified.

The tree lawn in Martinsville

The comprehensive plan describes it directly: in the historic grid, setbacks are shallow and there are grass plots between the public street and the sidewalk — a classic tree lawn within the city right-of-way. The plan also notes that areas developed later have no sidewalks and no street curbs at all, with houses set farther back, so in those neighbourhoods there is no tree lawn and the trees simply stand on private ground. Which era your street belongs to determines whether the city has any interest in the tree.

How long can I leave there are mushrooms growing at the bottom of my tree before it becomes dangerous?

Why this comes up in Martinsville

Martinsville's canopy

Morgan County (county seat) County rules

The tree lawn in Martinsville

Crews near Martinsville

Humble Hunt's Services, LLC

D & S Tree Service, LLC of Mooresville & Greencastle

Andy's Tree & Landscape

McDaniel’s Tree Service

Hair Cuts For Trees LLC

Jimmy's Tree Service

Same question, nearby towns

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