Confirmed in Indiana and spreading, though not yet the everyday problem it is further east. Worth reporting a sighting to the state rather than just treating it. In Speedway, no public street-tree inventory has been published for Speedway, so species counts are UNVERIFIED. Because the residential core finished building out by the mid-1950s and has barely been rebuilt since, much of the yard canopy is likely of comparable age and large enough to close over narrow streets and 40-to-50-foot lots — an inference from build-out dates, not a measured finding. The exception is Main Street, where a town streetscape reconstruction installed all-new landscaping, so those trees are recent. Damages rather than kills most trees, but the honeydew and mould make a yard unusable.
Speedway's canopy and what's at risk
No public street-tree inventory has been published for Speedway, so species counts are UNVERIFIED. Because the residential core finished building out by the mid-1950s and has barely been rebuilt since, much of the yard canopy is likely of comparable age and large enough to close over narrow streets and 40-to-50-foot lots — an inference from build-out dates, not a measured finding. The exception is Main Street, where a town streetscape reconstruction installed all-new landscaping, so those trees are recent.
What to look for
Grey egg masses that look like smeared mud, sticky honeydew and black sooty mould underneath the tree.
Whether the tree can be saved
Damages rather than kills most trees, but the honeydew and mould make a yard unusable.
Timing in Marion County
Scrape egg masses in winter; treat nymphs in spring.
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