Is an austrian pine common in central Indiana?
Extremely common across central Indiana as 1960s-80s screen, windbreak, and highway planting, which means entire cohorts are now at exactly the age where Diplodia has hollowed out their lower crowns. Since it is no longer recommended for planting, nearly every job on one is a removal-and-replace conversation.
Why that matters for tree work
Morton Arboretum lists Austrian pine as a Problem Plant and states plainly that it is not recommended for planting anywhere in the Midwest. A 15-year ISA study of landscape Austrian pines found Diplodia tip blight killed 84 percent of them and that trunk-injected fungicides made no significant difference, which is why the honest answer to "my pine is browning from the bottom" is usually removal and replacement rather than a treatment program.
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