
It presents as off-color first — pale to yellow-green next to a healthy neighbor — then progressively shorter needles, shorter annual twig extension, and wrinkled bark on the branches before anything browns. Stress versus dying: a tree that yellows and greens back up in a wet year is stressed, but once annual candle growth is down to a couple of inches, needle retention has dropped to the current year only, and branch bark has shriveled, it is finished.
It gets planted constantly here and the soil does not want it — Purdue documents "white pine decline" specifically as an Indiana clay-soil disorder, where trees look fine for fifteen or twenty years and then quit. Most white pine calls are either that slow unexplained fade or a storm-broken top.