
A genuinely declining ginkgo is rare and the cause is almost always mechanical: a girdling root, a root flare buried under builder fill, or trunk damage from a mower or string trimmer. Stress reads as short annual shoot extension and small pale leaves; if the tree leafs out fully and goes gold in November, it is not dying no matter how sparse it looked in July.
Ginkgo is about as close to a maintenance-free large shade tree as central Indiana gets — it shrugs off compacted clay, road salt, alkaline builder fill and narrow tree lawns, and it carries essentially no pest or disease list. So when a ginkgo generates a phone call, the problem is almost never the tree's health; it's fruit, an uncorrected fork, or a tree planted somewhere it will outgrow.