Pin Oak Decline in Heavy Clay with Record Rainfall

Two 2-year-old pin oaks in North Alabama show problems: one with dying branches with deep splits, the other with dying limb tips and soft hanging ends. Record rainfall for 1.5 years on heavy clay soil.

Assessment

Waterlogged clay soil likely causes root suffocation and decline. Examine trunks for loose bark or damage. The splits may be frost cracks exacerbated by wet-dry cycles.

Action

Contact county agricultural extension for home visit. Improve drainage if possible. Avoid planting in poorly drained clay without amendments. Young trees are especially vulnerable to waterlogging.