Shag Bark Hickory Leaves Are Dropping In Mid-May

Question From: A. Smith - Williamsport, Indiana, United States
Q: Our shag bark hickories are losing leaves. The tips turn blackish brown and then fall off. Even some of the green healthy looking leaves are falling off. This is happening in mid May in west central Indiana. Any ideas? Thank-you!

A: Sounds like some sort of fungal disease. If it were my tree I would get an onsite inspection from a certified arborist for an accurate ID and effective control. To find one in your area go Best And Happy Yardening, Nancy