Ginkgo leaf curling under
Hi, My Ginkgo tree leaves (all of them) are yellow on the edges (1/4 inch) and they are curling under. They are not shaping up properly. It was planted about 4 years ago in my yard near the street, in full sun (?!) by the city of East Lansing. Never had this problem before. Any remedies? It is June 20, 2019. I noticed this 3 weeks ago.
Ingham County Michigan
Please send a photo of the leaves. There are several possibilities, such as herbicide drift, or freeze injury to name a couple. But a photo would be very helpful.