The late spring frost could have started the problem which later spread with a disease of Oak Anthracnose (Gnomonia species), which causes the leaf curl.
The late spring frost could have started the problem which later spread with a disease of Oak Anthracnose (Gnomonia species), which causes the leaf curl. M. Grabowski, University of Minnesota
The late spring frost could have started the problem which later spread with a disease of Oak Anthracnose (Gnomonia species), which causes the leaf curl. M. Grabowski, University of Minnesota