My flowering cherry is showing signs of a disease on its leaves at the ends of branches that I can't identify. There are elongated red/pink galls along the leaf edges and sometimes randomly along leaf veins. It looks like a version of peach tree leaf curl, but it's a cherry. Plus it is making small feathery green leaf-like growths at the area where the leaves connect to the branches (looks like frisée). Does anyone know what this is or how to treat it?