Posted by Frances Knuth on June 02, 19100 at 15:04:19:
My hosta leaves are turning yellow around the edges at the tip of the leaf on either side then sort of curling up and turning grey. There are also light grey patches on some of the leaves and where this occurs the patches are almost transparent and very dry (no green color). Have checked for crown rot, cut worms and slugs. Does not seem to be the case. Noticed only that there are small flies around one or two of the hostas and a tiny black insect. Can someone help me?