I noticed this morning that a couple of the au etchings were looking a bit soggy........ Actually - quite a few flowers were looking brown and mushy. I have sprayed some Bordeaux mixture on all the plants but I'm not sure how much I need to cover them. Needless to say it's left an unattractive blue residue.
Any suggestions as to how I can spray this to be as effective as possible? Never dome this before......