Organic Grape Sprays?
Last year a lot of my grape clusters got black fungus and mildew on them and so I did not get very many good grapes. I am relatively new to this, and last year was really my first harvest. This year, I have quite a bit of clusters for red flame and some thompson seedless grapes and some are beginning to "blossom." I have heard that you need to spray the actual clusters with a fungicide to prevent fungus later on. Since I will be eating the grapes, I do not know what is safe to spray them with. I do not want to poison myself. However, I know how toxic fungal spores can be to injects, so I'm wondering what/if I should spray with that is safe for eating (eventually)? As a note, I usually practice completely organic gardening methods.
(I love on the coast of southern california so the weather is great for fungus).