Finally, I had a time to update a list of fungicides for home garden grape production. This updated list contains name of fungicide products that you can purchase from home garden centers or online stores. (By the way, I am surprised that you can purchase fungicides from Amazon...) It also contains a table of efficacy against common grape diseases.
I have noticed that there are so many variations of the products, so, I listed only a few. The other thing I noticed was that in many cases, the companies pre-mix other pesticides, such as an insecticide that you may not need. Please make sure to read the label carefully. Your label should have grape listed as a target host, if not, there may a reason behind it.
Note: The list has been updated once again on 6/26/12