As long as downy mildew remains on the leaves, it is dangerous, but can still be contained

Once it reaches the bunches, however, it is all over. Downy mildew attacks on bunches have been widespread across Gironde for the past few days, among conventional and organic growers alike. June is going to be a long month. We need to hold out until veraison. Downy mildew will then no longer be able to cause any damage.