Spraying in the vineyards behind our house. We steer clear of the "fog" when walking out there. I used a telephoto lens for this shot.
I'm not sure, but I don't think that other pesticides are used out there, aside from herbicidal treatments to keep the weeds down. Many growers rely on herbicides, but some of the growers around us are "organic" and don't use herbicides at all. They plow and sometimes mow between rows of grape vines to control weeds. I'm sure there are books full of regulations concerning what growers can and can't do in the vineyard and when.