>
> I emptied my 12 volt sprayer of broadleaf weedkiller, then put in
> Mancozeb. I
> sprayed on the ground until I was sure the yellow Manc was coming out,
> then
> proceeded to spray my grape vines. Damned if the first vine or two didn't
> get damaged.

I was told to always have two sprayers, one for herbicides and one for
pesticides/fertilizers, because it's difficult to completely rinse the
herbicide residue. Using pump garden sprayers, it's not too expensive
to have two.

Andy