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'm dumbfounded that there was enough weedkiller residue left in
there to do this. Hopefully, they'll recover. So, I pass my experience
along. A word to the wise.
Ken