Howdy. Have this bid I'm trying to help a friend with. Any and all inputs would be most welcome. Thanks ahead of time spraying 4.1 acres soil sterilant on gravel parking lot, dam road and 2 narrow, but long area's of smaller riprap 29 acres of riprap spot spraying. They don't want anything growing, but no sterilant 21 acres gopher control with plowing bait in with a tractor and burrow builder machine 76 acres mowing total March through Sept 21 acres which is pretty darn steep, as it's the backside of a dam and fairly flush growth 55 acres mostly flat and not that great of growth needs to be kept 6-12"