That is a very good point... But it does turn our attention back to the idea of the right plant in the right place... Around here, Junegrass, will completely dominate wild areas, that are eaten off as pasture or mowed as lawn... This is a cousin of KBG brought in from Europe that has really choked out everything as far as weeds are concerned... I've done pretty good in the landscapes as far as eliminating CG, but we've had some broadleaf concerns... minimal yet they do exist... yet over time they are negligible... The basic question is: Has anyone been able to grow turf with minimal inputs???