I put down Scott’s pre emergent and Scott’s weed and feed post emergent, but I’m having some major weed issues. Dandelions and what I believe is rescue grass have not been killed. I would like to put down a liquid post emergent. My yard is over a half acre so I’ll need something with a dial type sprayer. Does anyone have any recommendations on a specific product? My yard is Bermuda that is just coming out of dormancy.