I currently, spot treat for weeds with Surge, prior to fertilizing with a broadleaf weed control. I have a few questions for you vets, Should I waste the time and money to spot treat prior to fertilizing with a (trimec) broadleaf weed control? It seems like I get poor weed killing results from using the granular application alone. I have been using a back pack spray for most of my lawns under 15k, but this still takes ages if there are a lot of weeds present. Any recommendations here?? I also treat a few large business, so far only with the granular products.