I am looking for recommendations on a good cool weather weed control producct for the midwest. Temps here have been in the 60's and 70's during the day and upper 40's lower 50's at night. I have been told that I should look at Cool Power by Riverdale / Nufarm. What other products should I look at? A friend of mine may have found me a couple of comercial jobs that have been overrun by weeds. I have not been out to the property so I do not know how bad it is. But he said that the property needs a lot of work on its lawn starting with the weeds. Any suggestions would be appreciated. Almost forgot this chem will be run through my Perma Green.