I need help here guys. I've got 5 acres of weeds, and up close to the house I've got St. "A" plugs growing in different sized and shaped patches, along with with Zenith zoysia in another patch out back. I have alot of weeds that have materialized, intermixed amongst my St. "A" transplants. I have some Trimec Southern I wanna try on it. Obviously, removing the crap will let the St. "A" spread unimpeded in the full sun I have here. Now, the part where I'm stupid, that you've been waiting for. I have a 26 gallon tank sprayer in the back of the 4 wheeler, and an ortho hose end sprayer. 1)The ortho says ever how many "ounces per 100 gallons". I would like to spray some of that "Roots Fe 8%" thru that. The book talks of an "ounce per 1,000 ft". 2)The Trimec says mix 1/3 oz. to 1/2 oz. per 1,000 ft. I was gonna use the tank sprayer and shoot the patches of plugs. Some areas of St. "A" are getting pretty sizeable. Now, will somebody please tell me how in the hell to convert these measurements? What in the heck setting do I use on the ortho to shoot the iron, when the sprayer talks in 100 gallons, and the chemical speaks of feet? For the Trimec in the tank sprayer, how many gallons of water do I mix with how much Trimec. I want to error on the side of caution(weak mixture) obviously, but I haven't a clue what setting or what mixture. It's not practical at all to figure out the squ.feet of oddball sized plugs in the ground. Anybody been there, done that, and care to enlighten an obvious idiot. Oh yeah, while I'm at it. Is there an easy way to determine which "brand" of St. "A" I have? I've looked at the pics online, and can't tell differentiate between them. My plugs have been handed down thru the family, which we got from a neighbor 35 years ago. The Trimec says don't use on Floratim at all. Duh! Please help straighten out a dumbass. Thanks.