Ok heres the deal.....I get the booklet and I see that almost all the grasses and weeds that need to be killed take a 2%. So I go back in the book and find that 2% is just a little over 2oz. per gallon of water. We sprayed almost 10 gallons of roundup Pro in the next few days. And the stuff worked great. But I have more to do so I get 10 more gallons. Now my boss is telling me that I'm using way too much and that I should only be using about 1/2oz. per gallon of water. I tryed to show him the stuff in the booklet but he says that at 1/2oz. will work just as fine but will take a few more days to work. Now what I don't want to do is have some guy spend 12-14 hours spraying only to find out that it didn't work. Can any of you give me some ideas on how to go about this. And if the 1/2oz will work.