I am in the middle of a weeding job for a client / friend. Right now I am using Round-up. Have used 8 gallons of mixture so far, and have only done the bulk of the 2 large beds. I would say that I have got MAYBE 1/4 of the work done as far as weeding goes at this place. My problem is that I will be spraying with my backpack sprayer, and I can't get close to the shrubs for fear of doing damage. Another problem I am having is that I will be going along spraying a bunch of weeds, and then "oops, there goes a hosta" or "ooops, there goes a mum" For the most part what I am spraying is maple seedlings. Any thoughts on what I can use?