Hey guys. Looking for a good pesticide sprayer. About a 50 gallon to spray a heck of alot of kudzu. Also, a couple friends of mine say to use Round-up Pro. Although it will probably come back. Is there a better chemical. This is a resort area that is covered up with established kudzu. (Western NC) A have been working there for about four years and they have been sparying it with 1 1/2 gallon spot sprayers. (hopeless) I have been telling them to let someone licensed spray it... like me. Well, they gave in. I have a 15 gallon DC sprayer but I think I need a bigger one. Also, my chemical dealer said to use Valpar. Never heard of it or used it and he doesn't know anything about it either. Just looking for a little help in this.