Hi all, this is our first year doing lawn care, (check my post in "Tell your story" for background information) and we have had several of our customers asking us do we spray to kill weeds, dendelions and ect. I am under the impression that you have to have licenses to do this type of work, and I just feel like I am losing out on alot of money!! My brother works for Trugreen out of greenville and that's all they do is Spray poisons, and he said that they make a ton of money off of that stuff. Any advice? What kind of Poison? How do you go about getting licenses to spray this stuff? Any information would be very helpful, thanks!!