I had some serious weed problems in the early spring, and they came and sprayed frequently. The weeds are now gone but I now have brown spots where the grass was killed as well. I talked to the technician when he was here and asked him about the brown spots and also a weed which seemed to be prevalent near the side walk. He agreed they should probably not be there, but he was new and did not know what to do so he executed face time with his supervisor. I went back into the house and he drove away, without letting me know what, if anything should be done. He was here just to spread the mix, and nothing else.