So I've got a really good customer of mine that we do regular lawn care for that decided that he would fertilize his St. Augustine himself...not sure why exactly. Anyways, he ended up putting the wrong fertilizer down and did this (see attached pictures) to his yard. He's a really good customer, so I'd love to help him out, but I don't know how to approach repairing something like this. Any ideas or suggestions? Help please!