re: Do I need to Weed & Feed my yard?

I spoke with the local LSU Ag extension office about a brown patch issue I was having and he told be some things to do. He said Bonus S was a waste of money. I didn't use it this year and just fertalized with triple 13. Because of the large amount of deadened area due to the brown patch, I'm left with some undesirable weeds growing. The grass is catching up, but I've never had this problem in the past. I will always use Bonus S in the future as I've never had this problem before. Only thing I have an issue with and can't get rid of is Dallis Grass.