Centipede grass requires less fertilizer than most warm-season grasses, and it can withstand acidic soil. St. Augustine grass is a slow-growing variety type of grass that has wide, coarse leaves ...

A The weed in question is dichondra. You can use a three-way herbicide with 2,4-D, dicamba and MCPP, but read the label to make sure it can be used on centipede grass.