How Do You Kill Weeds in St. Augustine Grass?

Are you wondering how to kill weeds in St. Augustine grass? Strong turf – the health of your grass and soil – is actually itself the best defense against weeds. Hand-pull weeds as possible to maintain that health. However, the limited use of herbicides (selective ones for pre- and post-emergence) helps keep your lawn your own. Also be careful not to over-water: excess water is the #1 cause of broadleaf weeds!