Q.st augustine grass
I just bought a home in south Florida. The lawn is pretty patchy. More weeds than St Augustine. What is the best way to get rid of the weeds and fill in with thick St Augustine?

Certified GKH Gardening Expert
You can use a post-emergent herbicide to kill as many weeds as possible, then overseed with grass. First determine if the patchiness is due to disease. You may want to consult your local Extension agent for help determining which disease. Here's information on lawn disease, overseeding, and St. Augustine grass:
https://www.gardeningknowhow.com/lawn-care/lgen/treating-lawn-diseases.htm
https://www.gardeningknowhow.com/lawn-care/lgen/overseeding-information.htm
https://www.gardeningknowhow.com/lawn-care/specific/st-augustine-grass/st-augustine-grass.htm