Dealing with weeds
Ways to manage weeds in your yard
The best way to deal with weeds is to hire a professional lawn care firm to treat your yard on a regular basis. They will have the necessary applicator permits to use the various herbicides required for your lawn type and weed type. Note that your lawn my need additional care for insects, fungi protection, and other ailments that impact your turf.
But, you can be a Do It Yourself lawn care person if you so desire. Put in the time to learn and identify the various common weeds for lawns in your geographical area. Learn to read product labels to know if the product is safe for your grass variety and effective on your weed. Be very careful that you do not use a non-selective herbicide for weed control. Some herbicides will kill everything they contact so avoid those if you want selective weed control.
Learn the difference between pre-emergent and post-emergent herbicides and when to apply each. Most southern lawns need a spring and fall pre-emergent application to control both warm season and cool season weed varieties.
Use a good phone app or website to learn to identify weeds that you are encountering in your lawn.