The answer to 'how does weed control work' is that effective weed control involves a combination of prevention, identification, and targeted treatment methods. The goal is to stop weeds from growing and spreading in the first place, while also addressing any existing weed problems.
Preventative measures include maintaining a healthy, dense lawn or garden that leaves little room for weeds to take hold. This involves proper mowing, watering, and fertilization practices. Identifying the specific weeds in your landscape is also key, as different weeds require different control methods. Once weeds are identified, you can use a variety of treatment options such as hand-pulling, mulching, or applying selective herbicides to target and eliminate them.