Maintaining a dense, vigorous lawn is essential to prevent lawn weeds. Good cultural practices account for 60 to 70 percent of turfgrass weed control. Herbicides should be considered a supplement, not a stand-alone weed control practice. If herbicide use is not accompanied by proper cultural practices, the weed problem will return because the deficiency which led to the weed invasion has not been corrected. When herbicides alone are used, the symptoms, not the cause, of a weedy lawn are being treated.
Weeds bother some people more than others.
Step back and take a look. If the lawn looks good from the street, do not waste your time going after those last few weeds. Excess herbicide use designed to eliminate a few stubborn weeds does more harm than good. A 100 percent weed-free lawn is not practical. Using herbicides to control weeds in a home lawn is more complicated than it would appear at first glance.