Healthy turfgrass is a great start for controlling weeds in your lawn. We strongly suggest that the homeowner continue a pattern of applying pre-emergent spray that we start when the sod was still at the farm. This helps keep the yard weed-free if a good program is continued. Every lawn has different soils, turf, and weed problems. All of these factors must be considered when attempting to control weeds. That is why our number one recommendation for controlling weeds is to hire a professional lawn care service. Whether you choose to do it yourself or hire a pro, the next few paragraphs will increase your knowledge of weed control.
Weed identification is the first step in a successful weed control program. If you are unable to identify the weed (or weeds); the local Extension office, lawn, and garden center, or lawn care service can provide the necessary information. Once problem weeds have been identified, it is then important to select the correct herbicide.
The product label is the best source of information as to which grass can be treated with that particular product. Some products contain more than one herbicide. Read the product label carefully to ensure safety and that the product will work on your particular type of grass. Follow the directions exactly. Also, each label should recommend the best way to apply the product.
Weed Control Terms
Applied to a lawn grass surface before problem weeds germinate and emerge. Must be applied before a problem develops. If not, preemergence herbicides are usually ineffective away from any sprinkler, but all within the area you assume is being covered.
Applied after weeds have emerged, but while small and actively growing. Applied to the leaf and stem tissue of weeds. Generally, postemergence herbicides will not control weeds that germinate and emerge after the application.
A herbicide that kills all vegetation treated. Typically applied to the foliage of the weeds. This type of herbicide will also severely injure or kill desirable plants. A popular non-selective herbicide is Roundup.