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Treat lawn now to prevent late-winter and early spring broadleaf weeds.
If you're trying to keep your lawn weed-free, flowering chickweed is not something you want to see.
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Broadleaf weeds can be controlled by a number of herbicides available to homeowners. Look for products that contain combination of two or more of these active ingredients: 2,4-D, 2,4-DP, dicamba, MCPP, MCPA, quinclorac, triclopyr, carfentrazone, sulfentrazone, and penoxsulam. (Penoxsulam is found in granular products only.)
There are well over 100 consumer broadleaf herbicide products registered in Virginia. Just use the active ingredients list when shopping. Read the herbicide label carefully to ensure a particular product is safe and to determine the timing between seeding and application of the product.
Herbicides are only part of the weed control answer. Maintaining a healthy lawn is also key. Good healthy lawns will naturally control more weeds than we can combat with chemicals.
To foster healthy turf:
Maintain a soil pH of 6.2 to 6.8, with lime applications based on soil test results.
For cool season lawns follow a fall fertilization schedule to encourage root development. Applying two applications of 1 pound of nitrogen per 1,000 square feet is adequate for residential turf. Recycle clippings when you mow as this recycles nutrients and does not contribute to thatch buildup.
Mow your lawn frequently enough so you remove less than of the leaf. The proper height for mowing fescue, our most common cool season grass, is 2 to 3 inches.