How do I control lawn water-pennywort (Hydrocotyle sibthorpioides) in a home lawn in Spotsylvania County Virginia?
Recommendation: The waxy leaves of pennywort make it difficult to control with selective herbicides. Spray type products are more effective than granular. Repeated treatment (treat at weekly intervals until weed dies, or follow label) of products that contain the following active ingredients are effective in cool-season or warm-season types of turfgrass: 2,4-D, dicamba, MCPP, MCPA, triclopyr, and quinclorac. Metsulfuron can be used in warm-season turfgrass and Kentucky bluegrass. Imazaquin, metribuzin, simazine and/or atrazine can be used in warm-season turfgrass. Expect to apply several treatments to completely kill this weed. Always read and follow instructions on pesticide labels.