University of Maryland Extension

Carpetweed

(More lawn weeds)  (Control Options)  (General Weed Gallery)

carpetweed close-up

low-growing carpetweed
Photos: Carpetweed, Mollugo verticillata

General description

Carpetweed is a summer annual broadleaf weed that spreads by seed. Seeds begin to germinate as soils begin to warm in early spring and continue to germinate throughout the growing season. The weed is low growing and forms a circular mat of growth. Produces small white flowers at the leaf axils in mid-to-late summer. Has smooth leaves that are light green in color.

Management

Cultural control: Maintain healthy, dense turf that can compete and prevent weed establishment.
Mechanical control: Hand pulling or using an appropriate weeding tool are the primary means of mechanical weed control in lawns. This is a viable option at the beginning of an infestation and on young weeds. Hand pulling when the soil is moist makes the task easier. Weeds with tap roots like dandelions or have a basal rosette (leaves clustered close to the ground) like plantain are easier to pull than weeds such as Bermudagrass (wiregrass) or creeping Charlie (ground ivy) that spread with stolons or creeping stems that root along the ground.
General chemical control: Spot treat weeds with a liquid, selective, postemergent, broadleaf weed killer applied when weeds are actively growing. Look for a product with one or more of the following active ingredients:
2, 4-DMCPP (mecoprop), Dicamba* or Triclopyr. 

*Do not spray herbicides containing dicamba over the root zone of trees and shrubs. Roots can absorb the product possibly causing plant damage. Read the product label for precautions. 

Organic control

For a glossary of herbicide terms and additional information see: control options     

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