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Because prostrate spurge grows from a small taproot it is easy to remove large plants by hand. Spurge will survive in harsh conditions where the turfgrass has long-since departed. Spurge must reproduce by seed from year-to-year. Encouraging turfgrass density in the fall and spring should be fairly effective for limiting the presence of spurge in turfed areas. Spurge is most likely to invade when spring conditions have opened the turf from drought or grub damage. Prostrate spurge is a late-germinating summer annual, ideally suited to fill-in voids in the turf during June, July and August.

Similar Species

Prostrate spurge and spotted spurge (Euphorbia supina, Euphorbia maculata) are accepted as the same species and are often referred to synonymously. Prostrate knotweed is found in many of the same dry habitats as spurge but does not produce latex from broken stems. Common purslane has thick fleshy stems and leaves. Spurge will form leaves along the entire stem, whereas purslane tends to forms leaves in clusters at the end of the branches.

Infestations of spotted spurge in newly planted lawns can be reduced by establishing turf in late summer or fall. In established lawns, spurge populations can be reduced by improving turf density through fertilization, regular mowing, and use of turfgrasses well-adapted to site conditions. This weed can be controlled with various postemergence herbicides, particularly those containing combinations of 2,4-D, dicamba, MCPP, and/or fluroxypyr. Some preemergence herbicides will control spotted spurge from seed but have no effect on emerged plants.

Prostrate Spurge - Turf (msu.edu)

Lawn and Turfgrass Weeds: Spotted Spurge - Chamaesyce Maculata L. (psu.edu)

Prostrate Spurge (A) (Euphorbia maculata) - family: Euphorbiaceae (Spurge) - MSU Turf Weeds.net - Weed identification and information. A resource guide from the Dept. of Crop and Soil Sciences at Michigan State University

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