Problem: Spotted Spurge (Lawns)
Euphorbia maculata Spotted spurge, also called milk purslane or prostrate spurge, invades thin areas of the lawn, smothering the grass. Spurge sprouts from seeds in the spring and dies with the first frost. This weed commonly invades lawns that are dry and infertile, but it can also be found in well-maintained lawns.
Keep the lawn well watered to discourage spurge from invading dry areas.