Problem: Crabgrass (Lawns)
Crabgrass sprouts from seeds in the early spring, growing rapidly and producing seeds all summer until the first killing frost in the fall. Then the plants turn brown and die. The seeds lie dormant over the winter and sprout in the spring. Crabgrass is one of the most common lawn weeds in its area of adaptation. When a lawn begins to thin out from insects, disease, or poor maintenance, crabgrass is one of the first weeds to invade the area.
Crabgrass is not usually a serious problem in a thick, healthy lawn; follow recommended lawn care practices for a vigorous lawn.