Crabgrass

Crabgrass is a warm season, annual weedy grass. It germinates in spring, grows all summer long, and dies with the first frost. The seeds need both heat and light to germinate. The best defense against crabgrass (and its relatives) is a dense stand of healthy turf. If the weed seeds cannot reach bare, sunlit soil, they will not sprout. Where crabgrass was a problem last year, treat with a pre-emergent herbicide formulated to control crabgrass in your grass type. Then develop a watering, mowing and fertilization schedule that prevents crabgrass by promoting the turfgrass.