To prevent Crabgrass you have to act early so that it does not become a problem in summer. The best way to beat it is to attack it before it shows by using a pre-emergent like Scott's LawnPro Crabgrass Preventer with Lawn Fertilizer. According to Scott's, Crabgrass gets its name because it sprawls from a central root low across the ground like a crab walking. It is so problematic in the summer because it thrives in hot dry conditions. A single crabgrass weed in the fall will distribute thousands of seeds all set to germinate in the spring. That is why early action is key. Once you have put your preventer down there are ways to help discourage future outbreaks. The first is to make sure and mow at the correct height for your grass type. The higher the grass the more it shades the soil preventing germination. The second is to water your grass regularly. Shallow and infrequent watering distresses the grass allowing crabgrass to take over.
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