crab grass - Knowledgebase Question

Chattanooga, Te
Avatar for ALEESA7106
Question by ALEESA7106
August 3, 2010
how avoid crab grass from lawn.what we use and when?

Answer from NGA
August 3, 2010
Crabgrass starts germinating when soil temperatures are 50 to 55 degrees F for ten or more days and germination can take place over a 6 week period. Pre-emergence herbicides provide excellent weed control for crabgrass so applying a product such as Scotts Halts Crabgrass Preventer or StaGreen CrabEx Crabgrass Preventer early in the season will keep your lawn crabgrass free all season long. At this point about all you can do is pull out the crabgrass. It is an annual and will die out over the winter months, but the seeds it leaves behind will sprout in the spring. Use one of the pre emergent crabgrass preventers as mentioned above and I think you'll get control of those pesky weeds.

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