crab grass - Knowledgebase Question

fort worth, Te
Question by susanp_46
March 21, 2009
what can we use to kill crab grass in an established lawn.
Thank you for the answer to my shade problem in the small area of my yard.


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Answer from NGA
March 21, 2009

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Glad we were helpful with your last question and thanks for stopping by again. Crabgrass is easy to control in both turfgrass and ornamental beds with herbicides that are applied before it germinates (preemergent herbicides) or after it germinates (postemergent herbicides). Read the label to make sure the product can be used on your turf type and around the ornamentals in your landscape. Use a crabgrass killer now, wait a few weeks and then rake out the dead crabgrass. Once you have done that, reseed your lawn. Later this summer you can apply a pre-emergent to keep crabgrass seeds from sprouting. Be sure to keep your fescue well watered, mowed and fed. It will grow thick and lush enough to crowd out any weeds that try to grow. Next winter make another application of pre-emergent crabgrass control product and next year your lawn should be crabgrass free. Best wishes with your landscape!

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