Crabgrass and Seeding - Knowledgebase Question

Syosset, Ne
Question by garx
April 23, 2009
Can I put down something for crabgrass and separately for seeding? I was told the crabgrass treatment would kill new grass.

Answer from NGA
April 23, 2009


Crabgrass pre emergents will keep grass seeds from germinating but if the crabgrass has already sprouted, pre emergence products will not affect the plants. You might try a post emergent crabgrass controller on your lawn now, then wait 2-3 weeks and overseed your lawn. Or, wait until this fall to overseed and you won't have to time your crabgrass control applications with such accuracy. Best wishes with your lawn.

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