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Beverly from Thornton, Pa writes

Will Bayer Advanced Crabgrass Killer for Lawns RTS work on mature crabgrass that has gone to seed?

I live in eastern pa and have mature crabgrass covering a good portion of my lawn that has gone to seed. Will this product work and when should I apply? Daytime temps have been high 80's/low 90's

Answer:

Since Bayer Advanced Crabgrass Killer for Lawns RTS is a herbicide, it could take up to two weeks to eliminate crabgrass. If the weeds have already gone to seed, it could take about two weeks to germinate, and you will have to do additional applications. It is best if you wait until the fall/spring to use a pre-emergent product to prevent crabgrass from coming up. Prodiamine is an excellent option for the control of crabgrass and other broadleaf weeds.

Answer last updated on: 08/19/2016

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