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  2. How to Stop Crabgrass From Taking Over Your Lawn - AOL

    www.aol.com/stop-crabgrass-taking-over-lawn...

    If you use a pre-emergent herbicide, you’ll need to wait to plant grass seed until 60 days after application. To lay down sod, wait 75 days. John D. Byrd, Mississippi State University, Bugwood.org

  3. The Best Natural Weed Killers to Keep Your Lawn Looking ... - AOL

    www.aol.com/keep-lawn-garden-looking-pristine...

    6 Best Garden Hoses. Natria Grass & Weed Control with Root Kill. Poison ivy and crabgrass are no match for this pick from Natria! It works by targeting weeds' roots, so you won't have to worry ...

  4. How To Get Rid Of Crabgrass That's Growing In Your Lawn ... - AOL

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  5. Preemergent herbicide - Wikipedia

    en.wikipedia.org/wiki/Preemergent_herbicide

    In some areas of the world, they are used to prevent crabgrass from appearing in lawns. [1] Preemergent herbicides are applied to lawns in the spring and autumn, to prevent the establishment of weed seeds. They will not affect any established plant. In the spring, they should be applied when air temperatures reach 65–70 °F for four ...

  6. MCPA - Wikipedia

    en.wikipedia.org/wiki/MCPA

    MCPA acts by mimicking the action of the plant growth hormone auxin, which results in uncontrolled growth and eventually death in susceptible plants, mainly dicotyledons. [3] It is absorbed through the leaves and is translocated to the meristems of the plant. Uncontrolled, unsustainable growth ensues, causing stem curl-over, leaf withering, and ...

  7. 2,4-Dichlorophenoxyacetic acid - Wikipedia

    en.wikipedia.org/wiki/2,4-Dichlorophenoxyacetic_acid

    2,4-Dichlorophenoxyacetic acid is an organic compound with the chemical formula Cl 2 C 6 H 3 OCH 2 CO 2 H.It is usually referred to by its ISO common name 2,4-D. [4] It is a systemic herbicide that kills most broadleaf weeds by causing uncontrolled growth, but most grasses such as cereals, lawn turf, and grassland are relatively unaffected.