I live in the northeast and just had new grass seed put down early spring.  The first one pulls out easily when it has matured, but when it’s small it grows between the lawn and is hard to pull out. It is literally taking over half of my lawn. Weed and feed has not worked.

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  [1]: https://i.sstatic.net/QeTBw.jpg
  [2]: https://i.sstatic.net/LXqcy.jpg
  [3]: https://i.sstatic.net/gD3iH.jpg