Dallisgrass (Paspalum Dilitatum)
What does it look like?: Commonly mistaken for Crabgrass, Dallisgrass produces round patches of messy mounding leaves and tall stalks which can grow almost 18 in. tall. The stalks produces spikes which house hundreds of black seeds that can be spread by wind, animals, or a lawnmower.
What causes it?: This guy can grow in a variety of areas. It prefers nitrogen rich, sandy or clay soils.
When does it show up?: Late Spring – early Fall.
Best treatment plan: Do not mow! Cut the stalks/spiklets off manually and remove them carefully, try not to spread its seeds everywhere. Then dig up or kill the base with a selective post-emergent herbicide. You can also spot spray Roundup in the center of weed for a total kill. May damage good turf around small area of weed. Call a professional for a free quote.
How long will it take to get rid of it?: Once Dallisgrass has surfaced, it can be extremely difficult to get rid of. Battles with this little pest can last the entire Summer.