Barnyard Grass and Foreign Grass Weed Control

In this video Randy discusses how to deal with Barnyard Grass.

Key Points:
1. Barnyard Grass usually shows up in newly planted sod when the temperature is above 85 degrees.
2. If you continue your regular maintenance program the first frost will kill off the barnyard grass.
3. Crabgrass controlling herbicides with the chemical Quinclorac are effective on barnyard grass.
4. Spot treating the areas that have watergrass is recommended.

If you have more questions about how to control barnyard grass or other foreign grasses call Chanshare Farms at 866-763-3279.

12 Comments

  1. You have several options. If you don’t care about using chemicals, round-up is a chemical that you can find at your local garden center that will completely kill everything if applied properly. If you want to do it the green way, place several layers of newspaper over the vegetation you want killed. Eventually, everything growing in the area will suffocate and die due to the lack of air. Also, keeping the newspaper soaking wet will speed this process up. You may also want to place something heavy on top of the newspapers so they don’t get blown away. In a few weeks, lift up part of the newspaper and see if everything is dead. If it isn’t, leave the newspaper there for a few more weeks. After this is done, you’ll need to start adding organic matter to the soil. Examples of this include table scraps (but NOTHING with meat or oil of any kind), grass clippings, tea bags, coffee grounds, orange peels, etc. Overtime the organic matter will break down in the soil, and vegetables LOVE soils rich in organic matter. If you want more info on this, just google composting . There’s TONS of info on this.

  2. Samantha, thank you for your response. Those are great suggestions for controlling weeds and being completely green. The Bayer Lawn Weed and Crabgrass Killer will target broad leaf weeds without killing the bluegrass, whereas the Round-Up kills all plants that it touches. The Bayer Lawn Weed and Crabgrass Killer will take about 24 hours before you start seeing results.

  3. I was wondering what that little menace was called. I just placed new sod in my yard, and I discovered what I thought was a type of crabgrass – but it was actually watergrass it seems. Excellent tips, and good to know that it should die off after the first frost.

  4. Will the Quinclorac chemical or Bayer Lawn Weed and Crabgrass killer also kill my Fescue grass.

  5. #3 under Keypoints, should say “herbicide” not “pesticide”. Big difference.

  6. Thank you for the feedback.

  7. Quinclorac should not kill Fescue when used properly.

  8. when is the best time to apply this when it is dry, or before a rain or dew, morning or evening. spring or fall. someone told us to apply preen early in the spring before the grass starts to grow

  9. Good morning. Will the Bayer Lawn Weed and Crabgrass Killer also take care of Creeping Charlie? Thank you!

  10. Quinclorac is one of the active ingredients in Bayer Lawn Weed and Crabgrass Killer. This is a good all around foreign grass killer and should take care of Creeping Charlie without damaging bluegrass, fescue or rye grass.

  11. Most weed killers are rain safe after 2 hours. Apply pre-emergents in the Spring and post-emergents during the summer and fall.

  12. You will need to wait 24-48 hours after using the Bayer Product before adding fertilizer or water. If you are over seeding the area you would want to wait for 1-2 after applying the bayer product to ensure that it doesn’t affect the new seed. Remember that cool season grass seed (especially Bluegrass) will take 14-28 days to germinate, so ensure that the area overseeded doesn’t dry out completely in those areas during the germination process.

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