Common Bermudagrass

Biology: Common bermudagrass (Cynodon dactylon) is the most commonly used turfgrass in the southern United States, but it is also a difficult-to-control weed in northern turf. Bermudagrass is a drought tolerant, warm-season, perennial grass species that tolerates low mowing and actively spreads vegetatively by both rhizomes and stolons but also has the ability to spread by seed.

Identification: Bermudagrass has a blue-green leaf and forms large patches in lawns as it spreads radially from rhizomes and stolons once it becomes established. The stolons can be easily spotted spreading over sidewalks and drives.

Enhancing Turf Density

Actively Improve Cool-Season Turf: To boost the density of your cool-season turf, overseed and apply fall fertilizers. This proactive approach helps in creating a more robust and healthy lawn.

No Known Biological Controls

Understanding the Limits: Currently, there are no known biological methods to control common bermudagrass effectively.

Chemical Control Strategies

Pre-Seeding or Sodding Measures

Effective Preplant Strategies: For the most effective control, use a preplant soil fumigant. If fumigation is impractical, apply glyphosate three times during the growing season (May, July, and September). Combining glyphosate with fluazifop can enhance the control effectiveness.

Homeowner’s Guide

Over-the-Counter Solutions: Limited products are available for homeowners. Bayer Advanced Bermudagrass Control for Lawns is recommended. Apply it multiple times, especially at the start and end of summer, for effective suppression.

Professional Solutions

Advanced Control for Professionals: During renovation, professionals should opt for products containing fluazifop, like Fusilade II and Ornamec, for better results.

Conclusion

Managing Expectations: Controlling bermudagrass is challenging, and complete eradication is often not feasible. Focus on suppression and reduction to manage this tough turf weed effectively.