Jul 18 2024 25 mins
In episode 34 of the Sunshine Gardening Podcast, host Kristin Hildabrand welcomes Kenneth Clayton, an Extension Associate in turfgrass from the University of Kentucky. Together, they discuss bermudagrass's challenges to Kentucky lawns and share practical strategies for controlling this aggressive and pervasive grass.
Kenneth begins by explaining the nature of bermudagrass, pointing out its rhizomes and stolons, which facilitate quick spread and difficult eradication from lawns. He emphasizes that bermudagrass is desirable for some due to its hardy nature and ease of care in warm seasons, but it becomes problematic when homeowners do not want it in their lawns. He shares bermudagrass's growth habits and environmental resilience, contributing to its dominance over cool-season grasses like tall fescue and Kentucky bluegrass, particularly in Kentucky's climate.
Source: Clemson University
The conversation shifts to practical methods for controlling bermudagrass, involving both cultural practices and possible chemical interventions. Kenneth recommends raising mowing heights and adjusting fertilization timing and practices to suppress bermudagrass growth without inadvertently promoting it. He also suggests overseeding in areas where bermudagrass is dormant during cooler seasons and outlines specific chemicals and strategies for those seeking more aggressive control measures. These include the use of glyphosate and multiple applications of selective herbicides documented in the UK publication "Bermudagrass Control for Kentucky Lawns" (AGR-278).
Kristin and Kenneth discuss the importance of setting realistic expectations for the eradication process. They note that completely removing bermudagrass often requires an integrated approach involving persistently weakening the grass through repeated cutting and chemical applications until colder weather assists in its control.
In conclusion, Kenneth reiterates that while cultural practices alone will not fully eradicate bermudagrass, they are crucial when combined with chemical methods for managing its growth. Furthermore, he stresses the importance of following label directions and safety guidelines when using herbicides to ensure environmental safety and maximize treatment effectiveness.
References:
* Bermudagrass Control for Kentucky Lawns, AGR-278 Publication: https://www2.ca.uky.edu/agcomm/pubs/AGR/AGR278/AGR278.pdf
* Horticulture Webinar Wednesday, Controlling Bermudagrass in Tall Fescue Lawns: https://www.youtube.com/watch?v=NWOYZsSUj9Y