wire grass - Knowledgebase Question

richmond, Vi
Question by fshayward
March 24, 2009
My lawn has been taken over by wire grass!!
Last year, I paid a professional to kill the entire front yard..but it came back .!! It's ruining my blacktop driveway and flower beds..

Answer from NGA
March 24, 2009


Wire grass is also called devil grass but it is botanically Cynodon dactylon, and grown as bermuda grass - an oft used turfgrass in the southern states. If bermudagrass seeds germinate in areas around ornamental plantings, the seedlings can be controlled with shallow cultivation, hoeing, or a thin layer of mulch.

Herbicides such as Round Up (glyphosate) will kill the plants but not the seeds they leave behind. And, Round Up is a contact vegetation killer so anything it touches will also be damaged. You might have some success by using a pre-emergent such as the corn gluten based product called Concern. Pre emergence products should be applied in February, prior to germination of bermuda grass seeds.

Hope this information helps!

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