Because the use of herbicides in road ditches is costly and has done little to control weed problems, a more integrated approach has been implemented. Native warm and cool season prairie grasses that are well adapted to local environmental conditions and are more adept at excluding noxious weeds are planted in all regrade and cleaned ditch areas. Timely burning is also used to invigorate native grass stands in the roadside.
Besides being an inexpensive biological control to weeds, native grasses provide superior wildlife habitat, excellent erosion control, are very long-lived, and provide a permanent display of our tall-grass prairie heritage.
If you have questions, suggestions, or comments on roadside vegetation management, please contact our office at 641-423-5309.