Johnson grass is considered a noxious weed and if you have it on your property you can be fined for not killing it or charged by the county if they have to kill it.
Quote from the Kansas Noxious weed Dept:
Home > Kansas Noxious Weed Control Program
The Kansas Noxious Weed Law was first enacted in 1937. It requires the control, management and eradication of the following 12 plants designated as noxious weeds by the Kansas Legislature.
Kansas Noxious Weeds
Field bindweed (Convolvulus arvensis)
Musk (nodding) thistle (Carduus nutans)
Sericea lespedeza (Lespedeza cuneata)
Russian knapweed (Centaurea repens)
Hoary cress (Cardaria draba)
Canada thistle (Cirsium arvense)
Quackgrass (Agropyron repens)
Leafy spurge (Euphorbia esula)
Johnsongrass (Sorghum halepense)
Kudzu (Pueraria lobata)
Bur ragweed (Ambrosia grayii)
Pignut (Hoffmannseggia densiflora)
County Option Weeds:
Multiflora rose (Rosa multiflora)
Bull thistle (Cirsium vulgare)
The law assigns specific responsibilities to the three groups listed below:
Landowners
All landowners, both public and private, are required to control and eradicate all noxious weeds on lands that they own or manage.
Quote from the Kansas Noxious weed Dept:
Home > Kansas Noxious Weed Control Program
Noxious Weed Control Program
The Kansas Noxious Weed Law was first enacted in 1937. It requires the control, management and eradication of the following 12 plants designated as noxious weeds by the Kansas Legislature.
Kansas Noxious Weeds
Field bindweed (Convolvulus arvensis)
Musk (nodding) thistle (Carduus nutans)
Sericea lespedeza (Lespedeza cuneata)
Russian knapweed (Centaurea repens)
Hoary cress (Cardaria draba)
Canada thistle (Cirsium arvense)
Quackgrass (Agropyron repens)
Leafy spurge (Euphorbia esula)
Johnsongrass (Sorghum halepense)
Kudzu (Pueraria lobata)
Bur ragweed (Ambrosia grayii)
Pignut (Hoffmannseggia densiflora)
County Option Weeds:
Multiflora rose (Rosa multiflora)
Bull thistle (Cirsium vulgare)
The law assigns specific responsibilities to the three groups listed below:
Landowners
All landowners, both public and private, are required to control and eradicate all noxious weeds on lands that they own or manage.