Noxious Weeds

Field bindweed

The Noxious Weed department is closed until the end of January 2023.

Noxious weeds are plants that the Kansas Legislature has declared to have a negative impact on agriculture, public health, the environment or the economy.

Noxious Weeds currently found in Johnson County:

  • Field bindweed
  • Johnsongrass
  • Musk thistle
  • Sericea lespedeza

To learn more about these weeds, please visit the Identifying Noxious Weeds page.

 

General Notice To Control Noxious Weeds

Russian knapweed

K.S.A. 2-1314 Noxious weeds; control and eradication; listing. It shall be the duty of persons, associations of persons, the secretary of transportation, the boards of county commissioners, the township boards, school boards, drainage boards, the governing body of incorporated cities, railroad companies and other transportation companies or corporations or their authorized agents and those supervising state-owned lands to control the spread of and to eradicate all weeds declared by legislative action to be noxious on all lands owned or supervised by them and to use such methods for that purpose and at such times as are approved and adopted by the Kansas Department of Agriculture.

The term noxious weeds shall mean Kudzu (Pueraria lobata), Field bindweed* (Convolvulus arvensis), Russian knapweed (Centaurea repens), Hoary cress (Cardaria draba), Canada thistle (Cirsium arvense), Quackgrass (Agropyron repens), Leafy spurge (Euphorbia esula), Bur ragweed (Ambrosia grayi), Pignut (Hoffmannseggia densiflora), Musk (nodding) thistle* (Carduus nutans L.), Johnsongrass* (Sorghum halepense) and Sericea lespedeza* (Lespedeza cuneata).

Treatment Calendar

March Musk thistle
 
April Musk thistle
 
May Musk thistle
Field bindweed
June

Musk thistle (pull, cut or mow)
Field bindweed
Johnsongrass
Sericea lespedeza

July

Musk thistle (pull, cut or mow)
Field bindweed
Johnsongrass
Sericea lespedeza

August

Musk thistle (pull, cut or mow)
Field bindweed
Johnsongrass
Sericea lespedeza

September

Musk thistle
Field bindweed
Johnsongrass
Sericea lespedeza

October Musk thistle
Field bindweed

 

 


 

What are noxious weeds?

What you need to know about those pesky weeds.