Noxious Weed 

The main objective of the Geary County Noxious Weed Department is to control noxious weeds with the least damage to desirable vegetation at a minimum cost. We spray county roadsides & ditches, routinely inspect properties & pastures as requested by the state.

The Kansas Noxious Weed Law

Under the Kansas Noxious Weed Law, K.S.A. 2-1314, the state legislature has declared certain weeds noxious. The law requires citizens who own or supervise land in Kansas to use approved methods to control and eradicate noxious weeds

Noxious Weed Types

  • Musk Thistle
  • Canada Thistle
  • Field Bindweed
  • Bur Ragweed
  • Sericea Lespedeza
  • Hoary Cress
  • Johnsongrass
  • Leafy Spurge
  • Quackgrass
  • Russian Knapweed
  • Kudzu
  • Pignut


The weeds listed have been declared noxious because of their abundance; ability to reproduce, compete and spread rapidly or they may be toxic to humans or livestock. The most commonly recognized noxious weeds are Musk Thistle and Field Bindweed.

Chemicals for Sale

The county is authorized to sell pesticide products to agricultural landowners within the county at a reduced cost for the control of noxious weeds only on privately owned land. Please call our office for current prices and availability.

  1. 1 Musk Thistle & Canada Thistle
  2. 2 Field Bindweed & Bur Ragweed
  3. 3 Sericea Lespedeza & Hoary Cress
  4. 4 Johnsongrass & Leafy Spurge
  5. 5 Quackgrass & Russian Knapweed
  6. 6 Kudzu & Pignut