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Public Works

Phone: 913-715-8300

1800 W. Old Highway 56, Olathe, KS 66061

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Noxious Weed Management

What are Noxious Weeds?

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

The weeds declared noxious are shown below.  Click on the name below the image for more details about the weed.

Bur Ragweed

Bur Ragweed

 

Canada Thistle

Canada Thistle

 

Field Bindweed

Field Bindweed

 

Hoary Cress

Hoary Cress

 

Johnsongrass
Johnsongrass

 

Kudzu

Kudzu

 

Leafy Spurge

Leafy Spurge

 

Musk Thistle

Musk Thistle

 

Pignut

Pignut

 

Russian Knapweed

Russian Knapweed

 

Sericea lespedeza

Sericea Lespedeza

 

 

Noxious Weeds currently found in Johnson County: Field bindweed, Johnsongrass, Musk thistle, Sericea lespedeza.

Impacts of Noxious Weeds

Weeds, including those declared noxious, impacted the U.S. economy by an estimated 55 billion dollars in 2012.  Invasive species, including noxious weeds, are the #2 threat to native biodiversity, worldwide.  Additionally, noxious and invasive weeds pose a threat to electrical utility reliability, municipal water sources and the safety of our food supply.

General Notice to Control Noxious Weeds

The Kansas Noxious Weed Law K.S.A. 2-1314 et seq requires all persons who own or supervise land in Kansas to control and eradicate all weeds declared noxious by legislative action. The weeds declared noxious are: Bur ragweed, Canada thistle, Field bindweed, Hoary cress, Johnsongrass, Kudzu, Leafy spurge, Musk thistle, Pignut, Quackgrass, Russian knapweed and Sericea lespedeza. Notice is hereby given pursuant to the Kansas Noxious Weed Law to every person who owns or supervises land in Johnson County, that noxious weeds growing or found on such land shall be controlled and eradicated. Control is defined as preventing the production of viable seed and the vegetative spread of the plant.

Failure to observe this notice may result in the County:

  1. Serving a legal notice requiring control of the noxious weeds within a minimum of 5 days. Failure to control the noxious weeds within the time period allowed may result in the County treating the weeds at the owner’s expense and placing a lien on the property if the bill is not paid within 30 days or,
  2. Conviction for non-compliance may result in being charged with a misdemeanor and fines of $100.00 per day up to $1500.

The public is also hereby notified that it is a violation of the Kansas Noxious Weed Law to barter, sell or give away infested nursery stock or livestock feed, unless the feed is fed on the farm where grown, or sold to a commercial processor that will destroy the viability of the noxious weed seed. Custom harvesting machines must be labeled with a label provided by the Kansas Department of Agriculture and must be free of all weed seed and litter when entering the State and when leaving a field infested with noxious weeds. Additional information may be obtained from the Johnson County Noxious Weed Department (913-715-8358) or by contacting the Kansas Department of Agriculture 109 S. W. 9th Topeka, Kansas 66612. (785-296-3556).

 

Purchase Herbicides

Herbicides for purchase

General Information

Herbicides are sold at cost-share pricing for the specific use of Noxious Weed control, on land located in Johnson County.

The Noxious Weed department does not sell herbicides for gravel driveways, brush or general weed control such as dandelions or clover.  We do not sell fertilizer, insecticides or grass seed.

Purchase of Makaze is restricted to 2 1/2 gallons without a pasture inspection.  Pasturegard HL and Remedy Ultra are not available until May 15.

We accept CASH or CHECK only.  (Checks are preferred as we may not be able to provide change for large bills)

 


Herbicide Price List for Noxious Weed Control (prices subject to change):

4 lb. Amine   (Corn Belt)      Full Description
EPA Reg Number: 11773-2

  • Cost:
    • $9.55 per gallon - Private Johnson Co. landowner
    • $21.75 per 2.5 gallons - Private Johnson Co. landowner
    • $32.28 per 2.5 gallons - Governmental agency

Escort XP    (Bayer Environmental Science)      Full Description
EPA Reg Number: 432-1549

  • Cost:
    • $14.40 per 8 oz - Private Johnson Co. landowner
    • $17.50 per 8 oz - Governmental agency

Makaze     (Loveland)    Full Description
EPA Reg Number: 34704-890

  • Cost:
    • $31.55 per 2.5 gallons - Private Johnson Co. landowner
    • $41.25 per 2.5 gallons - Governmental agency

Range Star   (Agri Star)      Full Description
EPA Reg Number: 42750-55

  • Cost:
    •   $18.90 per gallon - Private Johnson Co. landowner
    •   $43.50 per 2.5 gallons - Private Johnson Co. landowner
    •   $24.85 per gallon - Governmental agency

Remedy Ultra   (Dow AgroSciences)      Full Description

EPA Reg Number: 62719-552

  • Cost:
    •   $68.50 per gallon - Private Johnson Co. landowner
    •   $90.99 per gallon - Governmental agency

Remedy Ultra   (Dow AgroSciences)      Full Description
EPA Reg Number: 62719-552

  • Cost:
    • $36.50 per gallon - Private Johnson Co. landowner
    • $48.30 per gallon - Governmental agency

Tordon 22K   (Dow AgroSciences)      Full Description
EPA Reg Number: 62719-552

  • Cost:
    • $35.35 per gallon - Private Johnson Co. landowner
    • $88.38 per 2.5 gallons - Private Johnson Co. landowner
    • $45.30 per gallon - Governmental agency
    • $113.23 per 2.5 gallons - Governmental agency

 

 

Rental Equipment

Sprayers

Sprayer Rental & Usage:

 

Treatment Calendar

Month Weed
March Musk Thistle
April Musk Thistle
May

Musk Thistle

Field Bindweed

June

Musk Thistle

Field Bindweed

Johnson Grass

Sericea Lespedeza

July

Musk Thistle (pull, cut or mow)

Field Bindweed

Johnson Grass

Sericea Lespedeza

August

Musk Thistle (pull, cut or mow)

Field Bindweed

Johnson Grass

Sericea Lespedeza

September

Musk Thistle

Field Bindweed

Johnson Grass

Sericea Lespedeza

October

Musk Thistle

Field Bindweed