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.

• KS Noxious Weeds Booklet
• Invasive Plants of Concern
   

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.

Impact 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.

Informational Videos

• What is a Noxious Weed?
• Roadside spraying and a visit to the Noxious Weed Department

   

General Information and Restrictions

Please note: Herbicide products MUST be applied to land located in Johnson County, Kansas, otherwise the sale will be voided.

The Noxious Weed department does not sell brush killer or "dandelion spray"; we do not sell herbicides for gravel driveways, arenas, fence rows or bare ground.

Glyphosate purchases are RESTRICTED to 2 1/2 gallons per season. PastureGard HL and Remedy Ultra not available until May 15 and are sold for the specific use of Sericea lespedeza control only.

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 and products subject to change):
*Click on product name to learn more*

4 lb Amine  (Corn Belt)  EPA Reg Number 11773-2

• Target Weed(s): Field bindweed, Bull thistle, Canada thistle, Musk thistle

Makaze   (Loveland)   EPA Reg Number 34704-890

• Target Weed(s): Field bindweed, Canada thistle, Kudzu, Johnsongrass, Multiflora rose, Quackgrass

Outrider   (Valent)   EPA Reg Number 59639-223

• Target Weed(s): Johnsongrass

PastureGard HL   (Dow AgroSciences)   EPA Reg Number 62719-477

• Target Weed(s): Sericea lespedeza

Range Star   (Agri Star)    EPA Reg Number 42750-55

• Target Weed(s): Field bindweed, Bull thistle, Bur ragweed, Canada thistle, Kudzu, Leafy spurge, Multiflora rose, Musk thistle, Pignut, Russian knapweed

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

• Target Weed(s): Sericea lespedeza

Tordon 22K   (Dow AgroSciences)    EPA Reg Number 62719-6

• Target Weed(s): Field bindweed, Bull thistle, Bur ragweed, Canada thistle, Kudzu, Leafy spurge, Multiflora rose, Musk thistle, Pignut, Russian knapweed

4 lb Amine  (Corn Belt)  EPA Reg Number 11773-2

Cost:  $9.55 per gallon, $21.75 per 2.5 gallons - Private Johnson County landowner
Cost:  $32.28 per 2.5 gallons - Governmental agency

• Target weeds: Bull thistle, Canada thistle, Field bindweed, Musk thistle
• Active ingredient(s): 2,4-D amine
• Acid equivalent: 3.8 lb./gal
• Broadcast rate: 2-4 pints per acre
• Spot treatment: 4 ounces per 3 gallons
• Rainfast interval: 4 hours
• Soil residual: 2-4 weeks

Makaze   (Loveland)   EPA Reg Number 34704-890

Cost:  $31.55 per 2.5 gallons - Private Johnson County landowner
Cost:  $41.25 per 2.5 gallons - Governmental agency

• Target weeds: Field bindweed, Canada thistle, Kudzu, Johnsongrass, Multiflora rose, Quackgrass
• Active ingredient(s): Glyphosate
• Acid equivalent: 3 lb/gal
• Broadcast rate: 1-3 quarts per acre
• Spot treatment: 0.7-0.13 oz/gal
• Rainfast interval: 2 hours
• Soil residual: N/A

Outrider   (Valent)   EPA Reg Number 59639-223

Cost:  $210.85 per 20 ounces - Private Johnson County landowner
Cost:  $280.80 per 20 ounces - Governmental agency

• Target weeds: Johnsongrass
• Active ingredient(s): Glyphosate
• Acid equivalent: N/A
• Broadcast rate: 1.33 ounces
• Spot treatment: 0.36 grams per gallon
• Rainfast interval: 4 hours
• Soil residual: N/A
• **must use surfactant**

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PastureGard HL   (Dow AgroSciences)   EPA Reg Number 62719-477

Cost:  $68.50 per gallon - Private Johnson County landowner
Cost:  $90.99 per gallon - Governmental agency

• Target weeds: Sericea lespedeza
• Active ingredient(s): Triclopyr (ester), Fluroxypyr
• Acid equivalent: Triclopyr - 1.5 lb/gal, Fluroxypyr - 0.5 lb/gal
• Broadcast rate: 1-3 pints per acre
• Spot treatment: 0.55-1.0 oz per gallon
• Rainfast interval: 6 hours
• Soil residual: 3-4 weeks

Range Star   (Agri Star)   EPA Reg Number 42750-55

Cost:  $18.90 per gallon, $43.50 per 2.5 gallons - Private Johnson County landowner
Cost:  $24.85 per gallon - Governmental agency

• Target weeds: Field bindweed, Bull thistle, Bur ragweed, Canada thistle, Kudzu, Leafy spurge, Multiflora rose, Musk thistle, Pignut, Russian knapweed
• Active ingredient(s): 2,4-D and Dicamba
• Acid equivalent: 2,4-D - 2.87 lb/gal, Dicamba - 1 lb/gal
• Broadcast rate: 1-2 quarts per acre
• Spot treatment: 1 oz per gallon
• Rainfast interval: 4 hours
• Soil residual: 6-9 weeks

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

Cost:  $36.50 per gallon - Private Johnson County landowner
Cost:  $48.30 per gallon - Governmental agency

• Target weeds: Sericea lespedeza
• Active ingredient(s): Triclopyr (ester)
• Acid equivalent: 4 lbs/gal
• Broadcast rate: 1-2 pints per acre
• Spot treatment: 1-2 oz per gallon
• Rainfast interval: 6-8 hours
• Soil residual: 3-6 weeks

Tordon 22K   (Dow AgroSciences)   EPA Reg Number 62719-6

Cost:  $35.35 per gallon, $88.38 per 2.5 gallons - Private Johnson County landowner
Cost:  $45.30 per gallon, $113.23 per 2.5 gallons - Governmental agency

• Target weeds: Field bindweed, Bull thistle, Bur ragweed, Canada thistle, Kudzu, Leafy spurge, Multiflora rose, Musk thistle, Pignut, Russian knapweed
• Active ingredient(s): Picloram
• Acid equivalent: 2 lbs/gal
• Broadcast rate: 8-16 ounces per acre
• Spot treatment: 0.10 - 0.75 oz per gallon
• Rainfast interval: 6 hours
• Soil residual: 6-12 weeks (may last longer than 52 weeks, under certain conditions)