Purchase Herbicides
Note: Please call the office before visiting to ensure the Noxious Weed Director is available.
The Noxious Weed department sells herbicide products that must be applied to land located in Johnson County, Kansas, otherwise full cost will be collected. The 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. Remedy is sold for the specific use of Sericea lespedeza control only and is unavailable until May 15.
All prices subject to change without notice. Call the Noxious Weed office for current pricing.
The Noxious Weed department is open Monday-Friday 6:30 a.m.-3 p.m., closed noon-1 p.m. each day. We accept checks (preferred), cash (exact amount), and credit cards (2.25% processing fee).
Herbicide Price List for Noxious Weed Control
Call for pricing.
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
Call for pricing.
Target weeds: Sericea lespedeza
Active ingredient(s): Metsulfuron-methyl
Acid equivalent: N/A
Broadcast rate: 1 ounce per acre
Spot treatment: 0.65 gram
Rainfast interval: 4 hours
Soil residual: 4-6 weeks (may last longer under certain conditions)
Call for pricing.
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
2.5 gallon limit for Field bindweed and Johnsongrass only
Call for pricing.
Target weeds: Johnsongrass
Active ingredient(s): Sulfosulfuron
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**
Call for pricing.
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
Call for pricing.
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
Call for pricing.
*Must possess a state issued applicators license to purchase and apply Tordon 22K.
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)