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Canada Thistle Weed Killer

Cirsium arvense Herbicide

Description of Thistle, Canada (Cirsium arvense):
Canada thistle is an extremely difficult weed to kill and remove. September is the best time of year to apply herbicide to Canada thistle. It spreads underground via rhizomes and in a system of vertical and horizontal roots. The seeds are cotton-like and spread via the wind during seeding.
According to the manufacturer approved labels: The following 12 weed killers, applied at the listed application rates, will control Canada Thistle.
Pre-Emergent
Post-Emergent
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Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
2.86 lbs per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$4.80 per 1,000 sqft
Safe On
Annual Ryegrass, Bahiagrass, Bermudagrass, Buffalograss, Centipedegrass, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Red Fescue, Tall Fescue, and Zoysiagrass
Safe Rate:
2.86 lbs per 1,000 sqft
CertainLabel™ Calculator for Scotts Turf Builder Weed and Feed & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
of
Label Rate:
1.5% mixture
Cost Effectiveness:
Makes 16.667 gallons
at a cost of
$1.37 per gallon
Blanket Treatment
Label Rate:
2.94 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 10890 square feet
at a cost of
$2.09 per 1,000 sqft
Safe On
No safe on treatments listed. Please, review the label or contact the merchant for more information.
Pre-Emergent
Post-Emergent
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Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
5 lbs per 1,000 sqft
Cost Effectiveness:
Covers 4000 square feet
at a cost of
$6.87 per 1,000 sqft
Safe On
Bahiagrass, Bermudagrass, Fine Fescue, Kentucky Bluegrass, Perennial Ryegrass, and Tall Fescue
Safe Rate:
5 lbs per 1,000 sqft
CertainLabel™ Calculator for Scotts Turf Builder Triple Action & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
2.86 lbs per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$4.37 per 1,000 sqft
Safe On
Annual Ryegrass, Bahiagrass, Bermudagrass, Buffalograss, Centipedegrass, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Red Fescue, Tall Fescue, and Zoysiagrass
Safe Rate:
2.86 lbs per 1,000 sqft
CertainLabel™ Calculator for Scotts Turf Builder WinterGuard Fall Weed and Feed & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.75 - 2.4 fluid ounces per gallon
Cost Effectiveness:
Makes 6.667 - 21.333 gallons
at a cost of
$1.23 - $3.94 per gallon
Blanket Treatment
Label Rate:
0.75 - 2.4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 6667 - 21333 square feet
at a cost of
$1.23 - $3.94 per 1,000 sqft
Safe On
Fine Fescue, Perennial Ryegrass, Red Fescue, and Tall Fescue
Safe Rate:
1.5 - 2.4 fluid ounces per gallon
or
1.5 - 2.4 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Bonide Weed Beater Ultra Concentrate & these grass types
Bahiagrass, Buffalograss, and Centipedegrass
Safe Rate:
0.75 - 1.8 fluid ounces per gallon
or
0.75 - 1.1 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Bonide Weed Beater Ultra Concentrate & these grass types
Bermudagrass and Zoysiagrass
Safe Rate:
0.75 - 1.8 fluid ounces per gallon
or
0.75 - 1.8 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Bonide Weed Beater Ultra Concentrate & these grass types
St. Augustinegrass
Safe Rate:
0.75 - 1.8 fluid ounces per gallon
or
0.75 - 1.1 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Bonide Weed Beater Ultra Concentrate & St. Augustinegrass
Pre-Emergent
Post-Emergent
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Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
2.4 lbs per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$4.94 per 1,000 sqft
Safe On
Annual Ryegrass, Bermudagrass, Buffalograss, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, Seashore Paspalum, Tall Fescue, and Zoysiagrass
Safe Rate:
2.4 lbs per 1,000 sqft
CertainLabel™ Calculator for BioAdvanced All-in-One Weed & Feed with Microfeed Action & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Blanket Treatment
Label Rate:
0.11 - 0.16 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 199131 - 278784 square feet
at a cost of
$0.35 - $0.49 per 1,000 sqft
Safe On
No safe on treatments listed. Please, review the label or contact the merchant for more information.
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.085 ounces per gallon
Cost Effectiveness:
Makes 118.125 gallons
at a cost of
$1.10 per gallon
Blanket Treatment
per
Label Rate:
0.085 ounces per 1,000 sqft
Cost Effectiveness:
Covers 118125 square feet
at a cost of
$1.10 per 1,000 sqft
Safe On
Bermudagrass, Buffalograss, Centipedegrass, St. Augustinegrass, and Zoysiagrass
Safe Rate:
0.056 - 0.113 ounces per gallon
or
0.056 - 0.113 ounces per 1,000 sqft
CertainLabel™ Calculator for Celsius WG & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.68 per gallon
Blanket Treatment
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.75 - $1.50 per 1,000 sqft
Safe On
Chewings Fescue, Fine Fescue, Hard Fescue, Perennial Ryegrass, and Red Fescue
Safe Rate:
0.11 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Tenacity & these grass types
Buffalograss, Centipedegrass, Kentucky Bluegrass, and Tall Fescue
Safe Rate:
0.11 - 0.18 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Tenacity & these grass types
Bermudagrass
Safe Rate:
0.08 fluid ounces per gallon
or
0.11 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Tenacity & Bermudagrass
St. Augustinegrass
Safe Rate:
0.09 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Tenacity & St. Augustinegrass
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.67 fluid ounces per gallon
Cost Effectiveness:
Makes 192 gallons
at a cost of
$0.25 per gallon
Blanket Treatment
Label Rate:
3.2 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 40000 square feet
at a cost of
$1.20 per 1,000 sqft
Safe On
Bentgrass, Carpetgrass, Centipedegrass, and Red Fescue
Safe Rate:
0.33 fluid ounces per gallon
or
1.6 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Triple Threat & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.57 per gallon
Blanket Treatment
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.62 - $1.25 per 1,000 sqft
Safe On
Chewings Fescue, Fine Fescue, Hard Fescue, Perennial Ryegrass, and Red Fescue
Safe Rate:
0.11 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Primesource Meso 4 SC Select & these grass types
Buffalograss, Centipedegrass, Kentucky Bluegrass, and Tall Fescue
Safe Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Primesource Meso 4 SC Select & these grass types
St. Augustinegrass
Safe Rate:
0.09 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Primesource Meso 4 SC Select & St. Augustinegrass
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
of
Label Rate:
0.5 - 1% mixture
Cost Effectiveness:
Makes 100 - 200 gallons
at a cost of
$0.25 - $0.51 per gallon
Blanket Treatment
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116160 - 174240 square feet
at a cost of
$0.29 - $0.44 per 1,000 sqft
Safe On
No safe on treatments listed. Please, review the label or contact the merchant for more information.