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.

Control Options for Thistle, Canada

Legend:
Control
Suppression
No Control
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.08 ounces per gallon
Cost Effectiveness:
Makes 118.12 gallons
at a cost of
$1.03 per gallon
Broadcast Treatment
per
Label Rate:
0.08 ounces per 1,000 sqft
Cost Effectiveness:
Covers 118125 square feet
at a cost of
$1.03 per 1,000 sqft
Safe On
St. Augustinegrass, Bermudagrass, Centipedegrass, Zoysiagrass, Buffalograss Safe Rate:
0.06 - 0.11 ounces per gallon
or
0.06 - 0.11 ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
of
Label Rate:
1.5% mixture
Cost Effectiveness:
Makes 16.67 gallons
at a cost of
$1.37 per gallon
Broadcast 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
| More Info | View Label
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
0.11 - 0.16 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 199131 - 278784 square feet
at a cost of
$0.37 - $0.52 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
| More Info | View Label
Spot Treatment
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.63 per gallon
Broadcast Treatment
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.70 - $1.39 per 1,000 sqft
Safe On
St. Augustinegrass Safe Rate:
0.09 fluid ounces per 1,000 sqft
Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue Safe Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Perennial Ryegrass, Fine Fescue, Red Fescue, Chewings Fescue, Hard Fescue Safe Rate:
0.11 fluid ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.67 per gallon
Broadcast Treatment
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.74 - $1.49 per 1,000 sqft
Safe On
St. Augustinegrass Safe Rate:
0.09 fluid ounces per 1,000 sqft
Chewings Fescue, Hard Fescue, Perennial Ryegrass, Fine Fescue, Red Fescue Safe Rate:
0.11 fluid ounces per 1,000 sqft
Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue Safe Rate:
0.11 - 0.18 fluid ounces per 1,000 sqft
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
$0.21 per gallon
Broadcast Treatment
Label Rate:
3.2 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 40000 square feet
at a cost of
$1.00 per 1,000 sqft
Safe On
Red Fescue, Bentgrass, Centipedegrass, Carpetgrass Safe Rate:
0.33 fluid ounces per gallon
or
1.6 fluid ounces per 1,000 sqft
Comment and Ask Questions About Canada Thistle