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Spiny Sowthistle Weed Killer

Sonchus asper Herbicide

Description of Sowthistle, Spiny (sonchus asper):
Spiny sowthistle an an annual weed that may grow up to 6 feet in height. The leaves are greenish-blue and, when cut, the stems release a milky white sap. The flowers are about 1/2 to 1 inch across and are yellow. It's easy to remove this particular weed due to the fact that it is just a large taproot with a plant on top.


Other common name: Prickly Sowthistle
According to the manufacturer approved labels: The following 8 weed killers, applied at the listed application rates, will control Spiny Sowthistle.
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
$4.89 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
Simple Lawn Solutions X Ryan Knorr - Lawn Essentials Bundle Box - 6 Piece S...
151
$
104.79
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
$1.09 - $3.48 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
$1.09 - $3.48 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
Label Rate:
0.056 ounces per gallon
Cost Effectiveness:
Makes 177.187 gallons
at a cost of
$0.76 per gallon
Blanket Treatment
per
Label Rate:
0.056 ounces per 1,000 sqft
Cost Effectiveness:
Covers 177187 square feet
at a cost of
$0.76 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
| More Info | View Label
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Blanket Treatment
Label Rate:
0.37 - 1.47 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 217800 - 871200 square feet
at a cost of
$0.00 per 1,000 sqft
Safe On
Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, St. Augustinegrass, Tall Fescue, and Zoysiagrass
Safe Rate:
0.37 - 1.47 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for 2,4-D Amine 4 & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
1.33 fluid ounces per gallon
Cost Effectiveness:
Makes 24.06 gallons
at a cost of
$0.81 per gallon
Blanket Treatment
Label Rate:
0.73 - 1.16 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 27657 - 43560 square feet
at a cost of
$0.45 - $0.70 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:
6.4 fluid ounces per gallon
Cost Effectiveness:
Makes 5 gallons
at a cost of
$3.59 per gallon
Blanket Treatment
Label Rate:
6.4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$3.59 per 1,000 sqft
Safe On
Bentgrass, Fine Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, Tall Fescue, and Zoysiagrass
Safe Rate:
6.4 fluid ounces per gallon
or
6.4 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for BioAdvanced All in One Lawn Weed and Crabgrass Killer & these grass types
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
6.25 fluid ounces per gallon
Cost Effectiveness:
Makes 5.12 gallons
at a cost of
$4.38 per gallon
Blanket Treatment
Label Rate:
6.4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$4.48 per 1,000 sqft
Safe On
Annual Ryegrass, Bermudagrass, Buffalograss, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, Tall Fescue, and Zoysiagrass
Safe Rate:
6.25 fluid ounces per gallon
or
6.4 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Fertilome Weed-Out with Crabgrass Killer & these grass types
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.73 - 1.1 fluid ounces per gallon
Cost Effectiveness:
Makes 116.364 - 175.342 gallons
at a cost of
$0.19 - $0.29 per gallon
Blanket Treatment
Label Rate:
0.73 - 1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 116364 - 175342 square feet
at a cost of
$0.19 - $0.29 per 1,000 sqft
Safe On
No safe on treatments listed. Please, review the label or contact the merchant for more information.

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