Prickly Sowthistle Weed Killer

Sonchus asper Herbicide

Common Name for: Spiny Sowthistle
Description of Sowthistle, Prickly (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.
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.75 - 2.4 fluid ounces per gallon
Cost Effectiveness:
Makes 6.67 - 21.33 gallons
at a cost of
$1.00 - $3.21 per gallon
Broadcast Treatment
Label Rate:
0.75 - 2.4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 6667 - 21333 square feet
at a cost of
$1.00 - $3.21 per 1,000 sqft
Safe On
Bahiagrass, Buffalograss, Centipedegrass, St. Augustinegrass Safe Rate:
0.75 - 1.8 fluid ounces per gallon
or
0.75 - 1.1 fluid ounces per 1,000 sqft
Bermudagrass, Zoysiagrass Safe Rate:
0.75 - 1.8 fluid ounces per gallon
or
0.75 - 1.8 fluid ounces per 1,000 sqft
Perennial Ryegrass, Tall Fescue, Red Fescue, Fine Fescue Safe Rate:
1.5 - 2.4 fluid ounces per gallon
or
1.5 - 2.4 fluid ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.056 ounces per gallon
Cost Effectiveness:
Makes 177.19 gallons
at a cost of
$0.76 per gallon
Broadcast 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
St. Augustinegrass, Bermudagrass, Centipedegrass, Zoysiagrass, Buffalograss Safe Rate:
0.056 - 0.113 ounces per gallon
or
0.056 - 0.113 ounces per 1,000 sqft
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