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Knapweed Weed Killer

Centaurea spp. Herbicide

Description of Knapweed (Centaurea spp.):
Knapweed, including Diffuse knapweed, Meadow knapweed, Russian knapweed, Spotted knapweed (Centaurea stoebe), and Squarrose knapweed, grow in a height of up to 6 feet. They contain a single pink to purple flowerhead and short hairs with black tips on the bottom bulb of the flower. It is a noxious weed.
According to the manufacturer approved labels: The following weed killer, applied at the listed application rates, will control Knapweed.
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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
$0.32 - $0.44 per 1,000 sqft
Safe On
No safe on treatments listed. Please, review the label or contact the merchant for more information.