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Western Ironweed Weed Killer

Vernonia baldwinii Herbicide

Description of Ironweed, Western (Vernonia baldwinii):
Bright magenta flowers, growing up to 3 feet tall, that bloom in late summer to early fall. It is a great way to attract pollinators because it serves as a late-season nectar source. he Xerces Society for Invertebrate Conservation recognizes this species as having special value because of the large amount of native bees that forage on its flowers. The caterpillars of some moths feed on Ironweed species. Bitter to the taste, so herbivorous animals like deer and cattle will avoid consuming it. This species is found most often on the western side of the Mississippi River valley. Western Ironweed is not picky about soil types, thriving in wet, dry, and rocky conditions. This plant spreads vigorously by rhizomes, so is most appropriate in large prairies or meadows rather than use in home gardens.
According to the manufacturer approved labels: The following 3 weed killers, applied at the listed application rates, will control Western Ironweed.
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
of
Label Rate:
1 - 1.5% mixture
Cost Effectiveness:
Makes 16.667 - 25 gallons
at a cost of
$0.88 - $1.32 per gallon
Blanket Treatment
Label Rate:
1.47 - 2.94 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 10890 - 21780 square feet
at a cost of
$1.01 - $2.02 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.
Blanket Treatment
Label Rate:
0.16 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 199131 square feet
at a cost of
$0.48 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
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.

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