Giant Ragweed Weed Killer

Ambrosia trifida Herbicide

Description of Ragweed, Giant (Ambrosia trifida):
Giant ragweed is actually a member of the sunflower family. It can reach heights between 3 and 16 feet. It's easily found along fence rows of crops and pastures. Its pollen is one of many causes of late-season hay fever, making it insufferable for those with allergies.

Control Options for Ragweed, Giant

Legend:
Control
Suppression
No Control
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:
0.09 - 0.16 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 199131 - 348480 square feet
at a cost of
$0.30 - $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
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Spot Treatment
Label Rate:
0.48 ounces per gallon
Cost Effectiveness:
Makes 1 gallons
at a cost of
$14.18 per gallon
Broadcast Treatment
per
Label Rate:
0.48 ounces per 1,000 sqft
Cost Effectiveness:
Covers 1000 square feet
at a cost of
$14.18 per 1,000 sqft
Safe On
Bentgrass, Bermudagrass, Fine Fescue, Perennial Ryegrass, Kentucky Bluegrass, Tall Fescue, Bahiagrass, Centipedegrass, Kikuyu Grass, Seashore Paspalum, Zoysiagrass, Buffalograss, St. Augustinegrass Safe Rate:
0.48 ounces per gallon
or
0.48 ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.02 - 0.03 ounces per gallon
Cost Effectiveness:
Makes 40.95 - 81.9 gallons
at a cost of
$0.88 - $1.76 per gallon
Broadcast Treatment
per
Label Rate:
0.01 - 0.02 ounces per 1,000 sqft
Cost Effectiveness:
Covers 85800 - 171600 square feet
at a cost of
$0.42 - $0.84 per 1,000 sqft
Safe On
Bentgrass, Bermudagrass, Fine Fescue, Perennial Ryegrass, Kentucky Bluegrass, Tall Fescue, Bahiagrass, Centipedegrass, Kikuyu Grass, Seashore Paspalum, Zoysiagrass, Buffalograss, St. Augustinegrass Safe Rate:
0.02 - 0.03 ounces per gallon
or
0.01 - 0.02 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
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