Knotweed Weed Killer

Polygonum spp. Herbicide

Description of Knotweed (Polygonum spp.):
Knotweed, including Japanese and Bohemian knotweed, is shrub-like plant that grows 3 to 9 feet tall and spreads via rhizomes that can reach up to 15 feet away from the mother plant. It also reproduces by seed. It's prevalent in moist and partially shaded habitats.
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.75 - 1.8 fluid ounces per gallon
Cost Effectiveness:
Makes 11.11 - 26.67 gallons
at a cost of
$1.27 - $3.06 per gallon
Broadcast Treatment
Label Rate:
0.735 - 1.837 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 10890 - 27225 square feet
at a cost of
$1.25 - $3.12 per 1,000 sqft
Safe On
Bermudagrass, Zoysiagrass, Buffalograss Safe Rate:
0.75 - 1.5 fluid ounces per gallon
or
0.735 - 1.469 fluid ounces per 1,000 sqft
Annual Ryegrass, Bentgrass, Colonial, Kentucky Bluegrass, Bluegrass, Annual, Perennial Ryegrass, Tall Fescue, Red Fescue, Fine Fescue, Bentgrass Safe Rate:
1.1 - 1.8 fluid ounces per gallon
or
1.102 - 1.837 fluid ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.75 - 2.4 fluid ounces per gallon
Cost Effectiveness:
Makes 6.67 - 21.33 gallons
at a cost of
$1.08 - $3.46 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
$1.08 - $3.46 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
| More Info | View Label
Spot Treatment
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
0.161 - 0.321 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 99566 - 199131 square feet
at a cost of
$0.48 - $0.95 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.
Broadcast Treatment
Label Rate:
3.1 - 7.2 lbs per 1,000 sqft
Cost Effectiveness:
Covers 2500 - 5806 square feet
at a cost of
$5.15 - $11.95 per 1,000 sqft
Safe On
Bentgrass Safe Rate:
1.8 - 2.4 lbs per 1,000 sqft
Fine Fescue, Red Fescue Safe Rate:
1.8 - 3.6 lbs per 1,000 sqft
Buffalograss, Kentucky Bluegrass, Perennial Ryegrass Safe Rate:
1.8 - 4.8 lbs per 1,000 sqft
Bermudagrass, Bahiagrass, Centipedegrass, Kikuyu Grass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, Zoysiagrass Safe Rate:
1.8 - 7.2 lbs per 1,000 sqft
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.
Broadcast Treatment
per
Label Rate:
0.185 - 0.83 ounces per 1,000 sqft
Cost Effectiveness:
Covers 96386 - 432432 square feet
at a cost of
$0.16 - $0.70 per 1,000 sqft
Instructions:
To control these weeds, apply Prodiamine 65WDG in late summer, fall, or winter before weed seeds germinate.
Refer to the green safe rates table for the correct rate for your turf-type.
Safe On
Bentgrass Safe Rate:
0.185 - 0.37 ounces per 1,000 sqft
Fine Fescue Safe Rate:
0.185 - 0.42 ounces per 1,000 sqft
Buffalograss, Kentucky Bluegrass, Perennial Ryegrass Safe Rate:
0.185 - 0.55 ounces per 1,000 sqft
Bermudagrass, Bahiagrass, Centipedegrass, Kikuyu Grass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, Zoysiagrass Safe Rate:
0.36 - 0.83 ounces per 1,000 sqft
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.
Broadcast Treatment
Label Rate:
1.1 - 1.5 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 213333 - 290909 square feet
at a cost of
$0.42 - $0.58 per 1,000 sqft
Safe On
Bahiagrass, Kentucky Bluegrass, Bermudagrass, Tall Fescue, Fine Fescue, Red Fescue, Chewings Fescue, Hard Fescue, Perennial Ryegrass, Zoysiagrass Safe Rate:
1.1 - 1.5 fluid ounces per 1,000 sqft
Comment and Ask Questions About Knotweed