Pennslyvania Smartweed Weed Killer

Polygonum pensylvanicum Herbicide

Description of Smartweed, Pennslyvania (Polygonum pensylvanicum):
Pennslyvania smartweed has long, lance-like leaves and grows 1 to 4 feet in height. The flowers are approximately 1/8 inch in length and are a light pink color. The leaves are sparsely covered in short hairs.

Control Options for Smartweed, Pennslyvania

Legend:
Control
Suppression
No Control
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
1 - 1.5 fluid ounces per gallon
Cost Effectiveness:
Makes 21.33 - 32 gallons
at a cost of
$0.50 - $0.76 per gallon
Broadcast Treatment
Label Rate:
1.1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 29040 square feet
at a cost of
$0.56 per 1,000 sqft
Safe On
Annual Ryegrass, Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Carpetgrass, Centipedegrass, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Red Fescue, St. Augustinegrass, Tall Fescue, Zoysiagrass Safe Rate:
1 - 1.5 fluid ounces per gallon
or
1.1 fluid ounces per 1,000 sqft
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
$0.78 - $2.50 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
$0.78 - $2.50 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:
0.06 ounces per gallon
Cost Effectiveness:
Makes 177.19 gallons
at a cost of
$0.68 per gallon
Broadcast Treatment
per
Label Rate:
0.06 ounces per 1,000 sqft
Cost Effectiveness:
Covers 177187 square feet
at a cost of
$0.68 per 1,000 sqft
Safe On
St. Augustinegrass, Bermudagrass, Centipedegrass, Zoysiagrass, Buffalograss Safe Rate:
0.06 - 0.11 ounces per gallon
or
0.06 - 0.11 ounces per 1,000 sqft
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:
0.07 - 0.11 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 278784 - 464640 square feet
at a cost of
$0.22 - $0.37 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
No spot treatment rates listed. Please, review the label or contact the merchant for more information.
Broadcast Treatment
Label Rate:
6.4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$3.00 per 1,000 sqft
Safe On
Bentgrass, Tall Fescue, Fine Fescue, Kentucky Bluegrass, Perennial Ryegrass, Bermudagrass, St. Augustinegrass, Zoysiagrass, Centipedegrass, Buffalograss, Bahiagrass, Kikuyu Grass, Seashore Paspalum, Bluegrass, Roughstalk, Carpetgrass Safe Rate:
6.4 fluid ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.63 per gallon
Broadcast Treatment
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.70 - $1.39 per 1,000 sqft
Safe On
St. Augustinegrass Safe Rate:
0.09 fluid ounces per 1,000 sqft
Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue Safe Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Perennial Ryegrass, Fine Fescue, Red Fescue, Chewings Fescue, Hard Fescue Safe Rate:
0.11 fluid ounces per 1,000 sqft
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
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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:
0.73 - 1.84 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
0.73 - 1.47 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
1.1 - 1.84 fluid ounces per 1,000 sqft
Pre-Emergent
Post-Emergent
| More Info | View Label
Spot Treatment
Label Rate:
0.08 fluid ounces per gallon
Cost Effectiveness:
Makes 96 gallons
at a cost of
$0.68 per gallon
Broadcast Treatment
Label Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 43560 - 87120 square feet
at a cost of
$0.75 - $1.49 per 1,000 sqft
Safe On
St. Augustinegrass Safe Rate:
0.09 fluid ounces per 1,000 sqft
Chewings Fescue, Hard Fescue, Perennial Ryegrass, Fine Fescue, Red Fescue Safe Rate:
0.11 fluid ounces per 1,000 sqft
Kentucky Bluegrass, Centipedegrass, Buffalograss, Tall Fescue Safe Rate:
0.11 - 0.18 fluid ounces per 1,000 sqft
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