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Purple Nutsedge Weed Killer

Cyperus rotundus Herbicide

Description of Nutsedge, Purple (Cyperus rotundus):
Purple nutsedge is a type of sedge that is very common in the lawn. It resembles normal grass, but usually grows much faster and can be seen reaching high above the otherwise even turfgrass. Purple nutsedge is called purple due to the nutlets at the top of the plant being that color.
According to the manufacturer approved labels: The following 9 weed killers, applied at the listed application rates, will control Purple Nutsedge.
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.476 ounces per gallon
Cost Effectiveness:
Makes 1 gallons
at a cost of
$11.00 per gallon
Blanket Treatment
per
Label Rate:
0.476 ounces per 1,000 sqft
Cost Effectiveness:
Covers 1000 square feet
at a cost of
$11.00 per 1,000 sqft
Safe On
Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Centipedegrass, Fine Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, and Zoysiagrass
Safe Rate:
0.476 ounces per gallon
or
0.476 ounces per 1,000 sqft
CertainLabel™ Calculator for Sedgehammer 5% Halosulfuron-methyl & these grass types
Scotts 20220 Turf Builder Southern Lawn FoodFL: 5,000 sq. ft, Florida Ferti...
785
$
14.35
$18.49
Save 22%
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.
Blanket Treatment
Label Rate:
6.4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$2.88 per 1,000 sqft
Safe On
Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Carpetgrass, Centipedegrass, Fine Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Roughstalk Bluegrass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, and Zoysiagrass
Safe Rate:
6.4 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Ortho Nutsedge Killer Ready-To-Spray & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.016 - 0.032 ounces per gallon
Cost Effectiveness:
Makes 40.949 - 81.899 gallons
at a cost of
$0.82 - $1.63 per gallon
Blanket Treatment
per
Label Rate:
0.008 - 0.015 ounces per 1,000 sqft
Cost Effectiveness:
Covers 85800 - 171600 square feet
at a cost of
$0.39 - $0.78 per 1,000 sqft
Safe On
Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Centipedegrass, Fine Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, and Zoysiagrass
Safe Rate:
0.016 - 0.032 ounces per gallon
or
0.008 - 0.015 ounces per 1,000 sqft
CertainLabel™ Calculator for Sedgehammer 75% Halosulfurion-methyl & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
2.5 fluid ounces per gallon
Cost Effectiveness:
Makes 9.6 gallons
at a cost of
$3.12 per gallon
Blanket Treatment
Label Rate:
4 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 6000 square feet
at a cost of
$4.99 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.
Blanket Treatment
Application Interval:
14 - 20 days
per
Label Rate:
0.075 - 0.23 ounces per 1,000 sqft
Cost Effectiveness:
Covers 34783 - 106667 square feet
at a cost of
$1.05 - $3.23 per 1,000 sqft
Instructions:
See green safe rates table to determine rates for specific turfgrasses. Two applications of Blindside Herbicide 14 to 20 days apart may increase control over a single application.
Safe On
Bermudagrass, Centipedegrass, St. Augustinegrass, and Zoysiagrass
Safe Rate:
0.15 - 0.23 ounces per 1,000 sqft
CertainLabel™ Calculator for Blindside & these grass types
Kentucky Bluegrass and Tall Fescue
Safe Rate:
0.075 - 0.15 ounces per 1,000 sqft
CertainLabel™ Calculator for Blindside & these grass types
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.
Blanket Treatment
Label Rate:
0.09 - 0.28 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 21818 - 65217 square feet
at a cost of
$1.07 - $3.21 per 1,000 sqft
Instructions:
Rates lower than 12 fl oz/acre (0.275 fl. oz/1,000 sq. ft.) will generally control sedges for at least 60 days. A rate of 12 fl oz/acre (0.275 fl oz/1,000 sq. ft.) will provide approximately 75% control for at least 60 days.
Good spray coverage is needed for optimum control of sedges. Temporary discoloration of some turfgrass species may result from use of surfactant. Use of surfactants is not recommended.
Safe On
Bahiagrass, Bermudagrass, Buffalograss, Carpetgrass, Centipedegrass, Kikuyu Grass, Seashore Paspalum, St. Augustinegrass, and Zoysiagrass
Safe Rate:
0.18 - 0.28 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Dismiss & these grass types
Fine Fescue, Kentucky Bluegrass, Perennial Ryegrass, and Tall Fescue
Safe Rate:
0.09 - 0.18 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Dismiss & these grass types
Bentgrass
Safe Rate:
0.09 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Dismiss & Bentgrass
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.008 ounces per gallon
Cost Effectiveness:
Makes 147.654 gallons
at a cost of
$0.67 per gallon
Blanket Treatment
per
Label Rate:
0.017 ounces per 1,000 sqft
Cost Effectiveness:
Covers 72600 square feet
at a cost of
$1.36 per 1,000 sqft
Safe On
Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Centipedegrass, Kentucky Bluegrass, Kikuyu Grass, Seashore Paspalum, St. Augustinegrass, and Zoysiagrass
Safe Rate:
0.014 - 0.023 ounces per gallon
or
0.029 - 0.046 ounces per 1,000 sqft
CertainLabel™ Calculator for Certainty & these grass types
Pre-Emergent
Post-Emergent
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Spot Treatment
Label Rate:
0.4 - 1 fluid ounces per gallon
Cost Effectiveness:
Makes 640 - 1599.999 gallons
at a cost of
$0.12 - $0.30 per gallon
Instructions:
For use on golf courses, sod farms, and highway rights-of-way only.
Blanket Treatment
Label Rate:
0.4 - 1 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 640000 - 1599999 square feet
at a cost of
$0.12 - $0.30 per 1,000 sqft
Instructions:
For use on golf courses, sod farms, and highway rights-of-way.
Safe On
Kentucky Bluegrass, Perennial Ryegrass, and Tall Fescue
Safe Rate:
0.4 - 1 fluid ounces per gallon
or
0.4 - 1 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Target 6 Plus MSMA & these grass types
Bermudagrass and Zoysiagrass
Safe Rate:
0.4 - 2 fluid ounces per gallon
or
0.4 - 2 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Target 6 Plus MSMA & these grass types
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:
4 lbs per 1,000 sqft
Cost Effectiveness:
Covers 500 square feet
at a cost of
$55.16 per 1,000 sqft
Safe On
Bahiagrass, Bentgrass, Bermudagrass, Buffalograss, Centipedegrass, Fine Fescue, Kentucky Bluegrass, Kikuyu Grass, Perennial Ryegrass, Seashore Paspalum, St. Augustinegrass, Tall Fescue, and Zoysiagrass
Safe Rate:
4 lbs per 1,000 sqft
CertainLabel™ Calculator for Vexis Granular & these grass types

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