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Rice Flatsedge Weed Killer

Cyperus iria Herbicide

Description of Rice Flatsedge (Cyperus iria):
Rice flatsedge is a sedge that is often mistakenly identified as one of the nutsedges such as yellow nutsedge. It's found mostly in the southern United States. The leaves are shiny, dark green, and linear in outline but tapering to a point. Like other sedges, the stems are triangular and they grow between 8 inches and 2 feet in height.
According to the manufacturer approved labels: The following 4 weed killers, applied at the listed application rates, will control Rice Flatsedge.
Pre-Emergent
Post-Emergent
| More Info | View Label
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
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:
4.3 lbs per 1,000 sqft
Cost Effectiveness:
Covers 5000 square feet
at a cost of
$6.74 per 1,000 sqft
Safe On
Centipedegrass, Chewings Fescue, Fine Fescue, Hard Fescue, Kentucky Bluegrass, Perennial Ryegrass, Red Fescue, and Tall Fescue
Safe Rate:
4.3 lbs per 1,000 sqft
CertainLabel™ Calculator for Scotts Turf Builder Starter Food for New Grass Plus Weed Preventer & these grass types
Ortho 0841010 Dial N Spray Hose End Sprayer
4,432
$
12.37
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
Scotts 20220 Turf Builder Southern Lawn FoodFL: 5,000 sq. ft, Florida Ferti...
864
$
12.83
$18.49
Save 31%
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:
1.1 - 1.47 fluid ounces per 1,000 sqft
Cost Effectiveness:
Covers 217800 - 290400 square feet
at a cost of
$1.18 - $1.58 per 1,000 sqft
Instructions:
The lower rate is recommended for spring if spring transition is expected within a month. Higher rates may be used if spring transition is at least 4-6 weeks away or has already occurred and also for fall.
Safe On
Bermudagrass, Centipedegrass, St. Augustinegrass, and Zoysiagrass
Safe Rate:
1.1 - 1.47 fluid ounces per 1,000 sqft
CertainLabel™ Calculator for Coastal & these grass types

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