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Sedgehammer Application Directions

posted this on Oct 8, 2016

GENERAL INFORMATION

 

SEDGEHAMMER is a selective herbicide for post-emergence control of sedges such as purple and yellow nutsedge in established lawns,

ornamental turfgrass, and landscaped areas. SEDGEHAMMER may be applied to commercial and residential turf and on other non-crop

sites including: airports, cemeteries, fallow areas, golf courses, landscaped areas, public recreation areas, residential property, roadsides,

school grounds, sod or turf seed farms, sports fields, landscaped areas with established woody ornamental, fairgrounds, race tracks, tennis

courts, campgrounds and rights-of-way.

 

TURFGRASSES

 

When applied as directed under the conditions described, the following established turfgrasses are tolerant to this product:

 

Cool-Season Grasses

 

Bentgrass, creeping Fescue, fine

 

Agrostis stolonifera Festuca arundinacea

 

Bluegrass, Kentucky Fescue, tall

 

Poa pratensis Festuca arundinacea

 

Ryegrass, perennial

 

Lolium perenne

 

Warm-Season Grasses

 

Bahiagrass Seashore paspalum

 

Paspalum notatum Paspalum vaginatum

 

Bermudagrass St. Augustinegrass

 

Cynodon dactylon Stenotaphrum secundadatum

 

Centipedegrass Zoysiagrass

 

Eremochloa ophiuroides Zoysia japonica

 

Kikuyugrass

 

Pennisetum clandestinum

 

ESTABLISHED WOODY ORNAMENTALS IN LANDSCAPED AREAS

 

This product may be applied at recommended rates as a post-directed spray around any established woody ornamental species in

landscaped areas. For transplanted woody ornamentals, allow three months after transplanting before applying this product.

NOTE: Avoid contact of this product to leaves of desirable plants since foliar injury, discoloration or death may result.

 

FALLOW TREATMENTS

 

This product may be used on fallow areas prior to the establishment of turfgrass or woody ornamental plants. Allow 4 weeks between

application and seeding or sodding of turfgrass, or transplanting woody ornamentals.

 

WEEDS CONTROLLED

 

When applied post-emergence, this product will control the following weeds:

Purple nutsedge Yellow nutsedge

 

Cyperus roiundus Cyperus esculentus

 

When applied postemergence, this product will suppress the following weed:

Kyllinga

spp.

APPLICATION DIRECTIONS Rates and timing of Application Broadcast Applications: For post-emergence control of purple or yellow nutsedge found in established turfgrass, apply 2/3 to 1 1/3 ounces by weight of this product per acre (0.031 to 0.062 pound active ingredient per acre) after nutsedge has reached the 3 to 8 leaf stage of growth. Use the lower rate in light infestations and the higher rate in heavy infestations. A second treatment may be required 6 to 10 weeks after the initial treatment. As a sequential treatment, when new purple or yellow nutsedge plants have reached the 3 to 8 leaf stage of growth, apply 2/3 to 1 1/3 ounces by weight of this product per acre (0.031 to 0.062 pound active ingredient per acre). Use the lower rate in light infestations and the higher rate in heavy infestations. No more than 4 applications can be made with the total use rate not exceeding (5 1/3 ounces by weight of this product (0.25 pounds active ingredient) per acre per use season. Use 0.25-0.5 percent v/v of a nonionic surfactant (1-2 quarts per 100 gallons of spray solution) for broadcast applications. For high volume applications, DO NOT exceed 1 quart of surfactant per acre. Use only nonionic surfactants that contain at least 80 percent active material. Spot Treatments: Mix 0.9 gram of this product in one or two gallons of water to treat 1000 square feet. Add 2 teaspoons (1/3 fluid ounce) of nonionic surfactant per gallon of water. INSTRUCTIONS FOR WATER DISPERSIBLE GRANULE IN 1.3 OUNCE BOTTLE: Mix 0.9 gram of this product (using the measuring scoop provided) in one or two gallons of water to treat 1000 square feet. Add 2 teaspoons (1/3 fluid ounce) of nonionic surfactant per gallon of water. Ensure the product is measured as a level scoop and not rounded. INSTRUCTIONS FOR WATER DISPERSIBLE GRANULE PREMEASURED IN WATER SOLUBLE BAG: Add one (1) water soluble bag of this product per one or two gallons of water in a hand-held or backpack sprayer to treat 1000 square feet. Add 2 teaspoons (1/3 fluid ounce) of a nonionic surfactant per gallon of spray solution. Mix or shake thoroughly for at least two minutes to ensure that the water soluble bag and ingredients are completely dispersed. Occasionally shake the spray solution while spraying to ensure that it remains thoroughly mixed. Spray the target weeds thoroughly and wet the entire leaf surface of the undesirable plants. DO NOT exceed the recommended amount of surfactant due to the potential for turf injury at higher rates. Refer to the surfactant label and observe all precautions, mixing and application instructions. TANK MIX WITH GLYPHOSATE HERBICIDE IN LANDSCAPED AND FALLOW AREAS AND TURF RENOVATION. This product may be tank mixed with Glyphosate herbicide for application as a directed spray in landscaped or fallow areas.

 

 

APPLICATION EQUIPMENT AND INSTRUCTIONS

 

Calibrate application equipment prior to application of this product. Application should be uniform and of sufficient volume to avoid streaking

or skips. Avoid excessive overlap of the spray.

 

USE PRECAUTIONS

 

For optimum results, do not mow turf for 2 days before or 2 days after application.

This product is effective if no rainfall occurs within 3 hours, but best result are obtained with no rainfall or irrigation for at least 4 hours.

This product may be used on seeded, sodded, or sprigged turfgrass that is well established. Allow the turf to develop a good root system

and uniform stand before application.

Treated areas may be overseeded with annual or perennial ryegrass or bermudagrass, 2 weeks after application.

Color plants or herbaceous ornamentals may be injured when transplanted into landscaped areas treated with SEDGEHAMMER.

 

Avoid application of SEDGEHAMMER when turfgrass or nutsedge is under stress since turf injury and poor nutsedge control may

result.

 

Do not apply as an over-the-top spray to desirable flowers, ornamentals, vegetables, shrubs or trees.

Do not apply this product to golf course putting greens.

Do not apply this product through any type of irrigation system. Do not apply this product by air.

 

FOR USE ON ROADSIDES, RIGHTS OF WAY, TANK FARMS, LUMBERYARDS, FUEL

STORAGE AREAS, FALLOW LAND, AND FENCE ROWS FOR HORSETAIL CONTROL

 

This product may be applied at recommended rates as a post-emergence spray on roadsides and other industrial sites. When applied postemergence,

this product will suppress the following weeds: cocklebur, common sunflower, common ragweed, giant ragweed, pigweed, and

velvetleaf. This product may be tank mixed with Glyphosate herbicide.

 

Control of Horsetail (

Equisetum arvense)

For post-emergence control of horsetail (

1000 square feet (0.125 pound active ingredient per acre) after horsetail has leafed out. This rate of product will control horsetail that is less

than 6 inches tall and suppress horsetail that is greater than 6 inches tall.

Herbicide symptoms are likely to show within 2 weeks as a necrotic ring at the base of the plant, even though the leaves and stems remain

green and a deep leathery green in color.

Equisetum arvense), apply 2 2/3 ounces of this product per acre, or 1.8 grams of this product perSTO

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