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NUFARM

Cool Power Selective Herbicide

Cool Power Selective Herbicide is a reliable selective broadleaf killer with three modes of action designed for effective control of a variety of broadleaf nuisances in cool weather conditions.
As low as $36.50
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Cool Power Herbicide Product Page
Min : 36.5 - Max : 279.06
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Price as of
10/09/25
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Cool Power Selective Herbicide, manufactured by Nufarm, is a selective broadleaf killer designed for cool weather conditions, showcasing its effectiveness during winter weed control, dormant warm season turf care, and early-season applications in transition zones and cool climate regions.

The expertly crafted formulation of Cool Power Selective Herbicide combines three potent active ingredients: MCPA, triclopyr, and dicamba. This triple-action approach ensures the eradication of a wide spectrum of broadleaf weeds.

Cool Power Selective Herbicide isn't bound by traditional spray seasons. It offers maximum weed control power in early spring and fall, extending your window of opportunity for effective weed management and is versatile enough for spot treatment under warmer conditions. Its adaptability ensures you have a solution for various scenarios.

Tools Needed

Most conventional liquid pesticide plant sprayers can be used to apply Cool Power Selective Herbicide such as a hose-end sprayer, backpack sprayer, or handheld pump sprayer. For larger applications, a spray rig may be used.

How to Use

  • Step 1: Determine how much Cool Power Selective Herbicide to use by measuring the square footage of the treatment area. To calculate the surface area of water, measure the length and width in feet and volume of water body (length X width X depth = surface area of water). To do this, measure the length and width of the treatment area in feet then multiply them together (length X width = square footage). For ornamental lawns and turf applications, apply Cool Power Selective Herbicide at the rate of 2-1/2 to 3-1/2 pints in 20 to 240 gallons of water per acre, or 0.91 to 1.29 fl. oz. in 0.5 to 5.5 gallons of water per 1,000 square feet. When treating warm season turf that is completely dormant, the higher rates may be used. When treating warm season turf that is actively growing, use a lower rate. Avoid applications to warm season turf during transition from dormancy to green-up or green-up to dormancy.
  • Step 2: In a large container, add half of the required amount of water and then add the appropriate amount of Cool Power Selective Herbicide to the larger container. Fill the container the rest of the way with the remaining half of water. Mix well and then pour into the sprayer tank.
  • Step 3: Spray targeted weeds and brush until wet with Cool Power Selective Herbicide. If treating bodies of water that are approved by the product label, only spray areas where targeted weeds are growing.

Where to Use

Cool Power Selective Herbicide can be used for use on cemeteries, golf courses, parks, ornamental turf lawns, roadsides, and similar turf areas.

When to Use

Cool Power Selective Herbicide should be used as a post-emergent during periods of weed growth and when cooler weather is present in early spring and late fall.

Safety Information

Cool Power Selective Herbicide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing and applying this product.

Do not allow people or pets to enter the treated area until sprays have dried.

Special Considerations

When using Cool Power Selective Herbicide, do apply to centipede or St. Augustine grasses unless conditions are tolerable, otherwise damage may occur. Avoid drift of spray mist to vegetables, flowers, ornamental plants, shrubs, trees and other desirable plants. Do not pour spray solutions near desirable plants.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions32 Ounce: AK, HI, IN, MA, ME, NH, VT
2.5 Gallon: AK, AR, CA, HI, IN, MA, TX, VT, WA
BrandNUFARM
Keith's Pro Tips"When using herbicides like Cool Power Selective Herbicide, use wetting agents or surfactants like Nanotek to increase effectiveness and efficacy."
Product DrawbacksCool Power Selective Herbicide is not ideal for St. Augustine grasses and should be limited to spot treatments if under 80 degrees Fahrenheit.
Target PestsBlack medic, Buckhorn, Chickweed, Clover, Dandelion, Dock, English daisy, Florida pusley, Ground ivy, Healall, Henbit, Knotweed, Kochia, Lespedeza, Mallow, Morningglory, Oxalis, Pigweed, Plantain, Ragweed, Sowthistle, Spurge, Thistle, Toadflax, Veronica, Wild geranium, Wild violet, Woodsorrel, Yarrow
Application EquipmentBackpack Sprayer
Application MethodsBroadcast Spray
Active IngredientMCPA 56.14% Triclopyr 5.0% Dicamba 3.6%
Product TypeHerbicide
FormulationEmulsifiable Concentrate (EC)
Application RateFor ornamental lawns and turf applications, apply Cool Power Selective Herbicide at the rate of 2-1/2 to 3-1/2 pints in 20 to 240 gallons of water per acre, or 0.91 to 1.29 fluid ounces in 0.5 to 5.5 gallons of water per 1,000 square feet, to control weeds growing in turf planted to Bluegrass, Fescue, Rye, Bent (excluding golf greens and tees), Bahia, Bermuda and Zoysia.
Shelf LifeCool Power Selective Herbicide may last up to 3 years when stored properly in a cool, dry place.
YieldOne gallon of Cool Power Selective Herbicide covers up to 3.2 acres.
Use SitesOutdoors
Time to KillResults will yield within 14-21 days.
Comparable ProductsAlligare Triclopyr 4E
Use Caution WithBentgrass, Kikuyugrass, St Augustine, Zoysiagrass
Incompatible Home SidingBrick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl
EPA Registration #228-317
More Information
Restricted Use No
Shipping Restrictions AK, HI, MA
Availability Online
Signal Word CAUTION
Keith's Pro Tip "When using herbicides like Cool Power Selective Herbicide, use wetting agents or surfactants like Nanotek to increase effectiveness and efficacy."
Time to Kill Results will yield within 14-21 days.
Chemical Type Herbicide
Formulation Emulsifiable Concentrate (EC)
Application Methods Broadcast Spray
Product Drawbacks Cool Power Selective Herbicide is not ideal for St. Augustine grasses and should be limited to spot treatments if under 80 degrees Fahrenheit.
Active Ingredient MCPA 56.14% Triclopyr 5.0% Dicamba 3.6%
Application Equipment Backpack Sprayer
Mix Rate For ornamental lawns and turf applications, apply Cool Power Selective Herbicide at the rate of 2-1/2 to 3-1/2 pints in 20 to 240 gallons of water per acre, or 0.91 to 1.29 fluid ounces in 0.5 to 5.5 gallons of water per 1,000 square feet, to control weeds growing in turf planted to Bluegrass, Fescue, Rye, Bent (excluding golf greens and tees), Bahia, Bermuda and Zoysia.
Use Sites Outdoors
Yield One gallon of Cool Power Selective Herbicide covers up to 3.2 acres.
EPA Registration No. 228-317
Shelf Life Cool Power Selective Herbicide may last up to 3 years when stored properly in a cool, dry place.
Comparable Products Alligare Triclopyr 4E
Children or pets? No
Property Characteristics None

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