Our 10 Best Prime Source Triad Tz Select Herbicide for 2026 [US]

March 2026 Edition

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1

Editor's Choice

9.7

Select Source

Select Source Triad TZ | 4-Way Combination Herbicide (Compare to T Zone) | Dependable Post-Emergent Broadleaf Weed Control (Quart)

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Editor's bottom line:

“This prime source triad tz select herbicide is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

DESCRIPTION: Excellent post-emergent activity with proven rapid and effective weed control performance for some of the toughest broadleaf weeds in turfgrass.
CONTROLS TOUGH BROADLEAF WEEDS: Dandelion, spurge, white clover, plantains, ground ivy, virginia buttonweed and wild violet; also labelled for the suppression of yellow nutsedge
ACTIVE INGREDIENTS: Contains four active ingredients: 2,4-D, Dicamba, Triclopyr, and Sulfentrazone
HOW IT WORKS: Triad TZ is quickly taken up by the leaves and stems of plants and weed growth ceases within hours. The weed control effects may be seen within a few hours to a few days after application. Weed death occurs in 1 to 4 weeks after application, depending on the application rate, sensitivity of the weed, and environmental conditions.
USE SITES: Residential lawns, athletic fields, golf courses, parks, industrial and institutional buildings, commercial sod production, fencerows, farmyards, and utility rights-of-way

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Picked by 397 people today

2

9.5

Select Source

Select Source Triad QC Select - 3-Way Herbicide with Quinclorac (Quart) | Controls Dandelion, Clover, Crabgrass, and Many Other Broadleaf and Grassy Weeds

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Main Highlights

3 ACTIVE INGREDIENTS: Combines 3 active ingredients (2,4-D, Dicamba, Quinclorac) to help eliminate hard to control weeds
USE SITES: residential and non-residential lawns and turf, athletic fields, roadsides, parks, golf turf (except tees, greens and collars)
POST-EMERGENT: Perfect late season clean up product for areas that didnt receive pre-emergent herbicide application in the spring
CRABGRASS CONTROL: Controls newly germinated 1- to 2-leaf crabgrass, to 1-tiller crabgrass and when crabgrass has matured to 5-tillers or greater
BROADLEAF WEED CONTROL: Presence of Quinclorac contributes to control of grassy weeds, is absorbed by the foliage and roots

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3

9.5

Lawn Synergy

Lawn Synergy Triad SELECT Broadleaf Herbicide Weed Killer - 32 oz

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Main Highlights

Combined power of three selective herbicides
Low odor formulation with flexible application rates
Application Rate: 1.1 to 1.5 oz. per 1,000 sq ft.
Active Ingredient: 30.89% 2,4-D 8.23% MCPA 2.77% dicamba
Lawn Types: Tall fescue, Bermuda, Zoysia, Kentucky bluegrass, Ryegrass
Target Pest: Bedstraw, Black medic, Buckhorn, Chicory, Chickweed, Clover, and Dandelion, Ground ivy, Heal-all, Henbit, Knotweed, Lambsquarters, and Lespedeza, Mallow, Morningglory, Peppergrass, Pigweed, Plantain, Poison ivy, Poison oak, Purslane, Ragweed, Sheep sorrel, Shepherdspurse, Speedwell, Spurge, Wild carrot, Wild garlic, Wild lettuce, Wild onion, Yarrow, and other broadleaf weeds.
Waiting Period to Seed: 3-4 weeks

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4

9.2

Primesource

Triad Select 1 Gallon

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Main Highlights

Triad Select employs a mixture of three selective yet potent herbicides in order to control a broad variety of broadleaf weeds that are labeled hard-to-kill such as clover, dandelion, and plantain. This has been demonstrated and confirmed through university trials to be an efficient and effective solution that can be administered to both cool and warm season grasses and is labeled for use on sod farms, turf-grass, and other non-crop industrial areas
This formula can be mixed in a tank with liquid iron materials or liquid fertilizers following the label for instructions and compatibility on fertilizer tank mix. It has flexible application rates and may be applied to non-cropland areas' woody brush
Target pests Bed-straw, Dandelion, Poison Oak, Black Medic, Mock, Mallow, Purslane, Buck-horn, Pepper-grass, Sheep Sorrel, Wild Carrot, Wild Onion, Wild Garlic and others
For use in Golf Courses, Sod Farms, Highways, Right-of-Ways, and similar Non-Crop areas, Ornamental Turf-grass (Residential & Commercial), Parks, Cemeteries and Athletic Fields
Active Ingredient 2,4-D 30.89% Dicamba, dimethylamine salt 2.77% MCPA, dimethylamine salt 8.23%

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Our Best Overall Choice

Best Choice

9.7

Select Source

Select Source Triad TZ | 4-Way Combination Herbicide (Compare to T Zone) | Dependable Post-Emergent Broadleaf Weed Control (Quart)

Free Shipping

Editor's bottom line:

“This is the best one we tested. In terms of quality, brand and price, we couldn't ask for more.”

Main Highlights

DESCRIPTION: Excellent post-emergent activity with proven rapid and effective weed control performance for some of the toughest broadleaf weeds in turfgrass.
CONTROLS TOUGH BROADLEAF WEEDS: Dandelion, spurge, white clover, plantains, ground ivy, virginia buttonweed and wild violet; also labelled for the suppression of yellow nutsedge
ACTIVE INGREDIENTS: Contains four active ingredients: 2,4-D, Dicamba, Triclopyr, and Sulfentrazone
HOW IT WORKS: Triad TZ is quickly taken up by the leaves and stems of plants and weed growth ceases within hours. The weed control effects may be seen within a few hours to a few days after application. Weed death occurs in 1 to 4 weeks after application, depending on the application rate, sensitivity of the weed, and environmental conditions.
USE SITES: Residential lawns, athletic fields, golf courses, parks, industrial and institutional buildings, commercial sod production, fencerows, farmyards, and utility rights-of-way

Show Price