Best Southern Ag Weed Killers in 2026

Daisy
Last Updated: Aug 13, 2026

At a Glance: Our Top Picks for Southern Ag Weed Killers

Dow AgroSciences RTU548 Tordon RTU Herbicide QT Size
#TOP1
Dow Agrosciences Rtu548 Tordon Rtu Herbicide Qt Size
9.7
PM SCORE
Tordon Rtu Specialty Herbicide 1 Qt Kills Woody Plants And Trees Not For: Ca;ny"
#TOP2
Tordon Rtu Specialty Herbicide 1 Qt Kills Woody
9.7
PM SCORE
Dow AgroSciences Grazon Next HL 2 Gallon
#TOP3
Dow Agrosciences Grazon Next Hl 2 Gallon
9.6
PM SCORE

* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.

Summary of the Best Southern Ag Weed Killers of 2026

#TOP1
Best For Dow

Dow Agrosciences Rtu548 Tordon Rtu Herbicide Qt Size

DOW AGROSCIENCES
TORDON RTU QT
3.00 X 3.00 X 9.00 Inches
2.40 pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
JandSProducts 9.93

Features

Effective: Kills cut stumps on fence lines&non-cropland areas. Control unwanted trees by cut surface treatments in forest&non-crop areas such as fence rows, roadsides&rights-of-way

Tordon Rtu Specialty Herbicide 1 Qt Kills Woody Plants And Trees Not For: Ca;Ny"

DOW AGROSCIENCES
APS-6526976353062
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
ePest 9.80

Features

NOT For Sale In: AK, CA, DC, FL, RI, PR

Effective: Kills cut stumps on fence lines&non-cropland areas. Control unwanted trees by cut surface treatments in forest&non-crop areas such as fence rows, roadsides&rights-of-way

Superior Results: Keeps more than 20 woody species at bay. It translocates into the tree's root system to stop resprouts

Easy-to-use: No-freeze formulation keeps the product flowing freely. The blue dye in lets you easily keep track of treated stumps

Instruction: No mixing or measuring is required, and you can use it nearly year-round. Just pour it into the convenient squirt bottle applicator, and go to work

Ideal for in-season and off-season brush control

#TOP3
Best For Dow

Dow Agrosciences Grazon Next Hl 2 Gallon

DOW AGROSCIENCES
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Chemical Warehouse 6.53

Features

#TOP4
Best For Dow

Dow Agrosciences Tordon Rtu Herbicide 12 (32 Oz Bottles)

DOW AGROSCIENCES
2.08 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Dibbs Farms 9.69

Features

Not for sale & Ship to: AK, CA, CT, DC, FL, NY, RI.

Effective: Kills cut stumps on fence lines&non-cropland areas. Control unwanted trees by cut surface treatments in forest&non-crop areas such as fence rows, roadsides&rights-of-way

Superior Results: Keeps more than 20 woody species at bay. It translocates into the tree's root system to stop resprouts

Easy-to-use: No-freeze formulation keeps the product flowing freely. The blue dye in lets you easily keep track of treated stumps

Instruction: No mixing or measuring is required, and you can use it nearly year-round. Just pour it into the convenient squirt bottle applicator, and go to work

#TOP5
Best For Dow

Dow Agrosciences Spike 20P Broadleaf & Brush Herbicide - 5 Lb

DOW AGROSCIENCES
5.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Keystone Pest Solutions 9.79

Features

pike 20P Specialty Herbicide works from the roots up to control brush. It provides a premium long-lasting control on the toughest brush species such as: big sage, shinnery, other oaks, tarbush, and creosote bush.

#TOP6
Best For Dow

Dow Agrosciences Pathfinder Ii Specialty Herbicide

DOW AGROSCIENCES
26.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Keystone Pest Solutions 9.78

Features

Convenient, ready-to-use herbicide. Pathfinder II herbicide requires no mixing and can be used for basal bark and cut-stump treatments

Expansive. Flexible control. Pathfinder II controls more than 80 woody plant species and is ideal for low-profile individual plant treatments, allowing for use year-round

Nonpetroleum formulation. The diluent in Pathfinder II is derived from a naturally occurring nonpetroleum substance with a low odor

Use sites: Fencerows, Landscaped Areas, Non-irrigation Ditchbanks, Pastures, Pipelines, Railroads, Rangeland, Roadsides, and Utility

Delivers effective weed control against Australian-pine, Autumn-olive, Beech, Birch, Blackberry, Box Elder, Cherry, Chinaberry, Cottonwood, Dogwood, Elm, Gallberry, Hickory, Locust, Maple, Mesquite, Oak, Pine, Poplar, and Sweetgum

#TOP7
Best For Dow

Dow Agrosciences Scythe Herbicide - 2.5 Gallon

DOW AGROSCIENCES
2286
9.15 X 6.73 X 14.32 Inches
19.78 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
DIY Pest Control 9.84

Features

Pelargonic Acid - 57.0% Related Fatty Acids - 3.0%

Scythe Herbicide is not a residual control product. Additional treatments will be required for new

For use in Ornamental plants in landscape and Turf.

Will only control actively growing emerged green vegetation. It provides burndown of both annual

#TOP8
Best For Dow

Dow Agrosciences Dimension 2Ew Crabgrass Herbicide - 2.5 Gallon

DOW AGROSCIENCES
1495
7.15 X 14.35 X 9.05 Inches
22.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lawn & Pest Control Supply 9.77
#TOP9
Best For Dow

Dow Agrosciences Turflon Ester Ultra Herbicide 1 Gallon

DOW AGROSCIENCES
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Redwood Chemical Products 5.27

Features

Gallon Jug

Active Ingredients: Triclopyr - 60.45%

NOT FOR SALE TO: AK, HI

Target pests: Bull thistle, Canada thistle, Chicory, Clover, Dandelion, Goldenrod, Ground ivy, Lambsquarters, Lespedeza, Kikuyugrass, and Plantain and others

For use in: Tall Fescue, Perennial Ryegrass,and Perennial Bluegrass in Sod Farms and Golf Courses

Application: 8 - 16 oz. per acre 3/8 - 3/4 oz. per 1,000 sq. ft. (Spot Treatment)

#TOP10
Best For Dow

Dow Agrosciences Garlon 4 Ultra Herbicide 2.5 Gl

DOW AGROSCIENCES
26.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Keystone Pest Solutions 9.78

Features

Not for sales at CA, CT, NY, AK, HI, PR, WA

Ash, Aspen, Beech, Birch, Blackberry, Broom, Buckthorn, Cherry,Dogwood, Elm, Fir, Hickory, Kudzu, Locust, Maple, Oak, Pine, Poplar, Saltcedar, Sweetgum.

Non-irrigation Ditchbanks, Forests, Industrial Sites, Pipelines, Railroads, Roadsides, Telephone Communication Lines, Utility, Wildlife Openings, Industrial Manufacturing Sites.

Reduced environmental impact.Proven brush control.Flexible application window. Garlon 4 Ultra Herbicide uses a plant-based solvent that follows all of the new environmental regulations that make other petroleum-based products unusable. It is also less toxic to non-target plants and has a milder smell than other herbicides.

#TOP11
Best For Dow

Corteva - Gallery 75 Df Specialty Herbicide Isoxaben 75% Not For Sale To: New York"

DOW AGROSCIENCES
APS-087491491968
2.25 X 13.75 X 3.25 Inches
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Lawn & Pest Control Supply 9.77

Features

Gallery specialty herbicide provides season-long control of more than 90 species of broadleaf weeds.

Gallery provides superior preemergence broadleaf weed control with best-in-class ornamental and turf safety

It's one of the most effective tools against broadleaf weeds

#TOP12
Best For Dow

Lontrel Turf And Ornamental Herbicide

DOW AGROSCIENCES
2.00 Pounds
SELLER SELLER SCORE AMAZON FULFILLED PRIME FREE SHIPPING
Pest Control Products Depot 5.42

Features

32 oz Bottle

Not for Sale to: NY

Active Ingredients: Clopyralid 40.9%

Target pests: Black medic, Bull Thistle, Clover, Dandelion, Daisy, Groundsel, Horseweed, Kudzu, Nightshade, Plantain, Ragweed, Thistles, Wild buckwheat and others

Application: 1/10 - 1/2 oz. per 1,000 sq. ft. 1/4 - 1 1/3 pints per acre * Use a Surfactant to Increase Effectiveness

Top 10 weed killers Brands on Amazon

Here is the list of top-rated brands that were evaluated by PM.

Brand Count
Dow Agrosciences 12

Top 10 weed killers Brands Pie Chart


We've carried out a comprehensive analysis of 4,806 reviews on weed killers, using our selection criteria to identify the best options in the gardening & lawn care. Our findings reveal that most customers typically select weed killers priced around $214.33, with top brands including syngenta, ortho, roundup, spectracide, whitetail institute, home and country usa, bioadvanced, bonide and southern ag and wet & forget

Our team of expert editors reviewed these high-quality items and handpicked the top 12 weed killers for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the gardening & lawn care category. These include amazon.com, edealcentral, home and country usa, aserson, onlinesellingpartner, the andersons pn, bluewater chemgroup, maxwarehouse and epest and petra tools .

We are dedicated to assisting our users in finding the right killers Products based on their needs, saving them considerable time when choosing which weed killers to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.