SpeedZone Southern Herbicide EW

4.5 out of 5 stars 8 Reviews | 9 Q&A

SpeedZone Southern Herbicide EW - gallon

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Average Rating

4.5 out of 5 stars Rating: 4.5

8 Reviews | 9 Q&A

Product Overview

SpeedZone Southern Herbicide EW is an excellent selective herbicide that effectively controls over 70 broadleaf weeds in turfgrasses. Provides visible results in just a few hours plus, kills unwanted weeds within one to two weeks. It is ideal to apply on residential sites, athletic fields, roadsides, cemeteries, golf courses, and sod farms. The SpeedZone Southern Herbicide EW is specially formulated with low volatile organic content and lesser odor if compared to the original SpeedZone Southern. With its unique emulsion-in-water formulation, it offers small-sized particles that allow its active ingredients to reach the leaf surface. A selective herbicide that targets and controls weeds like ground ivy, plantain, clover, dandelion, and poison oak. For best results, it is highly suggested to use the herbicide from February to April. Available in a 1 gallon and 2.5 gallon jug.

Features and Specs

Active Ingredient 2,4-D, 2-Ethylhexyl ester - 9.02 % Dichlorprop-p, 2-Ethylhexyl ester - 5.19 % Dicamba, acid - 0.59 % Carfentrazone-ethyl - 0.47 %
Target pests Dandelion, Dollarweed, Clover, Plantain, Ground ivy, Spurge, Florida pusley, Creeping beggarweed and more.
*Check the label for complete list.
For use in Residential sites, Golf courses (excluding greens), Commercial areas, Athletic fields, Sod farms, Roadsides, Cemeteries. St. Augustinegrass, Bermudagrass, Bahiagrass, Zoysiagrass, Buffalograss, Centipedegrass, Seashore paspalum, cool-season turfgrasses.
Application Spring and fall treatments are preferred to summer treatments for older, drought-stressed weeds. Fall applications will control emerged winter annuals and perennials such as henbit, chickweed, clover, and ground ivy.
Pet safe Yes, if used as directed on label.
Formulation Emulsion in water formulation.
LA, NM, TX, VT, WA (Restricted To Licensed Applicators Only)
Special Features Cool weather performance.
Time to Kill 7 to 14 days.
Shipping Weight 22.40 lbs
Manufacturer PBI Gordon Corporation
UPC 070251874262
EPA Registration 2217-1031



It is a violation of Federal law to use this product in a manner inconsistent with its labeling.

Do not apply this product in a way that will contact workers or other persons, either this product in a way that will contact workers or other persons, either directly or through drift. Only protected handlers may be in the area during application. For any requirements specific to your State or Tribe, consult the agency responsible for pesticide regulation.

Use Restrictions

  • For ground application only; aerial applications are not permitted. Do not apply this product through any type of irrigation system.
  • Do not allow livestock to graze on any areas treated with his production.
  • Do not apply this product to bare ground.
  • Do not formulate this product into other end-use products.

Resistance Management

The active ingredients in this product belong to two different herbicide groups: Group 4 (synthetic auxins) and Group 14 (PPO/Protox inhibitors). To maintain the long term effectiveness of herbicides, consult your local extension specialist, certified advisor, and/or manufacturer representative for resistance management strategies recommended in your area.

Spray Preparation and Tank Mixes

It is a stable emulsion in water (EW) that can be diluted with water or liquid fertilizer to form a stable emulsion. Aqueous micro-emulsions are non-flammable and offer good miscibility with water.

Mixing with water:

Add one-half the required amount of water to the spray tank. Then add this product slowly with agitation and complete filling the tank with water. Mix thoroughly and continue agitation while spraying. When this product is left standing for extended periods of time, re-agitate to assure uniformity of the spray mixture.

Do not use tank additives that alter the pH of the spray solution below pH 5 or above pH 8. Buffer the spray solution to alter the pH range as appropriate. 

Mixing with liquid fertilizers:

Use suitable sources and rates of fertilizer based upon recommendations of your fertilizer supplier or State Extention Service Specialist.

Always verify physical compatibility with a jar test before large scale mixing. The jar can be conducted by mixing all components in a small container in proportionate quantities. If the mixture separates after standing and can be mixed readily by shaking, then the mixture can be used and applied with spray equipment providing continuous agitation. If large flakes, sludge, gels, or other precipitates form, or if a separate oily layer or oil globules appear, then the herbicide and the liquid fertilizer must not be prepared as a tank mixture.

Liquid fertilizers are either solutions (true fluids) or suspensions. Physical compatibility of this product is adequate with liquid nitrogen solutions. Mixing this product with suspensions or N-P-K solutions may not be satisfactory (may be marginal) without pre-mixing this product with water. Pre-mixing this product with 2 parts water will ensure that the emulsifiers are activated enabling the herbicide to be suspended in the fertilizer. 

Adjuvants and spray additives:

Adjuvants (such as surfactants, spreaders, spreader-stickers, spray thickeners, foaming agents, activators, detergents, and drift reducing agents) combined with this product can damage the leaf tissue of turfgrass. If any discoloration or cosmetic effects are objectionable or would be unacceptable, then the use of adjuvant(s) would not be recommended. Do not use adjuvants and spray additive tank-mix combinations unless your experience indicates that the tank mixture will not result in objectionable turf injury.

Where To Use

  • Ornamental Turfgrass Sites:
    • Residential/domestic sites including areas associated with household or home life including apartment complexes, and condominiums.
    • Ornamental turf sites including turfgrass established around residences, parks, streets, retail outlets, cemeteries, industrial and institutional buildings, recreation areas, playgrounds, fairgrounds, and athletic fields.
    • Institutional sites including properties or facilities providing a  service to public or private organizations including, but not limited to hospitals, nursing homes, schools, museums, libraries, sports facilities, golf courses, and office buildings.
    • Non-cropland sites: including farmyards, fencerows or fence lines, highway right-of-way (principal, interstate, county, private, and unpaved roads): roadsides, roadside ditches, road shoulders, road embankments, dividers, and medians; Industrial sites: lumberyards, tank farms, fuel, or equipment storage areas; Municipal, state, and federal lands: airports and military installations; railroad rights-of-ways, railroad yards, railroad crossings and railroad bridge abutments; utility rights-of-way: telephone, pipeline, electrical powerlines, and communication transmission lines.
    • Agricultural site: Commercial sod production

Prohibitions of Sites:

  • Do not apply this product to 'Floratam' and 'Bitterblue' varieties of St. Augustinegrass, bentgrass mowed under 1/4 inch, carpetgrass, dichondra, legumes, and lawns where desirable clovers are present.
  • Do not apply to any body of water such as lakes, streams, rivers, ponds, reservoirs, estuaries (salt water bays), or wetlands (swamps, bogs, potholes, or marshes). Do not apply to any shorelines (non-cropland sites adjacent to the edges of a body of water) for lakes, streams, rivers, ponds, reservoirs, or estuaries (salt water bays).
  • Do not apply to agricultural irrigation water or irrigation ditch banks or canals.
  • Do not apply to golf course greens.

How Much To Use

Use Rates and Spray Volumes:

Generally, the lower application rates within the specified range will provide satisfactory control of sensitive weed species. The higher application rates within the specified range will be required for dense infestations of perennial weeds, for adverse/extreme environmental conditions, or for weeds hardened off or more mature. 

Use Rated For Ornamental Turfgrass, Sod Farms, and Non-Cropland

  • Kentucky bluegrass, annual bluegrass, annual ryegrass, perennial ryegrass, tall fescue, red or fine leaf fescues, bentgrass mowed at 1/2 inch or higher
    • Rate: 4 to 6 pt/acre ( 1.5 to 2.2 fl. oz./1000 sq. ft.)
    • Spray Volume: 3 to 173 gal/acre (9fl. oz. to 4 gal/1000 sq. ft.)
  • Bermudagrass, bahiagrass, buffalograss, centipedegrass, seashore paspalum, St. Augustinegrass (excluding 'Floratam' and 'Bitterblue' varieties), zoysiagrass
    • Rate: 2 to 4 pt/acre ( 0.7 to 1.5 fl. oz./1000 sq. ft.)
    • Spray Volume: 3 to 173 gal/acre (9fl. oz. to 4 gal/1000 sq. ft.)

Limitations on broadcast treatments for ornamental turfgrass, sod farms, and non-cropland:

The maximum application rate is 6 pints of product per acre per application (0.38 lb. 2,4-D ae, 0.23 lb Dichloroprop ae, 0.038 lb dicamba ae, 0.030 lb Carfentrazone per acre per application). The maximum number of broadcast applications is limited to 2 per year. The minimum interval between applications is 21 days for sod farms and 30 days for non-cropland. The maximum seasonal rate is 12 pints of product per acre (0.77 lb 2,4-D ae, 0.45 lb Dichlorprop ae, 0.075 lb dicamba ae, 0.060 lb Carfentrazone per acre).

Application Timing

Spring and fall treatments are preferred to summer treatments for older, drought-stressed weeds. Fall applications will control emerged winter annuals and perennials such as henbit, chickweed, clover, and ground ivy.

A second broadcast application or a follow-up spot treatment is suggested for more mature weeds, for dense infestations, and for adverse environmental conditions. Do not make more than 2 broadcast treatments of this product per site per year. Spot treatments during the summer may be appropriate for sparse infestations, or as a follow-up treatment.

Timing Factors Which Affect Weed Control

  • Weed control is more effective when the daytime air temperature is above 50 degrees F, soil moisture is adequate, and target weeds are young and actively growing.
  • Rainfast in as little as 3 hours.
  • If dry conditions exist, irrigation 24 hours before and 24 hours after the application will increase weed control.
  • Higher spray volumes may increase weed control during adverse conditions.

Timing Factors Which Affect Turfgrass Tolerance

  • Turf species listed on this label may exhibit temporary discoloration under adverse environmental conditions.
  • Temperatures over 90 degrees F, moist soil, and high humidity will tend to increase herbicide activity. These conditions will also increase the possibility of temporary turf discoloration.
  • Other conditions which may increase the possibility of turf injury include disease insect, and nematode stress; low light (shaded) areas, low soil pH, improper mowing, or improper applications of fertilizer and pesticides.
  • If an injury occurs, turf will resume normal color and growth after mowing.

For Newly Seeded Areas:

Delay application of this product to grass seedlings until after the second mowing.

For Newly Sodded, Sprigged, or Plugged Areas:

The application of this product should be delayed until 3 to 4 weeks after the sodding, sprigging, or plugging operations.

Reseeding interval:

Treated areas may be reseeded 1 week after application.


Delay mowing 2 days before until 2 days after the application of this product.

Broadleaf Weeds Controlled

  • Aster
  • bedstraw
  • beggarweed
  • bindweed
  • black medic
  • broadleaf plantain
  • buckhorn plantain
  • bull thistle
  • burdock
  • buttercup
  • carpetweed
  • chickweed
  • chicory
  • cinquefoil
  • clover
  • cudweed
  • curly dock
  • dandelion
  • dayflower
  • deadnettle
  • dock
  • dogfennel
  • English daisy
  • False Dandelion
  • field bindweed
  • field oxeye-daisy
  • filaree
  • ground ivy
  • groundsel
  • hawkweed
  • henbit
  • innocence
  • knotweed
  • Lambsquarter
  • lawn Burweed
  • Lespedeza
  • mallow
  • matchweed
  • nettle
  • old world diamond
  • oxalis
  • pennsylvania
  • pepper weed
  • pigweed
  • pineapple weed
  • plantain
  • poison ivy
  • poison oak 
  • prickly lettuce
  • purple cudweed
  • purslane
  • ragweed
  • red sorrel
  • shepherd's purse
  • spurge
  • thistle
  • virginia buttonweed
  • white clover
  • wild carrot
  • wild garlic
  • wild lettuce
  • wild mustard 
  • wild onion
  • wild strawberry
  • wild violet
  • yarrow
  • yellow rocket
5 stars   5
4 stars   2
3 stars   1
2 stars   0
1 star   0
Review Search   
Sort Reviews
  • 3 of 5 Stars

    Works fairly ik

    By Mike on 03/13/2020

    While the product seems to work ok, my particular gallon has so much undissolved material in that it keeps logging the screens on my sprayer.

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    6 of 8 people found this review helpful

  • 5 of 5 Stars

    Mistakes Happen

    By Bill on 05/08/2020

    My order from DMO arrived and it was obvious that the product had been previously opened and not full. A quick email later and I had an apology and return instructions and promised replacement. Replacement was here in two days!! Thank you for elite customer service!!!

    Was this review helpful to you?  YesNo

    6 of 7 people found this review helpful

  • 5 of 5 Stars

    Works great.

    By Nathan on 03/30/2020

    Works great. As good or better than the original speedzone southern. One huge plus is that it has nowhere near the odor that the original has. Just be sure to mix thoroughly to avoid sprayer filter/screen clogging. Definitely worth the small additional cost if you are spraying customers lawns.

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    4 of 4 people found this review helpful

  • 4 of 5 Stars

    Use max concentration

    By Kevin on 05/29/2020

    I've used this product on two separate residential properties in eastern NC. Works well but it does need upwards of two weeks to show effects. The first tile I applied it I used the .75oz/gallon of water concentration and the results are good but not as impressive as 1.25oz / gallon. I will definitely be using this product again. No more “weed n feed” products for me

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    2 of 3 people found this review helpful

  • 4 of 5 Stars

    SpeedZone Southern.

    By Eddie on 06/12/2020

    Seems to be working well, the second application goes down at the end of the month. Talk to me then!

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    2 of 2 people found this review helpful

See all 8 customer reviews

Questions & Answers

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Sort Questions
Do I need to use a surfactant with SpeedZone Southern, and if so, which one?

Adding a surfactant to SpeedZone Southern Herbicide EW may reduce selectivity on turfgrass so it could harm your lawn.  

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15 of 15 people found this answer helpful

How soon can I mow after using SpeedZone Southern Herbicide EW ?

It is recommended not to mow within 2 days before or 2 days after application of SpeedZone Southern Herbicide EW 

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6 of 7 people found this answer helpful

What the maximum temperature for applying SpeedZone Southern Herbicide EW

Do not broadcast apply Speedzone when air temperatures exceed 90 degrees Fahrenheit. Injury to desirable plants may occur and efficacy may also be impacted.


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6 of 6 people found this answer helpful

What can I use to get rid of clover in my lawn?

I live in Orange Texas. Also there are lily pad looking plants every where. What do I use to control theses plants/weeds?


SpeedZone Southern Herbicide EW will get rid of clover in warm season grasses, listed on the label. Please refer to the label fo complete application instructions as SpeedZone Southern Herbicide cannot be applied as a broadcast or spot treatment more than 2 times per season.  A minimum of 30 days is required between applications if needed. For lily pads, we suggest Rodeo Herbicide. If you are making an application with ta sprayer you would use approz 2 and 2/3 oz per gallon or 5 pints of Rodeo per acre.

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6 of 6 people found this answer helpful

Is SpeedZone Southern Herbicide EW safe on horse pastures? If so, how many days after spraying is it safe to let them back on the pasture?

SpeedZone Southern Herbicide EW is not labeled for use used on horse pastures. Livestock should not be allowed to graze in areas where this product was applied. 

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4 of 7 people found this answer helpful

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SpeedZone Southern Herbicide EW 4.5 out of 5 stars Rating: 4.5 (8 Reviews / 9 Q&A)

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