Best Post Emergent Herbicide For Foxtail: 9 Options Compared

#1 · Best Overall

1. AGROMAX Karmex Diuron 80 DF

• Weight: 5 lb
• Form: Granules

Best for: Foxtail-listed dry flowable.

Why it ranks #1: Its listing explicitly names foxtail and describes pre- and post-emergent control; it is positioned for agricultural use, so verify site eligibility on the label.

Foxtail is explicitly named among the weeds controlled by Karmex Diuron 80 DF, making this the clearest match here for buyers prioritizing that target. Its pre- and post-emergent activity also addresses annual grasses and broadleaf weeds before and after emergence in agricultural and non-crop applications.

The stated full-cycle activity gives land managers a way to address weeds at more than one growth stage, while the target list specifically includes foxtail, crabgrass, ryegrass, and pigweed. Its dry-flowable granules come as two bags, and the listing describes agricultural and non-crop uses, which helps define the intended application setting. Directions say to refer to the label for complete instructions, so application planning depends on following that product guidance rather than assuming a lawn use.

Skip it if you need a product specifically positioned for lawn and turf; Liquid Harvest Mesotrione is listed for lawn and turf grasses.

This is the most direct listed fit for agricultural or non-crop buyers seeking foxtail among a broad weed target range. Its stated use setting matters: lawn and turf owners should not assume it is intended for their grass.

Listed on Amazon as: Karmex Diuron 80 DF – Pre and Post Emergent Herbicide (2 Pack) – Weed Control for Agricultural Use – Controls Crabgrass, Foxtail, Ryegrass, Pigweed & Broadleaf Weeds – Dry Flowable Granules

#2 · Non-Crop Control

2. Alligare Diuron 80 DF

• Weight: 5 lb
• Form: Granule

Best for: Industrial non-crop control.

Why it ranks #2: This diuron product offers pre- and post-emergent control of annual grasses, but its listed targets omit foxtail and its stated setting is non-crop areas.

Pre- and post-emergent activity makes Alligare Diuron 80 DF a full-cycle option for industrial and other non-crop areas, where its listing emphasizes long-term control of annual grasses and broadleaf weeds. Dry granules suit buyers applying a ground-use product across demanding sites such as highways or airports.

The dual-action formula is intended to address weeds before and after emergence, supporting longer-term vegetation management in non-crop settings. Its dry-granule form is specified for ground application, while the listing calls out highways, airports, and industrial zones as use environments. Crabgrass and ryegrass are named among the targets, but foxtail is not specifically identified in the supplied details. The label also warns against applying directly to water or areas with surface water.

Skip it if you need a lawn-focused product with foxtail named; AGROMAX Karmex Diuron 80 DF explicitly lists foxtail, though its stated uses are agricultural and non-crop.

Alligare suits land managers seeking ground-applied weed control in industrial or other non-crop areas. Its stated setting is an important boundary for lawn owners, and its supplied target list does not specifically name foxtail.

Listed on Amazon as: Alligare Diuron 80 DF Herbicide – Pre- & Post-Emergent Weed Killer for Industrial & Non-Crop Areas – Controls Crabgrass, Ryegrass & Broadleaf Weeds – Dry Granules for Ground Application – 5 lb

#3 · Lawn-Turf Option

3. Liquid Harvest Mesotrione

• Weight: 8 oz
• Form: Liquid

Best for: Water-activated lawn concentrate.

Why it ranks #3: The listing targets grasses and names barnyard grass among 46 targets, with lawn and turf use; it does not specifically confirm foxtail control.

Liquid Harvest Mesotrione starts absorbing upon application, while its instructions connect activation to water, giving buyers a clear follow-up step when rainfall does not arrive. The concentrate targets 46 broadleaf species and grasses, with the supplied examples including crabgrass, clover, and barnyard grass.

The stated 2–3 week period for full weed death helps set expectations: absorption starts after application, but visible completion takes longer. Water activation is another important part of the workflow; if rainfall does not occur within 10 days, the instructions call for applying 0.15 inches of water. Its listed turf fits include Kentucky bluegrass, centipede grass, buffalo grass, and tall fescue, so buyers should check whether their grass is among the supplied examples.

Skip it if you want foxtail specifically named as a target; AGROMAX Karmex Diuron 80 DF lists foxtail in its control claims.

This suits lawn owners prepared to follow water-activation directions and allow time for full weed death. Its named targets and listed turf examples help guide selection, but foxtail is not among the supplied target examples.

Listed on Amazon as: Liquid Harvest Mesotrione – 8oz – Mesotrione Concentrate (Compare to Tenacity) – Pre and Post-Emergent Weed Killer for Lawn and Turf Grasses

#4 · Surfactant Included

4. Liquid Harvest Mesotrione Bundle

• Weight: 8.32 oz
• Form: Liquid

Best for: Mesotrione with surfactant.

Why it ranks #4: It lists mesotrione for lawn and turf grasses and includes an 8-ounce surfactant, though foxtail is not among the named target weeds.

This Liquid Harvest bundle pairs an 8-ounce mesotrione concentrate with an 8-ounce surfactant, giving lawn and turf buyers both listed components in one purchase. The concentrate targets 46 broadleaf species and grasses, including crabgrass, clover, and barnyard grass, and begins absorbing upon application.

The mesotrione’s stated target range covers 46 broadleaf species and grasses, and the listing names several examples that help buyers assess relevance to their lawn. The bundle includes surfactant alongside the concentrate, while the application information makes water activation part of the process: if rainfall does not occur within 10 days, apply 0.15 inches of water. Full weed death may take 2–3 weeks, so this is not an instant-result approach.

Skip it if you need foxtail explicitly named among the targets; AGROMAX Karmex Diuron 80 DF lists foxtail in its control claims.

This bundle fits lawn and turf owners seeking mesotrione with surfactant and who can follow its water-activation directions. Allow for the stated time to full weed death, and note that foxtail is not named in the supplied target examples.

Listed on Amazon as: Liquid Harvest Mesotrione Bundle – 8 Ounces – Mesotrione Concentrate (Compare to Tenacity) – Pre and Post-Emergent Weed Killer for Lawn and Turf Grasses with 8oz Surfactant

#5

5. Prime Source Celsius WG

• Weight: 18.14 g
• Form: Powder

Best for: Warm-season turf powder.

Why it ranks #5: This post-emergent product controls more than 120 weeds in warm-season turf, including grasses, but the supplied details do not name foxtail.

A three-active-ingredient post-emergent formula gives Celsius WG broad-spectrum weed control across warm-season turf. Its description says it controls more than 120 annual and perennial broadleaf weeds and grasses, making this packet relevant to buyers managing multiple weed types in compatible turf rather than seeking a single-target treatment.

Celsius WG is a foliar-applied powder with three active ingredients, which the description connects to broad-spectrum control. Its stated fit includes warm-season turf such as St. Augustinegrass and Bermudagrass, giving buyers a clear starting point for matching the product to their lawn type. The easy-mix packet and product label are included, supporting preparation from a small packet. The supplied facts do not specifically name foxtail as a controlled weed.

Skip it if you need foxtail explicitly named as a target; AGROMAX Karmex Diuron 80 DF lists foxtail in its control claims.

This packet is suited to warm-season turf owners seeking post-emergent control across a wide range of weeds. Match the stated turf fit to your lawn, and look elsewhere if a specifically named foxtail target is essential.

Listed on Amazon as: Prime Source Celsius WG – 0.226 oz Easy Mix Packet-Post Emerge Weed Control

#6

6. Celsius WG Two-Pack

• Weight: 12.75 g
• Form: Granule

Best for: Two-treatment warm-season program.

Why it ranks #6: The two-pack describes control of 120-plus weeds and warm-season use, but does not specifically list foxtail among its named targets.

Two packets are presented as a spring-and-fall treatment cycle covering up to 4,000 square feet, giving warm-season lawn owners a seasonal plan in one order. The product claims control of more than 120 weeds, including crabgrass, dollarweed, and clover, across two applications.

The packet schedule assigns one treatment to early spring as weeds emerge and the second to late summer or fall for seasonal cleanup. Each packet is described as making two gallons, and the combined program covers up to 4,000 square feet, helping buyers gauge whether the stated coverage suits their area. The listing identifies Celsius WG and warm-season weed control, but its named examples do not specifically include foxtail, so do not treat that as a stated target.

Skip it if you need a listed foxtail target; AGROMAX Karmex Diuron 80 DF explicitly includes foxtail among its controlled weeds.

This fits warm-season lawn owners planning two treatments across spring and late summer or fall, provided the stated coverage matches the area. Check the product’s named weed targets if foxtail control is central to your choice.

Listed on Amazon as: Celsius WG Herbicide 2-Pack with Bug And Blade Weed ID Card

#7

7. Atticus Torocity Mesotrione

• Weight: 8 oz
• Form: Liquid

Best for: Flexible mesotrione timing.

Why it ranks #7: Mesotrione provides pre- and post-emergent grassy and broadleaf weed control for lawns, but the product details supplied do not identify foxtail.

Pre- and post-emergent activity gives Atticus Torocity flexibility to address weeds at different stages in a lawn program. Its 40.0% mesotrione formulation is described as the same active ingredient as Tenacity, and the included pre-marked syringe helps users measure the concentrate for application.

Torocity’s dual pre- and post-emerge activity gives buyers more than one application timing to work with, including use in newly seeded areas as well as established turf, according to the supplied description. The pre-marked syringe makes measuring the liquid concentrate more straightforward. Mesotrione is identified as the active ingredient, but the provided product details do not name foxtail specifically, so buyers focused on that weed should weigh the targeting information carefully.

Skip it if you need explicitly listed foxtail control; AGROMAX Karmex Diuron 80 DF names foxtail among the weeds it controls.

Torocity suits lawn owners who value flexible pre- and post-emergent timing and a measuring aid for concentrate applications. Consider its stated weed targets carefully if foxtail, rather than general lawn weeds, is your main concern.

Listed on Amazon as: Atticus Torocity Mesotrione Herbicide (8oz) – (Compare to Tenacity)

#8

8. BASF Drive XLR8

• Weight: 4.2 lb
• Form: Liquid

Best for: Rainfast lawn concentrate.

Why it ranks #8: This lawn and turf concentrate targets crabgrass and broadleaf weeds and offers up to 30 days of residual control, but foxtail is not specified.

A water-based formulation that is rainfast in less than an hour gives Drive XLR8 a practical edge when weather may interrupt a lawn treatment. Its quinclorac concentrate is presented for post-emergent grassy and broadleaf weed control, with residual activity intended to reduce how often turf needs treatment.

The water-based formulation is described as supporting faster plant uptake, which may suit buyers who want a treatment to get to work promptly. Up to 30 days of residual control can help reduce repeat applications, while rainfastness in less than an hour offers a useful weather window. This is a liquid concentrate, and the supplied directions call for measuring and mixing it, so application involves more preparation than using a ready-to-apply product.

Skip it if you need a product whose supplied description specifically names foxtail; AGROMAX Karmex Diuron 80 DF lists foxtail among its targets.

This fits lawn and turf owners seeking post-emergent grassy and broadleaf weed control with residual activity and a short rainfast interval. It is a less direct match when foxtail-specific targeting is the deciding requirement.

Listed on Amazon as: BASF Drive XLR8 Crabgrass Killer for Lawn & Turf, Post Emergent Grassy & Broadleaf Weed Control, Active Ingredient Quinclorac, 30 Day Residual, Herbicide, Concentrate 64 Ounce

#9

9. Monterey Remuda Glyphosate

• Weight: 8 lb
• Form: Liquid

Best for: Non-selective vegetation control.

Why it ranks #9: It is a non-selective post-emergent herbicide for annual and perennial grasses, but it is not foxtail-specific and can kill desirable vegetation.

A 41% glyphosate concentrate with surfactant offers broad-spectrum post-emergent control for actively growing vegetation in unplanted areas. Monterey Remuda is explicitly non-selective and lists annual and perennial grasses, including crabgrass, alongside broadleaf weeds, so it is a fit for vegetation management rather than selective lawn treatment.

The non-selective formula targets both grasses and broadleaf weeds, which can simplify treatment where the goal is clearing unwanted vegetation rather than preserving turf. Its post-emergent use is described for active growth in unplanted areas, making growth stage and site choice central to the workflow. The one-gallon liquid concentrate includes a measuring spoon in the title, while the supplied safety information says to use it only as directed and store it away from heat and open flames.

Skip it if you need selective treatment in an established lawn; BASF Drive XLR8 is listed for lawn and turf weed control.

Remuda is for buyers clearing unwanted vegetation in unplanted areas, including grass and broadleaf weeds. Because it is non-selective, it is not the fit for treating foxtail while preserving surrounding lawn grass.

Listed on Amazon as: Monterey Remuda Grass and Weed Killer Bundled with Measuring Spoon – Broad Spectrum Non-Selective Post-Emergent Herbicide Concentrate for Vegetation Management and Ornamental Weed Control, 1 Gal