spraying weed killer in fence lineThe best weed killer for fence line control of unwanted plants is not the same in every situation. Figuring out how to get rid of grass along fence areas involves several crucial considerations, such as the types of weeds that are present, how close they are to plants you want to protect, and how fast you need the product to show results.

This review of four top herbicide brands gives you a clear understanding of how to select the best product for weeds around your property. So continue reading for the nitty-gritty details of each brand, and you’ll also discover which brand is the winner for the fastest results, controlling multiple weed species and ease of use.

Quick Product Overview of Fence Line Herbicides

Here is a quick overview of the brands we will be reviewing today.

Product Weed Types Time until Results Application Rate
Southern Ag Amine 2,4-D

Broadleaf and Woody 2 to 7 days 1-4 pints per acre
Roundup Kills all plants 3 hours to 5 days Spot treatment
Gordon’s SpeedZone

411cLnK5YAS. SL75

Broadleaf 7 to 14 days 1.4 oz. per 1,000 square feet
Pulverize PWG-UT-128

51aDNNg002L. SL75

Weeds, grass, algae and moss 20 minutes to

1 hour

6-9 oz. per square yard

Best Herbicide for Fence Lines: Product Reviews

– Southern Ag Amine 2,4-D Fence Line Weed Control

– Product Highlights

  • Low volatility
  • Selective broadleaf weed control
  • It also works on specific grass species
  • For lawns, pasture, ditches and fence lines
  • Concentrated formula requires mixing with water

If you need to kill grass along fence line areas, ditches or in open pasture, this product has the advantage of being effective for a wide range of broadleaf and woody plant species. In addition, the low application rate makes this product economical when treating large areas of several acres or more.

– Treatment Species

This herbicide works on multiple species of broadleaf plants, including plantain, clover, poison oak, poison ivy, thistle species and bindweed. At the same time, it does not kill or harm most types of grass, so you can apply it selectively to weeds on lawns, parks, golf courses and other grassy areas to eliminate unwanted broadleaf plants while protecting and improving the appearance of the grounds.

Since this product is not harmful to grass species, it can also be applied to corn crops as a pre and post-emergence herbicide to control broadleaf weeds between crop rows.

– How to Apply

This formula is a concentrate that must be mixed in the correct amounts with water before application. For areas up to 1,000 square feet, mix 2 to 3 tablespoons into 3 to 5 gallons of water and stir thoroughly.

For areas of one acre or more, combine 1 pint per 16 gallons of water. Depending on the species being treated, slightly higher application rates might be required, so it’s crucial to read and follow the mixing and application instructions on the package for safe and effective results.

Once the product is mixed with water, apply directly to the weeds using a pump sprayer or a low-pressure tank spray system. Spraying the product is essential for applying the correct amount per square foot of area.

In addition, this product can harm garden and crop plants, so it’s vital to avoid the drift of the spray by using the product on days without significant wind.

The air temperature can also affect the efficacy of this product. It must be applied to actively growing weeds to work, and therefore you should use it during warm weather, the optimum temperatures for which are between 70 and 80 degrees Fahrenheit.

When this product is applied at lower temperatures, the plants do not absorb it as readily, reducing the effectiveness. On the other hand, when used at temperatures over 80-degrees F, it can harm nearby grasses and lawns, causing them to turn yellow.

– Downsides

The instructions for using this product are lengthy and should be followed carefully. For this reason, this product is not suitable for anyone who does not have the time and patience to read and follow the instructions thoroughly.

In addition, this product requires careful measuring and mixing before use, so this herbicide might be too much work for some buyers to apply correctly.

– Bottom Line

Southern Ag Amine 2,4-D Fence Line Weed Control is a highly effective herbicide for multiple species of broadleaf weeds.

It can be used safely on many types of grass to spot treat unwanted broadleaf species, but it comes as a concentrate that must be carefully measured and mixed with water and then applied at the proper level to kill weeds and leave desirable plants unharmed.


– Roundup Fence Line Weed Killer

– Product Highlights

  • Kills weeds to the root
  • Fast results
  • Premixed formula for small areas
  • Controls broadleaf species, grass and perennials
  • Satisfaction guaranteed or money back

The active ingredient in Roundup is glyphosate, a compound that is absorbed by the plant’s leaves which then stimulates uncontrolled growth, exhausting its resources and quickly killing it down to the roots.

To be effective, spray it directly onto the unwanted plant’s leaves during the plant’s active growth phase. However, this product is a broad-spectrum herbicide, meaning it will harm any plant tissue it contacts.

Therefore, extreme caution is needed to apply it only on those plants you want to kill and prevent the spray from drifting to desirable landscape plants, flowers and vegetable gardens.

– Treatment Species

Roundup effectively kills multiple broadleaf plants and grasses, including most grass species, poison ivy, poison oak, plantain, dandelion, chickweed and many others.

In addition, Roundup kills and injures any plant it comes in contact with, including flowers, vegetable crops and landscape plants.

Therefore, as was already mentioned, it is crucial to apply this product only to plants you want to eliminate and prevent the spray from drifting to other plants.

– How to Apply

If you’re trying to stop grass from growing under fence areas in your garden or pasture, this product has the advantage of working straight from the container without mixing or pouring into a spray applicator.

The jug comes with a Sure Shot Wand® sprayer nozzle and a hand pump, so you won’t need to pour or mix fluids before tackling the weeds. In addition, the Sure Shot Wand® has a clear protective shield at the tip so that you can focus the product exactly where you want it to go while protecting other plants in your garden.

One advantage of this product over other herbicides is that it can withstand rain and other moisture within 10 minutes after application, allowing a more excellent range of times and weather conditions during treatment.

On most plants, effects are visible within three hours, and the plants die entirely down to the roots within one week. However, this product does not enter the soil and kill plants below the surface, making it unsuitable as a pre-emergent herbicide.

– Downsides

Roundup is highly effective for stopping grass and other plants from growing under fences, but it must be used with caution because it can kill or harm any plant it comes in contact with.

– Bottom Line

Roundup is a highly effective herbicide that can be used straight from the container without measuring or mixing. However, it can damage lawns and landscape plants and must be applied cautiously only to the weeds you want to eliminate.


– Gordon’s SpeedZone Fence Line Weed Control

411cLnK5YAS. SL500

– Product Highlights

  • High coverage rate
  • Controls 75 species of grass and broadleaf plants
  • Can be used for spot treatment
  • Results in 24 hours or less
  • Safe for most lawns and turfgrass

This product can effectively keep weeds from growing under fence lines, on lawns and in pastures through the combination of four herbicides: 2.4D, mecoprop d acid, dicamba acid and carfentrazone-ethyl.

It kills broadleaf plants and can also harm some grass species. It can be used in the spring, summer, and fall, but it is not recommended for use in winter. In addition, it works best when there is moisture in the soil and is less effective in summer when the ground dries.

– Treatment Species

You can use Gordon’s SpeedZone herbicide to kill dandelion, clover, plantain, ivy, knotweed, chickweed and many other broadleaf plants. It is safe for eliminating weeds in many grass species and does not harm Kentucky bluegrass, colonial bentgrass, tall fescue and cool-season turfgrass species, making it an effective herbicide for getting rid of weeds in a lawn.

However, it does harm St. Augustine grass, buffalo grass, bahiagrass and desirable clover species. It will also be able to kill trees, shrubs and bushes in the landscape and should be used cautiously around these plants.

– How to Apply

When using this product to eliminate weeds in a lawn, do not mow for two days before or after applying the herbicide. In addition, do not use it within four hours of rain or irrigation. Instead, apply with a sprayer and spot treat the weeds that you want to kill.

Since this is a broadleaf herbicide, it can also harm shrubs, trees, flowers and vegetable gardens. Therefore, it’s essential to prevent spray drift from coming into contact with desirable plants. It works best during periods of cool weather or when applied late in the day during the summer months.

Carefully mix the product with water according to the package instructions and apply with a backpack sprayer or hand pump spray bottle. One bottle can treat up to 18,000 square feet of area, so this product is ideal for people who have large yards and lots of weeds. You can expect to see results within 24 hours after application.

– Downsides

This product requires careful mixing and measuring for safe and effective use. When used during hot weather, it can harm desirable grass species in a lawn, so it is best to use it during cool weather.

In addition, spray drift can easily harm landscape plants, shrubs, trees and vegetable crops. Take note that this product cannot be shipped to certain states, including Alaska, New Jersey, Vermont and Michigan.

– Bottom Line

Gordon’s SpeedZone weed control is a broad-spectrum herbicide that kills a wide variety of broadleaf plants. It is safe for killing weeds in many types of lawn and turfgrass, but it can also harm lawns if applied during hot weather.


– Pulverize PWG-UT-128 Fence Line Weed Killer

416U4UbMA7L. SL500

– Product Highlights

  • Kills grass, broadleaf species, moss and algae
  • Safe for organic gardens
  • Best results seen on small plants under 5 inches
  • Results in 20 minutes
  • Does not stain

This product kills weeds with a combination of ingredients that include iron compounds and ammoniated soap of fatty acids. These chemicals poison plants, but they are less toxic to the environment than many other types of herbicides. For this reason, this product is considered safe for use in organic gardens.

– Treatment Species

Pulverize PWG-UT-128 can be used to kill and control broadleaf weeds like plantain, dandelion, chickweed and also unwanted grasses, moss and algae. It’s also effective for suppressing the growth of bi-annual plants and perennials like poison oak and ivy because it kills plants down to the root system. In addition, it won’t stain concrete or bricks if the spray accidentally gets onto these surfaces.

– How to Apply

The product is premixed and can be used directly out of the container. However, you will need a backpack sprayer or a hand pump spray bottle to apply it to the weeds.

The product comes in three formulations; one is specifically for eliminating weeds in lawns, another kills both broadleaf weeds and grass, and the third product is effective on perennial bushes and vines.

Shake the container, pour the undiluted liquid into a spray applicator, and apply it to the weeds during warm, dry weather. If it rains within three hours, you might need to use it a second time.

This product works best on small plants during their active growth phase and is less effective on well-established plants that are not actively growing. Soak the plant thoroughly with the spray, and avoid getting any liquid or mist onto nearby plants that you don’t want to harm.

Once sprayed onto a plant, you can expect to see results in as little as 20 minutes. Hard to kill weeds might need repeated applications at two-to-three-week intervals.

This product can also be used as a pre-emergent herbicide on the bare ground before planting landscape plants such as turf grass or flower beds. It’s also helpful in eliminating weeds growing through concrete and in hard-to-reach places near buildings.

– Downsides

While Pulverize PWG-UT-128 is safer for the environment than many other synthetic herbicides, it is still highly effective at killing plants. Therefore, it’s crucial to read and follow all instructions on the package and avoid getting any spray onto plants you don’t want to harm.

– Bottom Line

This product is considered safe for use in organic gardens. It comes premixed, but you must provide the spray bottle to apply it to the weeds and unwanted grass. It works best on small, actively growing plants, and is available in three formulations for use on weeds in a lawn area, broadleaf plants and grasses, and perennials.


Fence Line Weed Killer Product Comparisons

In this section, we will look at which of these products is the winner for the fastest results, control of multiple weed species, and ease of use.

– Speed of Results

Winner: Pulverize PWG-UT-128

Pulverize PWG-UT-128 can help you get rid of grass along fence lines and in other hard-to-reach areas in as little as 20 minutes. This product is the fastest acting weed killer on this list.

– Best Control of Multiple Weed Species

Winner: Pulverize PWG-UT-128

Because this product comes in three different formulations for various types of plants, it controls more unwanted plants than any others on this list. Besides being effective for killing broadleaf weeds and unwanted grass, it is also the only one in this review that eliminates algae and moss.

– Easiest to Use

Winner: Roundup Fence Line Weed Killer

Of all the products reviewed here, Roundup is the easiest to use because it comes premixed with a spray wand for application straight out of the bottle. You don’t need to measure or mix anything to use this product, and you don’t need to invest in a separate sprayer to get it onto the weeds.



As you can see, the best weed killer for fence line control of unwanted plants depends on what type of weeds you want to kill. Some weed killer products are best for controlling broadleaf weeds like dandelion and plantain, while others kill grass, perennials, and even moss and algae.

In addition, take note that broad-spectrum herbicides like these can also damage landscape plants, vegetable crops and lawns.

When choosing an herbicide for your garden or pasture, carefully consider the type of weed you want to eliminate.

After that, read and follow all package instructions and apply the product at the correct dosage, under optimum weather conditions, and during the appropriate plant growth stage. In this way, you can effectively control weeds without damaging the rest of your garden, your health or the environment.

5/5 - (18 votes)
Evergreen Seeds