If you’re looking for ways to maintain a healthy lawn, using a pre-emergent herbicide can help prevent pesky weeds from growing in the first place. However, with so many options available, it can be difficult to determine the best pre-emergent herbicide for your lawn. Before making a purchase, there are several factors to consider.
First, it’s important to identify the type of grass in your lawn and ensure that the pre-emergent herbicide you choose is compatible. Additionally, consider the timing of application. Pre-emergent herbicides should be applied before weeds begin to germinate, typically in the spring or fall. Finally, determine the level of weed control you need and choose a product with the appropriate amount of active ingredient.
When choosing a pre-emergent herbicide, ask yourself: What type of grass do I have? When is the best time to apply the product? How much weed control do I need? It’s also beneficial to read reviews and do research to find a product that has a proven track record of effective use. By taking these factors into account, you can find the best pre-emergent herbicide for your lawn and enjoy a weed-free landscape all season long.
10 Best Pre Emergent For Lawns
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1
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It is ideal for preventing crabgrass and weeds in lawns and ornamental garden beds.
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2
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It is ideal for preventing the growth of weeds in landscapes and turf before they emerge from the ground.
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3
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Barricade 4FL Herbicide Concentrate is ideal for preemergent weed control on lawns, turf grass, and ornamentals.
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4
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Ideal for controlling weeds in various turfgrass environments.
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5
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This product is ideal for controlling weeds in turf and lawns.
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6
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This product is ideal for controlling weeds and unwanted vegetation in areas such as lawns, landscapes, and non-crop areas.
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7
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This herbicide is ideal for controlling and killing weeds before they emerge, making it perfect for vegetable and ornamental gardens.
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8
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This product is ideal for preventing weeds from growing in yards and gardens.
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9
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This product is ideal for maintaining a healthy lawn by controlling weeds and providing essential nutrients to grass.
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10
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Ideal for preventing the growth of weeds and controlling annual grasses in turf areas.
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1. Dura Turf Crab-Grass Pre-Emergent Control

Bonide Preemergent Weed Control is the perfect solution for those looking to keep their lawns and gardens weed-free throughout the season. This easy-to-use product can be applied in the spring and will keep weeds and crabgrass at bay for the entire growing season.
With Bonide Preemergent Weed Control, you won't have to worry about mixing or measuring anything. The product comes ready to use, making it simple to apply. It can be applied up to four weeks later than other crabgrass preventers and provides up to four months of crabgrass control.
One bag of Bonide Preemergent Weed Control will cover up to 5,000 square feet of turfgrass, making it an economical choice for larger areas. It can be used on cool-season and warm-season turfgrass, and the granular product should be applied to the ground as directed on the label.
This weed control solution is effective against over twenty different weeds, including foxtail, chickweed, annual bluegrass, barnyard grass, goosegrass, spurge, and more. Use it on lawns or ornamentals as directed on the bag for the best results. However, it is not recommended for use on fruit or vegetable plants. Additionally, it's important to keep people and pets away from the treated area until the dust has settled.
It's important to note that Bonide Preemergent Weed Control does not contain fertilizer, so you'll need to use a separate product if your lawn or garden needs additional nutrients.
2. Oxadiazon 2g Pre-Emergent Landscape And Turf Herbicide Equivalent To Ronstar G 50 Lbs.

The granular formulation of Oxadiazon 2G is a top-performing weed and grass control solution that is easy to apply. Its proven, long-lasting formula effectively controls unwanted plants through the shoot, without causing any harm to the roots.
This product is specially designed for use in established Bermuda grass, St. Augustine grass, and Zoysia turf, making it an ideal solution for fairways, golf courses, parks, and lawns. It can be used on both newly transplanted and actively growing or dormant plants, providing versatile application options.
With Oxadiazon 2G, users can rest assured that they are using a safe and reliable solution that delivers effective results. Its easy-to-apply granular formulation makes it a convenient option for anyone looking to maintain a healthy and well-manicured lawn or turf.
3. Long Lasting Lawn Herbicide: Barricade 4fl!

Barricade 4FL is a pre-emergent concentrate that effectively prevents the growth and development of weeds before they germinate. This product is widely applicable in a variety of areas such as vegetation sites, turf species, weed control, grass, broadleaf weeds, established turfgrasses, lawns, sod nurseries, and Christmas tree farms.
One of the key features of Barricade 4FL is its long-lasting preemergence weed prevention capability. With just one application, this selective weed spray solution can prevent weeds from growing season long when used as directed. It can be applied several months before germination and is effective well into the peak season.
Barricade 4FL is an ultra-effective weed prevention solution that can be used all season long for targeted weed control. You can modulate your use during shorter growing seasons, making it ideal for container, field-grown, and landscape ornamentals.
This broad-spectrum herbicide is super effective on residential turf, production, and landscape ornamentals. It can tackle up to 30 species of turf weeds, including both summer and winter annuals. Barricade 4FL is all you need to clear your lawn of pesky weeds.
By inhibiting growth, this herbicide for lawns prevents weed development and targets pesky grass and weeds to the root in one swift application. It is important to note that Barricade must be applied before the targeted weeds germinate and emerge for it to be effective.
4. Bayer Celsius Wg 10 Oz

This product boasts excellent performance when it comes to controlling even the most hard-to-manage weeds and grasses in your lawn. It features a convenient application window that is not limited by high temperatures, making it easier for you to apply even during hotter seasons. The wettable granule formulation of this product is also designed to be user-friendly, ensuring that it is easy to use and apply.
This product is highly effective in controlling American burnweed, chamberbitter, common purslane, dollarweed, Florida betony, Florida pusley, lawn burweed, Lespedeza, prostrate spurge, spotted spurge, Virginia buttonweed, Bull paspalum, carpetgrass, Dallis grass (with suppression), doveweed, and large crabgrass. With its powerful formulation, you can trust that it will eliminate these pests and keep your lawn looking its best.
Whether you're a seasoned gardener or just starting out, this product is designed to be easy to use and highly effective. Its wettable granule formulation ensures that it is easy to mix and apply, while its convenient application window allows for more flexibility in scheduling your treatments. Plus, its ability to control a wide range of weeds and grasses makes it an essential tool in any gardener's arsenal.
5. Certainty Herbicide For Turf And Lawns 1.25 Oz

Certainty Turf Herbicide is the ultimate solution for controlling broadleaves, sedges, and Poa trivialis in cool-season turf and kyllinga in warm-season turf. Its easy and flexible usage method makes it an ideal choice for both commercial and residential landscapes. This herbicide comes with excellent control of both purple and yellow nutsedge, ensuring a healthier and more vibrant turf.
Certainty Turf Herbicide's active ingredient is sulfosulfuron, which enables it to deliver effective and long-lasting results. When combined with a non-ionic surfactant, this herbicide attacks nutsedge through broadcast applications or spot treatments, leaving you with a well-manicured lawn.
Whether you want to control weeds in cool-season or warm-season turf, this herbicide guarantees successful results. It enables you to take charge of your landscape by eliminating unwanted weeds and promoting healthy turf growth.
The Certainty Turf Herbicide is a perfect solution for those who seek a reliable and effective herbicide that will not only control broadleaves and sedges but also deliver excellent results against nutsedge. So, if you want to keep your lawn looking its best, give Certainty Turf Herbicide a try and experience the difference.
6. Corteva – Gallery 75 Df Specialty Herbicide Isoxaben 75% Not For Sale To: New York"

The Gallery Specialty Herbicide is a highly effective tool in the battle against broadleaf weeds. With its ability to provide season-long control of more than 90 species of broadleaf weeds, it's an essential product for any gardener or landscaper.
The preemergence broadleaf weed control offered by Gallery is superior to other products on the market, ensuring that your lawn or garden remains weed-free for the entire season. This product is specially designed to provide the best-in-class ornamental and turf safety, making it safe for use in a variety of environments.
If you're tired of battling against pesky broadleaf weeds, Gallery Specialty Herbicide is the perfect solution. Its superior effectiveness and safety make it one of the most trusted products on the market for controlling broadleaf weeds. With Gallery, you can rest easy knowing that your lawn or garden will remain healthy, beautiful, and weed-free all season long.
7. Monterey's 32oz Weed & Herbicide Control

The Pre-emergent herbicide – vegetable and ornamental weeder is a powerful solution designed to control annual grasses and broadleaf weeds in various settings, including ornamental trees, woody shrubs, groundcovers, roses, established flowers, and vegetable gardens.
This product works by killing the seeds of weeds as they germinate, preventing them from establishing and taking over your garden. It is easy to apply, requiring only an application to the soil surface and watering in, making it one of the few weed killers that can be safely used in vegetable gardens.
With up to five months of control, this herbicide offers long-lasting protection against a wide variety of weeds and grasses, including crabgrass, knotweed, chickweed, and more. It is a great solution for those looking to combat weeds before they even appear, making it an effective weed and grass preventer.
It is important to note that while this product is highly effective at preventing the growth of new weeds, it does not control established weeds. Therefore, it should be used as a preventative measure rather than a solution for existing weed problems.
8. Andersons, The Barricade Granular Weed Preventer

The product being reviewed is a highly effective solution that can save both time and money while providing proven pre-emergent control on a wide range of broadleaf and grassy weeds. This versatile product can be applied in a variety of locations, including lawns, ornamentals, sports fields, and fairways.
One of the key benefits of this product is its DG Pro formulation, which allows for more particles per square inch of chemical, resulting in better control of weeds. This advanced formulation ensures that the product remains in the weed zone once activated by rainfall or irrigation.
Whether you're looking to control weeds in a residential or commercial setting, this product is a reliable and effective option. It is designed to provide long-lasting protection against a wide range of weeds, making it an ideal choice for anyone looking to maintain a beautiful, weed-free landscape.
In addition to its powerful weed control capabilities, this product is also easy to apply and safe to use. Its user-friendly design ensures that it can be applied quickly and efficiently, and it is formulated with safety in mind to ensure that it does not pose any risks to people or pets.
9. Fertilome (10926) Centipede Weed & Feed 15-0-15 (20 Lbs.)

Introducing the innovative two-in-one fertilizer and weed control product, perfect for maintaining a pristine lawn and garden. With the ability to control over 200 broad leaf types, this product ensures that pesky weeds such as Dollar Weed, Wild Onion, Dandelions, Chickweed, Henbit, and Spurge are effectively managed. For a comprehensive list of controlled weeds, refer to the product label.
Not only does this product control weeds, it also provides slow-release Nitrogen and high Iron content to promote healthy plant growth. With its post-emergent broadleaf weed control, you can be sure that your lawn will remain weed-free and lush.
With coverage of up to 5,000 square feet, this two-in-one product is highly efficient, only requiring application twice a year. For best results, apply to pre-moistened grass or early morning dew. It is important to note that watering should be avoided for 24 hours following application.
Say goodbye to weeds and hello to a beautiful, verdant lawn with this exceptional two-in-one fertilizer and weed control product.
10. Drexel Pin-Dee 3.3 T&o Pre Emergent Herbicide With Pendimethanlin, 1.25 Gallon

The Pin-Dee 3.3 herbicide is a reliable solution for pre-emergent control of most annual grasses and certain broadleaf weeds. With a powerful emulsifiable concentrate containing 3.3 pounds of active Pendimethalin per gallon, this herbicide is an effective tool for landscape and ground maintenance.
One of the key advantages of Pin-Dee 3.3 herbicide is its high concentration of active ingredient, with 37.4% Pendimethalin ensuring thorough and long-lasting control of weeds. This herbicide can be used in a variety of settings to prevent the emergence of unwanted plants, making it a valuable addition to any gardening or landscaping toolkit.
Whether you're looking to maintain a pristine lawn or preserve the natural beauty of your property, Pin-Dee 3.3 herbicide is a versatile and effective solution. With its broad-spectrum pre-emergent control, this herbicide can help you achieve your desired results with ease and efficiency.
Best Pre Emergent For Lawns FAQs
Are there any natural or organic pre emergent options for lawns?
Yes, there are natural and organic pre-emergent options available for lawns. These options are made from natural ingredients and are an eco-friendly alternative to synthetic pre-emergent herbicides. Some of the popular natural and organic pre-emergent options include corn gluten meal, soybean meal, and vinegar-based herbicides.
Corn gluten meal is a byproduct of corn processing and is rich in nitrogen. It works by inhibiting the growth of weed seeds before they sprout. Soybean meal is another natural pre-emergent herbicide that is made from ground-up soybean hulls. It works by releasing a compound that inhibits the growth of weed seeds.
Vinegar-based herbicides are also a popular choice for organic lawn care. These herbicides contain acetic acid, which is a natural weed killer. They are effective against small weeds but may not be as effective against larger weeds.
Overall, natural and organic pre-emergent options are a great choice for those who are looking for an eco-friendly way to control weeds in their lawn. However, it's important to note that these options may not be as effective as synthetic herbicides and may require more frequent applications.
Can I use pre emergent in conjunction with other weed control methods?
Yes, you can use pre emergent herbicides in combination with other weed control methods, such as hand weeding, post-emergent herbicides, and cultural practices like mowing and mulching. Pre emergent herbicides work by preventing the growth of weed seeds before they emerge from the soil, while post-emergent herbicides kill weeds that have already germinated and begun to grow. By using both types of herbicides, you can effectively control weeds at different stages of their growth cycle.
It is important to note that different herbicides have different modes of action, and some may be more effective when used in combination with others. Additionally, it is important to follow label instructions carefully and use herbicides only as directed, as incorrect use can lead to damage to desirable plants and harm to the environment. Consulting with a professional landscaper or horticulturist can also be helpful in determining the most effective and appropriate weed control methods for your specific needs.
Can pre emergent be applied to newly seeded lawns?
No, pre-emergent should not be applied to newly seeded lawns. Pre-emergent herbicides are designed to prevent weed seeds from germinating and growing. However, they can also prevent the germination and growth of grass seeds, which is not desirable for a newly seeded lawn.
It is important to wait until the new grass has established roots and is growing strong before applying any pre-emergent herbicides. This typically takes about 6-8 weeks after seeding. At this point, the grass should be mowed 2-3 times and have a height of at least 2 inches before applying any herbicides.
If weeds are already present in the newly seeded lawn, it is best to manually remove them or use a post-emergent herbicide that is safe for newly seeded grass. It is always important to read and follow the label instructions carefully when using any herbicides, and consult with a lawn care professional if you have any questions or concerns.
How long does pre emergent last for controlling weeds in lawns?
The duration of pre-emergent weed control in lawns depends on various factors, such as the type of pre-emergent herbicide used, the application method, environmental conditions, and the type of weeds being targeted. Generally, pre-emergent herbicides can last for 2-6 months, depending on the product used. Some products require reapplication after a few weeks, while others can provide season-long weed control.
It is important to follow the manufacturer's instructions for application and reapplication, as well as to take into account weather conditions like rainfall that can affect the effectiveness of the herbicide. Pre-emergent herbicides work by forming a barrier that prevents weed seeds from germinating, so timing is crucial for optimal results. Applying pre-emergent herbicides before weed seeds germinate is the most effective way to prevent weed growth in lawns.
In summary, pre-emergent herbicides can last for 2-6 months depending on factors such as the herbicide used, application method, environmental conditions and the type of weeds being targeted. Following the manufacturer's instructions and applying the herbicide at the right time are crucial for effective weed control in lawns.
How much pre emergent should I apply to my lawn?
The amount of pre emergent that you should apply to your lawn depends on various factors, such as the type of pre emergent product you are using, the size of your lawn, and the severity of the weed problem in your area. Generally, most pre emergent herbicides come with instructions on the label that indicate the recommended application rate based on the size of the lawn.
It is important to follow the instructions carefully to avoid over or under-application, which can result in poor weed control or damage to your lawn. Typically, pre emergent herbicides should be applied evenly over the entire lawn using a spreader or sprayer.
Additionally, it is important to apply pre emergent herbicides at the right time, usually in early spring or fall, before weed seeds germinate. This will ensure that the herbicide is effective in preventing weed growth and protecting your lawn.
If you are unsure about the amount of pre emergent herbicide to apply or when to apply it, it is best to consult with a lawn care professional or your local cooperative extension service for guidance.
How often should I apply pre emergent for my lawn?
Applying a pre-emergent herbicide is an important step to keep weeds at bay and maintain a healthy lawn. The frequency of application depends on several factors such as the type of herbicide, the climate, and the type of weeds in your area. Generally, pre-emergent herbicides should be applied twice a year; once in the spring and once in the fall.
It’s important to time the application correctly as it needs to be applied before the weeds germinate. The best time to apply a pre-emergent herbicide is when the soil temperatures reach around 55-60 degrees Fahrenheit, which usually happens in the early spring. However, if you live in warmer climates, you may need to apply it earlier or more frequently.
It’s recommended to follow the instructions provided by the herbicide manufacturer for the best results. Applying too much or too little herbicide can have adverse effects on your lawn. Additionally, it’s important to water your lawn after applying the herbicide to activate it and ensure it reaches the roots of the weed seeds.
Is it safe to use pre emergent on all types of grass?
Pre-emergent herbicides can be an effective tool for controlling weeds before they germinate and establish in your lawn. However, it is important to note that not all pre-emergent herbicides are suitable for use on all types of grass. Some herbicides can cause damage or even kill certain types of grass, so it's important to read the label carefully and follow the instructions.
For example, some pre-emergent herbicides are not safe for use on St. Augustine grass, while others may be harmful to centipede grass. Additionally, some herbicides may have different application rates or timing requirements depending on the type of grass you have.
To ensure that you are using a pre-emergent herbicide that is safe for your specific type of grass, it's always a good idea to consult with a lawn care professional or your local extension office. They can provide you with guidance on which herbicides to use and how to apply them safely and effectively.
What are the best times of year to apply pre emergent for lawns?
Pre-emergent herbicides are an effective tool for preventing the germination of weeds in lawns. The timing of the application of pre-emergent herbicides is crucial to their effectiveness. The best times to apply pre-emergent for lawns are in the spring and fall seasons. In the spring, it is recommended to apply pre-emergent herbicides before the soil temperature reaches 55 degrees Fahrenheit, which is usually around early to mid-March. This timing can vary depending on the region and climate. In the fall, it is recommended to apply pre-emergent herbicides four to six weeks before the first frost, which is usually around late September to early October. It is important to follow the instructions on the herbicide label and apply the product evenly and at the recommended rate. Applying pre-emergent herbicides at the right time can help prevent weeds from germinating and keep your lawn looking healthy and weed-free.
What is the best pre emergent for lawns?
When it comes to choosing the best pre-emergent herbicide for your lawn, there are several factors to consider. Firstly, it's important to identify the type of weeds that are common in your area, as different pre-emergent herbicides are designed to target specific types of weeds. Secondly, you'll need to consider the type of grass you have, as certain pre-emergent herbicides are not suitable for use on certain types of grass.
Some of the most commonly used pre-emergent herbicides for lawns include prodiamine, dithiopyr, and pendimethalin. These herbicides are effective at preventing the growth of a wide range of weeds, including crabgrass, chickweed, and dandelions.
To determine the best pre-emergent herbicide for your lawn, it's a good idea to consult with a lawn care professional or a local gardening center. They can provide you with guidance on which herbicides are most effective for your specific lawn and weed situation, as well as advice on how to apply the herbicide safely and effectively.
What is the difference between granular and liquid pre emergent for lawns?
Granular and liquid pre-emergent herbicides are used to prevent the growth of weed seeds in lawns. However, they differ in terms of application, effectiveness, and longevity.
Granular pre-emergent herbicides are typically applied using a spreader and require irrigation to activate the active ingredient. They tend to be more effective on broadleaf weeds and last longer in the soil, providing up to 4 months of protection. They also tend to be easier to apply evenly, reducing the risk of over-application.
Liquid pre-emergent herbicides are applied using a sprayer and are absorbed through the soil. They are typically more effective on grassy weeds and have a shorter residual life in the soil, providing up to 2-3 months of protection. They are also more flexible in terms of application timing and can be applied before or after rainfall.
In summary, the choice between granular and liquid pre-emergent herbicides depends on the type of weeds you are trying to control, the application method you prefer, and your desired length of protection. It's always best to read the label instructions carefully and follow them closely to ensure proper application and effectiveness.