Are you looking for the best pre-emergent products for your lawn but feeling overwhelmed by all the choices?

You’re not alone! It can be confusing to know which product is right for you and if it will even work at all. But don’t worry, we have some tips that can help make your decision easier.

We understand how important it is to find the perfect product for Best Pre Emergent For Lawns that works well with your needs. That's why we've put together this article with helpful information so you can make an informed choice.

Keep reading to learn more about what makes a great pre-emergent product and get our top picks!

We hope you enjoy reading our reviews you can rely on! Each product was independently selected by one of our editors. Some may have been sent as samples for us test out, but all opinions in this article are our own. We may collect a share of sales or other compensation from the links on this page if you decide to buy something at no added cost to you. Thank you for visiting!

How We Chose The Best Pre Emergent For Lawns

Are you looking for the best pre-emergent for your lawn, but don't know where to start? With so many products on the market, it can be hard to decide which one is right for you.

You want something that will work without wasting your time or money on a product that doesn't do what it promises. But researching every option takes too much of your valuable time and energy.

We've got you covered! Our expert reviewers have done all the research and testing so that you don't have to. This article has everything you need to make an informed decision about the best pre-emergent for your lawns quickly and easily. So take a deep breath, relax, and let us help you find exactly what you need!

Why We Picked It

Scotts Halts Crabgrass & Grassy Weed Preventer is the perfect choice for lawns in need of pre-emergent weed control.

Its specially formulated formula prevents crabgrass and other unwanted weeds, like chickweed, all season long with just one application - saving you time and money.

Plus, this 20.12 lb bag can treat up to 10,000 sq ft., making it a great value!

Get your lawn looking its best with Scotts Halts Crabgrass & Grassy Weed Preventer.

What You Should Know

Scotts Halts Crabgrass & Grassy Weed Preventer is an effective pre-emergent weed control for lawns that effectively prevents the growth of crabgrass, chickweed and other weeds.

The 20.12-pound bag covers up to 10,000 square feet, making it ideal for larger areas.

This product is also designed to be applied in the fall in order to prevent winter weeds such as poa annua, henbit and chickweed from growing.

Additionally, this weed preventer is formulated to withstand adverse weather conditions such as rain and snow - meaning that after application, performance won't be compromised regardless of changing weather.

Furthermore, applying in the fall can also help control moss growth on your lawn throughout winter months.

Why We Picked It

Do you want to keep your lawn looking great without having to worry about weeds taking over?

The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control is the perfect solution! It covers up to 12,880 square feet and offers long-term protection from unwanted weeds.

All it takes is one application in early spring or fall for season-long protection.

Plus, this effective product will prevent new weed growth; not aid in eliminating existing weeds.

Get ready for a beautiful yard all year round with Barricade pre-emergent weed control.

What You Should Know

The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control is a reliable product designed to effectively prevent over 30 grass and broadleaf weeds.

It features an advanced DG Pro formulation, which allows for more particles per square inch of chemical and superior control of weeds.

It provides coverage of up to 12,880 square feet and contains 0.48% of the active ingredient prodiamine that can protect lawns without harming desirable plants.

This makes it a great choice for professional turf care experts who need an effective weed killer that won't harm their existing vegetation.

Why We Picked It

Liquid Harvest Mesotrione is the ideal pre and post-emergent weed killer for your lawn and turf grasses.

Its 8oz Professional Concentrate Bundle has an equivalent power to leading brands, but at a fraction of the price.

With its 40% active ingredient, it inhibits photosynthesis in susceptible plants while allowing cool season turfgrass to flourish without being overrun by weeds like dandelion or clover.

It's fast acting and easy to use thanks to its 8oz Spray Pattern Indicator that helps you target those pesky pests with precision!

Get rid of weeds quickly, easily and affordably with Liquid Harvest Mesotrione!

What You Should Know

Liquid Harvest Mesotrione is an effective pre and post-emergent weed killer for lawns and turf grasses.

This professional grade concentrate bundle is the equivalent of leading brands and targets over 46 broadleaf species of weeds, grasses, and other invasive plants such as Barnyard grass, Carpetweed, Chickweed, Clover, Crabgrass (large & smooth), Dandelion, Foxtail, Goosegrass, Henbit, Yellow Nutsedge, Purslane, Thistle, Wild Carrot and more.

For best results mix 4 - 8 oz. per 30 gallons of water per acre with a surfactant to increase effectiveness.

To easily mark lawns or turf grasses Liquid Harvest Lazer Blue is a 100% non-toxic and non-staining formula that can be mixed with herbicides, fungicides, pesticides and fertilizers.

Why We Picked It

Say hello to Quali-Pro's Prodiamine 65 WDG pre-emergent herbicide!

You won't have to worry about pesky grass and broadleaf weeds anymore. Ideal for both spring and fall use, this product provides season long control over crabgrass.

Plus, it comes in an easy-to-use 5 pound bottle so you don't have to hassle with messy refills.

With a flexible application window, you can look forward to a more efficient lawn care regimen that takes the guesswork out of eliminating undesired plants from your yard. In other words: say goodbye weeds - hello Prodiamine 65 WDG!

What You Should Know

This prodiamine 65 wdg 5lbs pre-emergent grass and broadleaf weed product is an excellent choice for any environment.

With its active ingredient prodiamine at 65%, this product prevents the growth of annual bluegrass, henbit, knotweed, chickweed, spurge, foxtail, and goosegrass.

This product can be used in nurseries, landscapes, turf sites, trees, and golf courses to provide a safe and effective pre-emergence solution.

Not only is it a perfect tank mix partner with fertilizers and iron solutions helping it to protect the environment but it also prevents these weeds from germinating effectively while allowing other desired plants to thrive.

Why We Picked It

Scott's Turf Builder Halts Crabgrass Preventer with Lawn Food is the ideal solution for stopping pesky crabgrass and protecting your lawn all season long.

This powerful formula starts by helping to prevent crabgrass from invading and then feeds your lawn for a fast green-up after a long winter.

Even if there is heavy rain, snow or freezing temperatures after you apply this product, it won't affect its performance!

By using Scott's Turf Builder Halts Crabgrass Preventer with Lawn Food, you can help keep your yard looking amazing all year round.

What You Should Know

This Scotts Turf Builder Halts Crabgrass Preventer with Lawn Food offers a fantastic solution for preventing crabgrass and promoting healthy growth in your lawn.

For best results, it is recommended to water the lawn within two to three days after application, with ¼ to ½ an inch of water from rainfall or watering.

It should be noted that this product cannot be used on dichondra or bentgrass lawns.

Furthermore, even if applied during winter weather conditions, performance of the product will not be affected.

This reliable product gives you assurance that your lawn will stay crabgrass-free and healthy all season long.

Best Pre Emergent For Lawns FAQ’s

Trying to find the best pre-emergent for lawns can be a confusing and daunting task.

You have so many questions about pre-emergents, but don't know who to turn to for answers. You're worried that you won't make the right decision when it comes time to buy.

Don't worry! We've got you covered with our list of Frequently Asked Questions about Best Pre Emergent For Lawns. With this information, you can purchase your next product with total confidence knowing that you made the right choice!

What happens if you put too much pre-emergent on your lawn?

Using too much pre-emergent on your lawn can have several consequences.

Firstly, pre-emergents are designed to control particularly noxious weeds and should only be used according to manufacturer instructions.

Applying too much of the product could lead to over-controller of weeds or unintended plants creating an unhealthy landscape with poor weed growth in general.

Secondly, when applied incorrectly, some pre-emergent products can burn grass, killing it if exposed to excessive droplets during application or by leaching into the root system after heavy rain or irrigation leading to a patchy looking lawn that detracts from overall landscape design.

For these reasons, it is essential that before using any herbicides you read the directions completely and apply them carefully and accurately as instructed by the manufacturer for best results on your lawn.

How often should you put pre-emergent on your lawn?

It is recommended to put pre-emergent on your lawn at least twice a year, in the early spring and late fall.

This will help to keep weeds from germinating and growing during these two times of year when they are most active.

You should also make sure to apply it according to the instructions on the label, as over-application can cause damage to your lawn.

Additionally, if you live in an area with extreme weather conditions or have a particularly dense vegetation cover, then more frequent applications may be necessary.

In any case, regular weed control practices such as mowing regularly and removing weeds by hand can help keep weed populations down in between pre-emergent applications.

How long does pre-emergent stay active?

The length of time pre-emergent stays active depends on the type of product used.

Generally speaking, pre-emergents that contain corn gluten meal may last from 6 to 8 weeks before needing to be reapplied, while inorganic materials such as ammonium compounds (e.g., ammonium sulfate) tend to persist for about 4 months.

Additionally, certain organic mulches and weed barriers can keep weeds down for up to 2 years if kept properly maintained.

Be sure to read the instructions carefully when selecting a pre-emergent product so that you know how long it will stay active in your particular situation.

What to do after applying pre-emergent?

After applying pre-emergent, it is important to wait until the product has been absorbed into the soil and the area is dry before planting.

Additionally, if rainfall is expected within 24 hours after application then it should be avoided as this can reduce the efficacy of pre-emergent.

Lastly, it is also recommended to water in pre-emergent if rainfall does not occur shortly after application as this will ensure that it penetrates deeply enough into the soil.

Following these steps can help maximize your pre-emergent's effectiveness and save time and money.

What month should pre-emergent be applied?

Pre-emergent herbicides are typically applied in late winter or early spring before the weeds start to sprout.

This ensures that the product is activated before the weeds have germinated and taken hold.

Applying pre-emergent too early can result in washout due to heavy rains, while applying it late will reduce its effectiveness as some of the weed seeds may have already germinated.

Professional landscapers recommend applying pre-emergents between February and April, depending on your region’s climate and soil conditions.

It is also important to follow recommended application rates for maximum effectiveness.

How long can you wait to water in pre-emergent?

It depends on the type of pre-emergent you are using, as some products may require you to water them in immediately after application while others can wait up to 72 hours.

It is always important to read and follow the instructions on your particular product label for exact timing requirements.

In general, however, it's best practice to water in your pre-emergent as soon as possible after application for the most effective results.

Additionally, make sure that when watering-in you are doing so thoroughly and consistently across all surface areas where pre-emergent was applied.

By following these steps correctly and paying attention to any specific instruction listed on your product label, you can ensure that your pre-emergent will be able to do its job properly and keep weeds at bay!

Is it OK if it rains after applying pre-emergent?

Yes, it is OK if it rains after applying pre-emergent.

Pre-emergents are designed to be water soluble and will break down in rainwater or irrigation water.

Rain helps move the pre-emergent into the soil for root absorption and can help activate some pre-emergents as well.

However, too much rain could wash away some of the application so make sure to reapply about once a month for maximum effectiveness.

Can I fertilize and pre-emergent at the same time?

Yes, you can fertilize and apply pre-emergent at the same time. 

However, it's important to keep in mind that pre-emergents need to be applied about four weeks before you will see weeds. 

Additionally, make sure to use a fertilizer specifically designed for your soil type as well as one that is appropriate for the season. 

By taking these precautions when applying both together, you can help ensure successful results with your lawn care routine.

How much rain is too much for pre-emergent?

The amount of rain that is too much for pre-emergent depends on the type of herbicide being used.

Generally, most pre-emergents will not be affected by light to moderate rainfall (less than 0.5 inches) within a few days after application.

However, heavy rainfall or flooding shortly after application may reduce the effectiveness of some products, especially if they are watered in before rain.

Therefore, it is best to wait until there is no chance of rain prior to applying any pre-emergent and water it in afterward if needed.

What happens if you don't water in pre-emergent?

If you don't water in pre-emergent, the pre-emergent will not be activated and won't have a chance to bind to the soil and prevent weed seeds from germinating.

Without proper watering, surface weeds can germinate before pre-emergent has an opportunity to work.

This could result in increased weed pressure later in the season, making it harder for you to successfully control weeds.

Therefore, it's important that when applying a pre-emerge herbicide product, these products should be watered in properly so they can be activated and have the maximum benefit of controlling weed growth.

Does pre-emergent stop all weeds?

No, pre-emergent does not stop all weeds from growing. Pre-emergent is a preventive measure that is deployed before any weeds are visually present.

It creates an invisible barrier in the top 1" to 2" of soil, preventing weed seeds from germinating and sprouting into visible plants.

However, some hardy perennial weed species or seeds may still be able to push through the barrier over time.

Pre-emergent should always be supplemented with regular cultivation practices to ensure no new weeds take root in your lawn or garden.

Can I apply pre-emergent twice?

Yes, you can apply pre-emergent twice. Pre-emergent herbicides are typically used early on in the growing season to prevent germinating weed seeds from becoming established.

Applying pre-emergent twice during your growing season is a great way to ensure high efficacy of weed suppression since you're targeting both late and early germinating weeds.

If applying pre-emergent more than once during the season, the optimal times are late Winter/Early Spring, then again in Early Fall.

What is the longest lasting pre-emergent?

Pre-emergent herbicides are designed to prevent germination and emergence of unwanted weeds. The longevity of pre-emergents can depend on a variety of factors, such as the type of product and how often it is applied.

Generally speaking, products with longer lasting control tend to be those that provide beneficial soil residual activity; these widely range from 2 months up to 6 months depending on the product label instructions.

Some granular products contain polymer coated technology which can extend the persistence beyond 6 months, making them some of the longest lasting pre-emergents available in today's market.

For specific questions regarding which products may best suit your needs, consult a local garden center or relevant specialist for tailored advice on finding the right solution for your weed problem.

What temperature do you apply pre-emergent?

The temperature at which pre-emergent should be applied depends on the product being used.

Generally speaking, it is usually recommended to apply pre-emergent when temperatures reach between 50 and 65 degrees Fahrenheit.

Be sure to carefully check the instructions of your particular product as different products may require a slightly different application temperature.

Additionally, it is important to keep in mind that air temperatures can differ greatly based on location, time of day, and season so additional factors should be taken into account before applying pre-emergent.

How long should you wait to mow after pre-emergent?

For best results when applying pre-emergent, it is recommended that you wait for 12 to 24 hours before resuming lawn mowing activities.

Additionally, avoid mowing the grass too low after pre-emergent application and refrain from fertilizing until the actively growing season.

It is also important to water your lawn regularly following use of even the best pre emergent herbicide in order to help your lawn stay healthy which will work to choke out the weeds that you don't want.

Should I fertilize before or after pre-emergent?

The answer depends on the type of pre-emergent you use.

Generally, it's best to fertilizer your lawn before the pre-emergent application so that it can be absorbed by your soil and grass during the growing cycle.

When applying post emergent herbicides, then fertilizing after applying is preferable since fertilizing before will reduce the effectiveness of the treatment because you would be fertilizing the existing perennial weeds.

Regardless of whether you are applying a pre or post emergent herbicide or even fertilizer, it's important to incorporate light raking or aeration to help ensure maximum absorption and distribution throughout your lawn.

What are the benefits of using liquid pre emergent herbicides over granular pre emergent herbicides?

Using a liquid pre emergent herbicide over a granular pre emergent herbicide offers several major benefits.

Liquid products are an easier way to apply pre emergent herbicide can make a more cost effective way to control weeds over larger areas.

The best pre emergent herbicides can be mixed directly in water tanks or by adding them directly into the spray tank with water.

These products also offer excellent coverage along sidewalks and driveways, in addition to spot treatments or broadcast spraying on large areas of turf grass.

Finally, liquid herbicides provide better penetration of the soil than granular products for better longterm control of grassy weeds.

Either way, you will need the appropriate equipment to apply your product with either a pressurized or battery powered sprayer for liquid products or a lawn spreader for granular products, so that will need to be taken into consideration also.

Best Pre Emergent For Lawns For You

Choosing the right pre-emergent for your lawn can be a daunting task. However, with careful research and consideration of your location’s climate and soil type, you should be able to find one that meets all of your needs. By using these tips, you will have everything needed to ensure that you are taking proper care of your lawn while also keeping unwanted weeds at bay! We hope our article has helped you make today's purchase decision.

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