Weed And Seed Spray

Get your FREE Guide To Fall Seeding from the Lawn Care Nut featuring questions and answers about spraying weeds leading up to the seeding, you do NOT have to kill all the weeds at once and more now! Read on to learn how weed killers work and see why recommendations for the top weed killers. Keep your outdoor space free from unwanted growth with a weed killer. We researched the best formulas to help you find the right one for your yard.

Weed And Seed Spray

Since releasing this year’s FREE Guide To Fall Seeding we have had some questions come about spraying weeds now leading up to the seeding. In and this blog post will answer those.

First off, you do NOT have to kill all the weeds. The winter is going to kill them for you and having a few here and there will not get in your way too badly. However, if you have had a big emergence of crabgrass in your lawn (where it is all you can see), you will want to try and knock that back some – mainly so it doesn’t go to seed on you.

It’s probably hard for you to tell, but this lawn here is in Munster, IN and this is 99% crabgrass.

Here is what it looks like up close:

If this is you, you will want to spray this and start knocking it down. Leaving it in there is good because it will help hold your seed in place but for sure, if your lawn is this thick with crabgrass, hose it good with quinclorac , quincept or mesotrione leading up to seeding following the recommendations below.

Note on Details:

I’m going to get highly detailed here because I respect you and your intelligence. You’re smart and therefore you can and should seek to understand these chems so you can get the proper result from using them and have no fear of them. I respect the fact that once you take the time to understand this example, you will be better at discernment of similar questions in the future and thus you will be more confident in your approach and strategy. In other words, I’m not going to talk to you like you’re dumb and just tell you what to do. Instead I’m going to teach you like a professional. I hope you are good with that.

Second, I respect the green industry and the lawn pros who make their living doing this day in and day out. When you use professional formulations of products like the ones listed here, I now view you on their level and that also means we need to stay within the bounds of the label which is the law. If you see YouTubers or social media influencers out there not following the label, including me, you should call them/me out. Everyone makes mistakes here and there, but it’s their reaction to being called out that truly shows their intent. I like to think everyone means well and is willing to admit when they are wrong.

Can I Spray Weeds and Kill Crabgrass Now if I Plan to Seed In September/Fall Time?

This is the most common question and it’s difficult to answer for all of you so I’m going to show you how to find the answer for yourself using 2 examples.

Reading The Label – Quinclorac 75DF

Key: The answer to your question is on the label. Labels of weed control products almost always tell you the wait time until seeding after application. Let’s look at two that you likely may be using.

First one is quinclorac . This is the first choice active ingredient that kills crabgrass that you may be seeing. If your lawn is covered in crabgrass like a carpet – especially through the middle or meaty part of the lawn, you will want to kill it off or at least stunt it really well before seeding.

The formulation most of you have is the “DF” which stands for “dry flowable” which means it’s small granules that you put in water to make a solution to spray. The concentration is 75% quinclorac.

Here’s the trick to reading labels fast. Find the PDF online. Make sure it is the VERY SAME product you have in hand. DoMyOwn is a great resource for this .

Once you pull up the label, hit “command F” on Mac or “control F” on PC and this opens up a search window. Type the word “Seed” in that window and it will reveal how many times that word appears in the label PDF.

Use the down arrows in that window to “scroll” through all the instances where that word appears. As I did this, I found the following very quickly.

So we can see that for certain types of seedings, this product won’t cause any harm at all but we have to scroll down to the tables 1 and 4 to get the details. Table 1 is going to tell us the grass types that are “highly” and “moderately” tolerant and table 4 will tell us the timing of the applications for ANY seeding.

This is where it sometimes gets confusing so follow along with me.

Here is Table 1

So what this is telling us is that you can use Quinclorac 75DF on established grasses listed as “highly” or “moderately” tolerant. That is really all this chart is for. It has nothing to do with seeding, hence the word “established.” But you still have to look at this chart first to find out if you should even use this product in the first place.

It’s main purpose is to tell you that you should not use this product on Bahia, Colonial Bent, Centipede or St Aug, period. Doesn’t matter if you are seeding or not, you should NOT use this product on these grass types. It also warns you about using it in or around fine fescues – they must be part of a blend if you do.

So in our case, where we are thinking about seeding the lawn, if we are planning to seed Bahia grass for example, then this product is out, 100%. No Bueno.

So if you passed the test on this part and are seeding Kentucky Bluegrass for example, then you need to next consult table 4 which is going to give you the timing of seeding both before and after.

Let’s stick with our example of Kentucky Bluegrass and you can see that it’s ok to apply quinclorac to the lawn to kill crabgrass 7 days before seeding or more. So right now, if you are let’s say 2 weeks away from seeding, you are welcome to spray away and kill that crabgrass dead. (note, this product turns crabgrass orange/red in about 6 days. But it takes much longer for the crabgrass to fully break down so likely some of it will still be there when you seed, just red and dead).

Also of note, if you have crabgrass living after or during your seed grow in, you have to wait 28 days after emergence (when you see it) before spraying. It’s important to understand what mix you are seeding in this case because if you have a tall fescue, bluegrass mixed seed , the tall fescue will emerge in about 10 days but the bluegrass won’t emerge for 18-21 days so you need to wait 28 days AFTER THE BLUEGRASS emerges before spraying quinclorac. If you really want to be safe, wait the 28 days and 1-2 mowings before applying – this adds some extra protection for the late bloomers as mowing encourages new grass to “harden off” quicker.

Reading The Label – Seeding and Tenacity – Mesotrione

( we have the generic which is cheaper FYI)I will throw this one in real quick because it’s a little different. We recommend this product for a pre-emergent application at the time of seeding. It will suppress certain weeds in your grow in. If you are new and inexperienced, DO NOT think you have to use this – your results will be ok without it. But if you do use it, people think they can just spray it anytime they want and this is not true.

See also  Best Weed Seeds For Cold Climate

You can spray it anytime you want leading up to seed day, and on seed day, but once your seeds germinate, you should NOT spray it again until the new gras has been mowed 2-4 times or 4 weeks whichever is longer.

So to be clear – you can apply this up to seeding, but once the seed germinates (4-5 days for rye, up to 21 days for bluegrass) you should NOT apply it to weeds until the new turf has been mowed 2-4 times or 4 weeks, whichever is longer. This is because baby grass is weak and can’t withstand/tolerate mesotrione .

Reading The Label – Speed Zone – Red Label

This is another weed control I have recommended heavily and they list right on the label in clear printing how long to wait until you seed. Keep in mind, this product has an 85F degree temp restriction anyway so many of you would not be using it in summer, but in case you did, here is the wait time after app before seeding:

Reading the Label – Quincept – New Farm

Ok now just as I make everything seem like it’s as simple as reading the label, NuFarm (who I love) comes in and just leaves it off their Quincept label completely . Maybe someone from NuFarm can Tweet me and let me know why y’all have left this off your label for so many years… is there a typo you have not corrected? I have read and read the label and this is all I can find – it’s all about “spraying after you seed” but nothing about “spraying before you seed.”

You can read that all you want, backward and forward and it only tells you about “after” seeding. And since I have recommended this weed control so heavily this year I feel like I need to provide an answer.

First off, when I worked for TruGreen ChemLawn, Quincept was our go-to weed control for summer and I remember that every year that right around 3 weeks before overseeding time we would get a memo telling us to cut off the Quincept use. The memo would come early but would read “stop spraying Quincept 2 weeks prior to starting your overseedings for customers.”

So that is my first clue as to the reseed window – it comes from my experience.

Next, I found a product that is similar to Quincept in that it has the same active ingredients plus one. That is Q4 Plus . It has very similar concentrations of the active ingredients within the Quincept plus one more. That product says this:

In short, if you are using Quincept, wait a minimum of 14 days after application to throw down your grass seed. I had to use some logic with this one and figured I’d share it just in case you are doing all the research and coming up empty. Now you know.

So there you go, all about reading labels for seeding – hope this has helped you and that your seeding will be successful this season!


Welcome to the official site of Allyn Hane, The Lawn Care Nut from YouTube. Here you will find my free newsletter that gives you much more than just the tip. I also carry the full line of N-Ext soil optimization products including RGS, Air8 and De-Thatch along with MicroGreen and Green Effect plus much more!

The Best Weed Killers for Your Lawn for 2022

Wondering how to choose the best weed killer for your lawn? Read on to learn how weed killers work, how to apply these products, and our recommendations for the top weed killers.

If your lawn is getting out of control with weeds, hand pulling them just isn’t going to cut it. Sure, you can tug out a few by the root, but it may be difficult and time-consuming to do that for your entire yard. That’s where weed killers come in, often the best method for lawn weed control.

There are tons of lawn weed killers on the market, so it may be difficult to choose the exact right one for your lawn. The This Old House Reviews Team has rounded up the top weed killers for 2022—and how to choose them. For extensive weed control and lawn care, we recommend considering a lawn company like TruGreen.

Identifying Weeds

Before you can choose the proper weed killer, you’ll have to determine exactly what type of weed you’re dealing with. Different weed types require different treatments—what’s effective for one may do little or no damage to another.

There are three main categories of weeds: broadleaf, grassy, and grass-like.

1. Broadleaf weeds

These weeds have broad, flat leaves, so it’s unlikely you’ll mistake them for grass. They thrive in soil that’s lacking key nutrients, and they come in different types—annual, biennial, and perennial, so different broadleaf weed varieties require different chemicals depending on their life cycle.

Examples of broadleaf weeds include dandelions, ground ivy, clover, chickweed, dollarweed, thistle, and oxalis.

2. Grassy weeds

Grassy weeds have leaves that look like grass blades, and they grow one at a time. Examples of grassy weeks include crabgrass, quackgrass, goosegrass, and foxtail.

3. Grass-like weeds

This weed type resembles grass, but its leaves are more tube-like and triangular than flat. Examples of grass-like weeks include garlic, nutsedge, and wild onion.

How Weed Killers Work

Weed killers work by using chemicals that kill the weed or prevent its growth. There are a variety of different herbicide types to treat weeds at different stages of their life cycle—or before they even sprout. Here are the main characteristics to consider when choosing your specific weed killer.

Pre- or post-emergent

Pre-emergent weed killers target weed seedlings before they get a chance to sprout. If weeds have already popped up, this type won’t help. Post-emergent weed killers are designed to eradicate weeds in their active growing season. You apply post-emergent weed killers directly to the plants’ leaves.

Selective or non-selective

This aspect is critical. Selective weed killers eliminate weeds without harming beneficial plants nearby, while non-selective herbicides will damage all nearby plants, even if they’re beneficial.

Systemic or topical

Systemic weed killers attack the entire plant, including the roots. Topical herbicides, on the other hand, only kill the areas where the weed killer is applied.

Persistent or non-persistent

Persistent weed killers stay active after you apply them to prevent future weeds. Non-persistent weed killers don’t offer ongoing weed control.

How to Apply Weed Killer

Even if you select the right weed killer, applying it incorrectly can make your efforts fruitless, and the wrong application can cause complications.

Many weed killers need to be diluted with water and put in a spray bottle. The product’s label will explain precisely how much water and weed killer you’ll need to combine. Some weed killers, however, come in granular form. Solid weed killers must be applied with a spreader.

When applying weed killer, timing is everything. You don’t want to apply weed killer immediately after mowing your lawn since that could harm your tender grass. The same goes for fertilizer. In both cases, wait several days before applying weed killer.

The weather also plays a role in when to apply weed killer. Applying weed killer when it’s too hot can stress your grass, and applying it right too soon before it rains means it can wash away before it gets absorbed.

The 3 Best Weed Killers

Here are the top three best weed killers for 2022.


This powerful, fast-acting weed killer battles the exterior part of the weeds it contacts as well as the root systems. It kills stubborn weeds very efficiently, and spraying weeds selectively will ensure your lawn stays intact.

Preen Garden Weed Preventer

This pre-emergent, selective weed killer offers residual effects, with ingredients remaining active in the soil for three months after application. Preen prevents nearly 30 broadleaf weed varieties without hurting nearby plants.

Scotts Turf Builder Weed & Feed

Scotts’ most powerful weed and feed thickens grass while crowding out weeds. It’s especially effective against dandelions and clover. The company offers a satisfaction guarantee, promising your money back if you aren’t satisfied with your results.

See also  Are Weed Seeds Legal In Uk

Top Recommended Professional Lawn Care Company: TruGreen

If you’re battling stubborn weeds or confused about what weed killer is best, it may be time to call in the experts. The This Old House Reviews Team’s top selection for lawn care, TruGreen, offers both pre and post-emergent weed control.

The specialists at TruGreen can create a custom-made plan to restore your lawn to its former health and make sure it can compete against future weeds. The lawn care company offers five annual plans with varying levels of coverage in every state except for Alaska and Hawaii.

*First application. See quote for terms and conditions.

How to Prevent Weeds

When it comes to tackling weeds, the best defense is a good offense. You should always take these steps to keep your grass hardy and robust, reducing the chances of weeds taking over.

  • Water deeply and infrequently—If you want your grass to have strong, deep roots, you need to water deeply and infrequently instead of choosing shallow, daily watering. With deep, sturdy roots, your grass can grow nice and thick and compete with weeds that may try to grow.
  • Mow high—Weeds need sunlight to grow. If you let your grass blades grow taller by setting your lawn mower to the first or second highest setting, the grass will grow tall enough to cast shade on any weed seeds, preventing them from sprouting.
  • Feed regularly—Stressed lawns are more susceptible to being crowded by weeds. Feeding regularly will keep your lawn lush and make it less hospitable to enterprising weeds.

Our Rating Methodology

To provide readers with the most objective, accurate, and detailed recommendations, the This Old House Reviews Team continually researches lawn care service companies on the market. We take the following steps to obtain up-to-date information about the industry and each company we review:

  • Analyze more than 100 customer reviews from third-party review sites, such as Yelp, the Better Business Bureau (BBB), and Google Reviews, for each company
  • Secret-shop for lawn care plans and packages to get a sense of cost, offered services, and the overall shopping experience for prospective customers
  • Speak with representatives on the phone to simulate the customer service experience from each provider
  • Update information on a regular basis to ensure the most accurate information when plans or services change with each company

We use the data from our research to build an in-depth rating system that allows us to score lawn care providers on a 100-point scale. Here are the factors in our evaluation and their designated scores:

  • Plan options (30): As one of the most important factors for homeowners shopping for a lawn care service, this one is weighted heavily based on each company’s lawn coverage. Companies that offer more options, such as irrigation, weed control, seeding, and aeration services in addition to a general plan, score higher than others.
  • Trustworthiness (30): Each company’s reputation is another significant factor for homeowners to consider before signing up for a plan. We scored providers based on their BBB score, accreditation, and offered guarantees available with each purchase.
  • Additional Benefits (20): We gave extra points to companies that provide a few additional services and benefits with their offered plans, such as organic treatments, pest control services, and a mobile app for digital communication and plan management.
  • Customer Service (10): In this rating category, we awarded points to customer-focused lawn care service providers who offer weekend availability and easy communication through phones, online chats, and online resources.
  • Availability (10): We also scored companies based on their overall availability, rewarding those that are nationally available over local companies only operating in select cities or ZIP codes.

To share feedback or ask a question about this article, send a note to our Reviews Team at [email protected].

The Best Weed Killers to Use in Your 2022 Landscape

Our top pick is the Spectracide Weed and Grass Killer Concentrate

Amanda Rose Newton holds degrees in Horticulture, Biochemistry, Entomology, and soon a PhD in STEM Education. She is a board-certified entomologist and volunteers for USAIDs Farmer to Farmer program. Currently, she is a professor of Horticulture, an Education Specialist, and pest specialist.

Barbara Gillette is a master gardener, herbalist, beekeeper, and journalist. She has 30 years of experience propagating and growing fruits, vegetables, herbs, and ornamentals.

Jennifer Klump has been a fact-checker for The Spruce since 2019. She has 22 years of experience as a librarian conducting literature searches on health, wildlife, and education. Jennifer is a technical librarian with ASRC Federal, where she fields requests related to air quality issues for the EPA.

We independently research, test, review, and recommend the best products—learn more about our process. If you buy something through our links, we may earn a commission.

The Spruce / Sabrina Jiang

Weed killers ensure that your landscape looks its best year-round, without invasive weeds, crabgrass, dandelions, or sedges. We researched numerous weed killers and evaluated each on several key features, including how easy it was to use, the length of protection it offers, and the value for the price point.

Here are our top picks for the best weed killers.

Best Overall: Spectracide Weed and Grass Killer Concentrate

Courtesy of Home Depot

Kills weeds and grasses

Rainproof after 15 minutes

Use on hardscapes

Pump sprayer recommended

Can kill unprotected grass

Spectracide is a popular choice for areas where quality results count, such as golf courses, sports stadiums, and turf grass. And its quality and strength come from its diversity. You can apply it to flower beds, around trees, and even hardscapes, such as walkways and patios. You can expect results the same day it’s applied, and it is weatherproof within 15 minutes.

Coming in a 64-ounce container, you must dilute it first and then apply it with a tank sprayer. Alternatively, Spectracide comes in a ready-to-use spray format. To achieve the best success and reduce spray drift, apply it during warm, sunny days with minimal wind.

Price at time of publish: $43

Application Type: Spray︱Targeted plants: Broad-leaf Weeds︱Rain Resistance Time: 15 minutes︱Volume: 16 ounces, 32 ounces, 40 ounces, 64 ounces, 1 gallon

According to Iowa State Extension, rain resistance is the time a herbicide needs to remain on its target before rain falls on it since water can dilute its effectiveness. Product packaging should contain this information.

Best For Lawns: Southern Ag Amine 2,4-D

Effective against many hard-to-get-rid-of weeds

Works on all grass types

Does not burn grass

Toxic, requires re-entry period

Southern Ag 2,4-D ensures that weeds do not ruin the look of your hard-earned beautiful grass. This concentrated formula targets broadleaf weeds such as clover, dandelions, and even crabgrass. It is an excellent value for the money, as all you need is a mere tablespoon per gallon of water.

Once diluted and sprayed, it kills weeds fully within three days, with visible results apparent within 30 minutes. It should be noted that 2,4-D is toxic to people and pets, so it is recommended that you not use the sprayed area for 24 hours.

Price at time of publish: $19

Application Type: Spray︱Targeted plants: Broadleaf Weeds︱Rain Resistance: None︱Volume: 32 ounces

Best Indoor: Ortho Weed B Gon Chickweed, Clover & Oxalis Killer for Lawns, 16oz.

Targets tough weeds such as dandelions

Rainproof within an hour

Advised not to use around pets

Selective herbicides, such as Ortho Weed B Gon, target weeds without harming the grass. From dandelions to clover, Ortho kills over 200 weeds at a great price point. Coming in multiple sizes, a single gallon should cover 64,000 square feet, nearly the size of a soccer field.

Since this product kills weeds at the roots, you should see results the same day; noticeable weed demise within 30 minutes has been reported. Perfect for northern and southern grass types, the formula is rainproof within an hour.

Price at time of publish: $11

Application Type: Spray︱Targeted plants: Broadleaf grasses like dandelions and clover︱Rain Resistance Time: 1 hour︱Volume: 16 ounces, 32 ounces

Best Along Fences: Gordon’s SpeedZone Lawn Weed Killer, 20 Oz.

Gordon’s Speed Zone effectively keeps weeds from growing under fence lines or creeping into lawns. A combination of 2, 4-D, dicamba acid, and carfentrazone-ethyl creates a dynamic weed killer capable of destroying over 200 species.

See also  Weed Seed Inhibitor

Gordon’s works best when you mow grass two days before or after applying the product and when rain is absent in the forecast. Unfortunately, this product is not rainproof, so it might not be recommended for locations with significant rainfall. Pets and children must avoid sprayed areas.

Price at time of publish: $41

Application Type: Spray︱Targeted plants: Broad-spectrum weeds︱Rain Resistance Time: None︱Volume: 20 ounces

Best Preventative: Preen Garden Weed Preventer + Plant Food

Can use around edibles

Contains plant food

Prevents 25+ kinds of broadleaf weeds

Does not control present weeds

Preen Garden Weed Preventer is designed to prevent weeds from popping up in your flower beds, around the base of trees, or even the vegetable garden. Its patented blend includes a plant fertilizer that helps keep your flowers blooming and vegetables growing—all while keeping weeds under control. Offering protection from nearly 30 broadleaf weeds, its granular format makes it less likely to blow onto your lawn.

The standout feature is how easily the product spreads. The bottle is designed with a convenient shaker cap: Just shake it over the intended area, add water, and you are done. Also, you needn’t worry about timing, as you can apply Preen at any point during the year. It is also safe to use around vegetables, bulbs, and over 200 other flowering plants.

Price at time of publish: $36

Application Type: Granular︱Targeted plants: Preventive against 25 broadleaf species︱Rain Resistance: None︱Volume: 7 pounds

Best Enabler: Hi-Yield Spreader Sticker

Use on all plants

Increases herbicide absorption

Works with insecticides, fungicides, and miticides

Does not control weeds on its own

Hi-Yield Spreader Sticker is a chemical enhancer, which helps improve the performance of the herbicide you are using. By increasing the herbicide’s ability to make its way into the plant tissue, it shortens the time needed to see results and increases the likelihood of success. This product is registered for use on most crops, grasses, trees, and shrubs.

You can use it as more than just a herbicide: Combine it with miticides, pesticides, and fungicides offering the same increased absorption power. Coming in at under $20 for a 16-ounce concentrate, you can get dozens of doses out of a single container.

Price at time of publish: $19

Application Type: Spray︱Targeted plants: None︱Rain Resistance: 1 hour︱Volume: 16 ounces

Best For Hot, Humid Weather: Ortho WeedClear Lawn Weed Killer

Intended for hot climates

200+ weeds controlled

Not recommended for northern grasses

Many herbicides are not meant to be applied in hot or humid weather, prevalent in the southern U.S. Ortho designed a special version of their popular Weed Clear line for the South. It is specially crafted and tested to ensure it removes weeds but shuns major grass types grown in the region.

Nor is rain a concern since Ortho Weed Clear is rainproof and ready to go in under an hour. It takes care of more than 200 broadleaf species, including tough-to-kill dandelions and crabgrass. The formula includes 2,4-D, so use caution in areas with heavy foot traffic.

Price at time of publish: $23

Application Type: Spray︱Targeted plants: Broad-leaf weeds including dandelions︱Rain Resistance Time: 1 hour︱Volume: 1 gallon

Best for Flower Beds: Fertilome Over The Top Grass Killer

Targeted weed control

200 + weeds controlled

Proper application is essential

Keep your flower beds looking picture-perfect with the Fertilome Over the Top Grass Killer II, which comes in a 16-ounce concentrate with a convenient hose attachment. Attach it to your hose, spray, and go! This herbicide kills tough weeds and grasses to the root, and its selective nature allows you to easily target annoying weeds without harming your flowers.

You can use this formula in and around vegetable gardens, flower beds, tree rings, and mulched beds, as well as on cracks in driveways, walkways, and patios. It is not rainproof, so it is best applied on days rain is not in the forecast. Mowing beforehand is also recommended.

Price at time of publish: $30

Application Type: Spray︱Targeted plants: Broadleaf weeds, including dandelions, Bermuda, and crabgrass︱Rain Resistance Time: None︱Volume: 16 ounces

Best Natural: Green Gobbler Organic 20% Vinegar Weed & Grass Killer

Courtesy of Amazon

Contains no harsh chemicals

Can be used in various places

No dilution needed

No smaller sizes available

Many weed killers contain harsh chemicals; however, Green Gobbler Vinegar Weed and Grass Killer is glyphosate-free and made without any synthetic ingredients. Derived from corn, it can take care of unwanted crabgrass, dandelions, clover weeds, white clover, mold, and more.

We tested this natural weed killer in a real-world going-over and successfully used it on driveways, sidewalks, concrete, mulch, and flower beds. You can expect to see visible results in less than 24 hours, and the manufacturer offers a 100 percent satisfaction guarantee. Because it is vinegar based, it is not weed-specific and can harm all grass and plants. Make sure you use it only in areas where weeds are present, not plants you want to keep.

Price at time of publish: $30

Application Type: Spray︱Targeted plants: Crabgrass, dandelions, and other listed weeds︱Rain Resistance Time: Not listed︱Volume: 1 gallon

“Once I used the weed treatment, I did not see the weeds return to my mulch beds even weeks after application. The same was true growing in the cracks on my driveway. I did pull the weeds after the Green Gobbler Vinegar Weed Killer killed the plants themselves. This was an important step to make sure that they didn’t come back.”—Katie Begley, Product Tester

The Spruce / Katie Begley

Best for Gravel: Ortho GroundClear Year Long Vegetation Killer

Can use in various places

Prevents weeds from growing back

Rainproof in an hour

Harms grass and desirable plants

Weeds popping up along walkways, the patio, or the driveway have their own challenges. You can eradicate them quickly with Ortho Ground Clear Weed Control. Unlike many formulas intended for hardscapes, it contains no harmful glyphosate. This concentrated formula comes in a 1-gallon container that makes up to 21 gallons of spray and treats more than 20,000 square feet (larger than a hockey rink). This product is ideal for locations where you want no vegetation, such as gravel paths, driveways, parking areas, fencerows, patios, and around buildings.

In addition to killing growing vegetation, it also prevents new weeds for up to a year. The formula is rainfast in one hour. You can buy it in assorted sizes, including one with a handy wand applicator, best suited for targeting hard-to-reach cracks and crevices.

Price at time of publish: $28

Application Type: Spray︱Targeted plants: All weeds, grasses, vines, brush, and trees︱Rain Resistance Time: 1 hour︱Volume: 1 gallon

Best for Large Areas: BioAdvanced Weed Killer for Lawns

Can use in various places

Prevents weeds from growing back

Rainproof in 2 hours

Not for certain plant and grass types

When you have a large area that needs to be treated for weeds, a concentrated solution can be more effective than a ready-to-use solution. Our pick for this option is BioAdvanced Weed Killer For Lawn. Covering 20,000 square feet (larger than a hockey rink), this spray features a handy hose attachment, making it easy to dilute and go.

You can use this herbicide on walkways, driveways, and beside buildings and fences to kill weeds, grasses, vines, and brush. The formula contains no glyphosate. It is rainproof two hours after application—though the manufacturer recommends applying it on a warm, sunny day, with no rainfall anticipated for 24 hours. You should see results in 2 to 4 days, as it kills the weeds down to the roots. Make sure your grass and nearby plants are on the safe list provided in the label instructions. Not for use on St. Augustine grass.

Price at time of publish: $13

Application Type: Spray︱Targeted plants: All weeds, grasses, vines, brush, and trees︱Rain Resistance Time: 2 hours︱Volume: 1 gallon