7 Best Grub Killer For Lawns Reviews (Liquid & Granular)

When grubs eat the grassroots, the soil will loosen, the colors will fade, harming your garden as a whole. That’s why you need the best grub killer for lawns to remove grubs and other worms.

In terms of grub killers, they often come in 2 forms: liquid and granular insecticides. Choosing an organic insecticide is great, but you should also look for the proper active ingredients to achieve the best outcomes.

Sale
Scotts GrubEx1 Season Long Grub Killer, 14.35 lb.
3,213 Reviews
Scotts GrubEx1 Season Long Grub Killer, 14.35 lb.
  • One application in the spring or early summer kills and...
  • Helps prevent root damage caused by insects for a stronger...
  • Prevents turf damage by killing grubs when they are young

If you are still in the dark about buying the best grub worm killer, we highly recommend the Scotts GrubEx1 Season granular insecticide. It contains active ingredients that kill all types of white grubs and prevent them from coming back for up to four months.

Grub Killer For Lawns Buying Guide

Best Grub Killer For Lawns Reviews (Liquid & Granular)

Types of Grub Killer Products

Grub killers often come in 2 different types: granular and liquid (or spray grub killer).

Granular Grub Killers

Granular is the most common form of grub killers. They are convenient, easy to use, and can be applied directly to the garden as fertilizer.

You can follow these 3 simple steps: prepare a spreader, dissolve the granular powder with water, and pour the mixture into the soil, where it kills grubs upon contact.

Most granular grub killers are effective in burrowing and preventing the insects from damaging your lawns.

Many grub killer products can kill bad insects after 24 hours of applying thanks to their active ingredients including trichlorfon, dylox, and imidacloprid. They can cover a large area of your lawn as well.

However, some low-quality granules can also kill helpful insects such as earthworms and bees, which are very beneficial to your lawn as a whole. Therefore, you need to be very mindful when choosing lawn grub killers.

Liquid Grub Killers

Liquid (or spray) grub killers come in 2 types: concentrates and ready-to-use sprays. In concentrate form, you need to dilute it and connect your hose before applying.

One advantage of liquid grub is that it is quick to spray around your lawns or foundation areas. The liquid can kill grubs and insects on contact and has an immediate effect after applying.

However, one downside is that the spray can be less accurate and uneven, making it unsuitable for covering large areas. It is also riskier as the liquid can drift due to the wind, thus, harm your pets and children.

Best Grub Killer For Lawns Reviews (Liquid & Granular)

How Do You Notice If Your Yard Has Grubs?

Normally, the results caused by grubs on your lawn become obvious in mid-summer. To check the lawn yourself, consider lifting a few square feet of grass in your yard and look for grubs.

If your turf is healthy and strong, there’s no need to check your lawn at all. If there are signs of infestation, you should begin with the affected areas first. Therefore, it is best to buy a grub killer to maintain your lawn and have great looking turf for the whole summer.

Features To Consider When Buying A Grub Killer Product

Best Grub Killer For Lawns Reviews (Liquid & Granular)

Active ingredients are the most important

Grub killers’ performance varies due to their active ingredients.

When buying grub killers, opt for those effective, fast-acting active ingredients, such as trichlorfon, dylox, and imidacloprid. These ingredients can prevent grubs and insects for up to 3 or 4 months.

These ingredients are popular for killing grubs and other insects, including fleas, ticks, and white grub worms. Remember to look for ingredients that can kill Japanese beetle grubs and provide all season long grub control.

Find products that can kill more than grubs.

Grubs are not the only species that cause turf damage for your lawns. Additionally, there are also ants, chinch bugs, spiders, and other types of insects. These types of insects are much more damaging to your lawns as a whole.

Therefore, choose the best grub treatment that offers extra benefits that exceed beyond grubs.

The more insects that your product can eliminate, the better that grub killer product is. Remember to be mindful of all insects that inhabit your lawns.

Consider between chemical and organic grub killers

Some of the optimal grub killers contain chemical insecticides as their active ingredients. These ingredients are effective in fighting against many kinds of grubs and insects.

However, chemical grub killers can sometimes kill beneficial insects, such as bees or earthworms. Moreover, they are also dangerous and harmful to your children and pets. Therefore, be careful and let your grass dry before letting children back onto the lawn.

The ST Gabriel below is a great choice regarding organic grub control products because it is a milky spore. This natural bacteria is super sufficient in protecting your garden without using insecticides.

Decide whether to buy a grub killer or grub preventer

It is crucial to check whether your lawn has grubs or not. Most healthy gardens can tolerate some types of grubs without showing any symptoms.

If grubs have destroyed your lawn for several seasons, you should consider a 2-in-1 grub killer and preventer. Products containing 2-in-1 formula are very effective in killing grubs while they are still young and have not laid eggs.

For the best 2-in-1 formula grub killer, we highly recommend a product from Bayer Advanced (which will be reviewed later) to comprehensively protect your lawn from turf damage.

Watch how to get rid of grubs:

Best Grub Killer For Lawns Reviews (Liquid & Granular)

#1 Scotts GrubEx1 Season Grub Killer – Best Overall

Sale
Scotts GrubEx1 Season Long Grub Killer, 14.35 lb.
3,213 Reviews
Scotts GrubEx1 Season Long Grub Killer, 14.35 lb.
  • One application in the spring or early summer kills and...
  • Helps prevent root damage caused by insects for a stronger...
  • Prevents turf damage by killing grubs when they are young

This product is a perfect grub treatment when you want to protect your garden from damage by eliminating grubs when they are still young.

The Scotts GrubEx1 works more effectively than the original GrubEx as it kills 25% more grub worms. It can kill most white grubs, including Japanese beetle grubs, chinch bugs, or armyworms, and stop these from disturbing your garden for up to four months.

It is best to apply GrubEx1 in spring or early summer to a dry lawn and add water to activate it for the optimal results. However, it is applicable for year-round uses.

What we like:

  • Kill various types of grubs
  • Highly effective
  • Easy to spread
  • Can combine with other Scotts spreaders

What can be improved:

  • Not able to get rid of moles

Verdict

This innovative formula from GrubEx1 will surely prevent your lawn from grub damage. It is effective during all seasons and easy to use, owing to the granular form.

#2 Bonide BND60360 Grub Control – Best Grass Protection

Bonide (BND60360) - Insect and Grub Control, Outdoor...
235 Reviews
Bonide (BND60360) - Insect and Grub Control, Outdoor...
  • INSECT KILLER - This pest control is great for use on...
  • PROTECT YOUR LAWN AND HOME - Insect and Grub Control is...
  • TOP TO BOTTOM PROTECTION - Product offers complete insect...

This fast-acting insecticide offers top to bottom protection for your lawn. It will eliminate insects both above and below the surface of the yard.

The Bonide can be used outdoors, in yards, and around the house’s foundation. It can effectively kill various species of ant, webworm, or bug for up to 3 months.

This product provides dual-action defense for soil and surface protection with the mix of imidacloprid and cyhalothrin, reaching its peak grub-eliminating potential in just 24 hours.

It is also easy to use, just mix it with water and put them all in a spreader and you are good to go.

What we like:

  • Complete protection for lawn
  • Contain powerful active ingredients
  • Fast-acting results

What can be improved:

  • Can kill beneficial insects

Verdict

With many active ingredients, the Bonide insecticide can save your garden from being destroyed by different types of grubs.

You can also apply this grub killer product year-round and still get desirable results.

#3 BioAdvanced 700750B Grub Lawns Plus Ant – Best Easy-to-use Product

BioAdvanced 700750B 24-Hour Grub Lawns Plus Ant, Tick, and...
1,525 Reviews
BioAdvanced 700750B 24-Hour Grub Lawns Plus Ant, Tick, and...
  • 24-HOUR GRUB KILLER: Delivers overnight results by killing...
  • KILLS ON CONTACT: Kills grubs on contact
  • PLUS INSECT KILLER: Also kills Ants, Ticks, Billbugs, Chinch...

This product from BioAdvanced is popular for its fast action when it comes to killing grubs. It also delivers remarkable results after 24 hours since the first application.

The advanced 700750B contains Trichlorfon DYLOX – an active ingredient that can boost its performance in killing a wide range of grubs, including ants, ticks, European crane fly, and more. This is also the reason why BioAdvanced can kill grubs immediately in just 24 hours.

Moreover, it gains the registration from the Environmental Protection Agency – ideal for environmentally-conscious consumers. The application is utmost simple, spread the granules evenly on your lawn from border to center.

What we like:

  • Work on various insects
  • Fast action overnight
  • EPA approved

What can be improved:

  • Can’t kill grubs when they are young

Verdict

The advanced 700750B comes in granular form, which is very easy to apply to your yard.

It works sufficiently on most types of insects and grubs, therefore keeps your lawn from being attacked by these bothersome creatures.

#4 Roundup Lawns Bug Destroyer – Best Insects Killer

Roundup for Lawns Bug Destroyer - Kills Ants, Spiders,...
552 Reviews
Roundup for Lawns Bug Destroyer - Kills Ants, Spiders,...
  • Kills 100+ listed insects by contact and keeps on killing...
  • Kills insects above and below the lawn's surface, including...
  • For residential lawns, landscaped areas, and ornamental and...

If you want to eliminate all insects in your lawn, the Roundup Bug Destroyer will be a perfect match. It can kill up to 100+ listed insects such as ants, cutworms, ticks, sod webworms, and so much more.

It is ideal to use the Roundup Bug Destroyer on lawns and landscapes or ornamental and flower gardens without sacrificing their scenery.

To prevent infestation, you should apply this granular-formed product in the spring or early summer and evenly water the treated area.

What we like:

  • Remove 100+ types of insects and grubs
  • Easy and convenient to use
  • Use on various types of gardens

What can be improved:

  • Can kill beneficial earthworms

Verdict

To completely prevent your lawn from turf damage and disturbing insects, the Roundup Bug Destroyer would be an excellent choice. With the dual-action formula, it can bring you a long-lasting effect of up to three months.

#5 ST GABRIEL 80080-P Milky Spore Grub Control – Best Organic Grub Killer

Sale
ST GABRIEL ORGANICS 80080-P Milky Spore Grub Control Mix...
1,141 Reviews
ST GABRIEL ORGANICS 80080-P Milky Spore Grub Control Mix...
  • 20 Lb. Milky Spore, Grub Control Spreader Mix
  • Organic Compound That Attacks Larvae Of Japanese Beetles
  • Apply With Spreader Anytime From Spring Through Fall

Unlike other chemical products, this organic grub control from ST Gabriel gets rid of grubs effectively without harming helpful insects.

Milky spore is a natural bacteria that eliminates grub worms before they mature into dangerous and destructive lawn destroyers. This grub control is specialized in removing Japanese beetle grubs but other grub worms won’t escape its powerful grip either.

Moreover, it can eliminate grubs for a significant period of 15 to 20 years on a 7,000 square feet lawn, providing gardeners the best and long-lasting coverage.

What we like:

  • Organic ingredients
  • Does not kill beneficial insects
  • Safe for pets

What can be improved:

  • Expensive

Verdict

If you seek a non-toxic, organic grub killer, opt for this brilliant grub control from the ST Gabriel brand. Although the product is a little bit pricey, you won’t regret it considering all the amazing features.

#6 Bayer 687073007107 Season Grub Control – Best Formula

This product from Bayer Advanced (now BioAdvanced) contains a unique 2-in-1 formula that fights grubs. It is also a plus turf revitalizer that promotes stronger roots for your grass.

With the innovative formula, the Bayer Advanced Season removes insects and grubs, such as mole crickets, crane fly larvae, and other grub worms. You need one application to handle these grubs all season long.

It is best to apply this grub control when you see the first infestation when the grubs are still young.

What we like:

  • Excellent 2-in-1 formula
  • Season-long protection
  • Prevent damage before it begins

What can be improved:

  • Can kill earthworms and bees

Verdict

If you seek an innovative granular grub killer, you can’t go wrong with the Bayer Advanced Season. It can provide the ultimate coverage all season long with just one application.

#7 Spectracide Triazicide Acre Plus Granules – Best Insect Killer For Large Lawn

Spectracide Triazicide Acre Plus Insect Killer For Lawns...
127 Reviews
Spectracide Triazicide Acre Plus Insect Killer For Lawns...
  • KILLS LAWN INSECTS: Use outdoors on lawns and as a band...
  • ACRE PLUS: Treats up to 44,000 square feet of lawn.
  • KILLS ON CONTACT: Treat when insects first appear or when...

Our last pick is easy to use and contains fast-acting ingredients that can bring you remarkable results shortly after applying. Being able to treat up to 44,000 square feet of lawn, the Spectracide Triazicide is a powerful grub killer for spacious gardens.

Spectracide kills grubs on contact and is most effective when applied upon the insects’ first appearance. It can also fight against various insects, including billbugs, fleas, armyworms, European crane flies, and other listed insects.

It is advisable to wait until the grass is dry after the application, then water the yard lightly for the best results.

What we like:

  • Large coverage
  • Easy to use
  • Contain fast-acting ingredients

What can be improved:

  • Require regular application

Verdict

The Spectracide Triazicide is an effective grub killing product that can be used on large lawns or gardens. With fast-acting ingredients, it can protect your lawn from disturbing insects and grubs.

Conclusion

If you want your lawns to be green, healthy, and clean all season long, you should get a decent grub killer to prevent various types of grubs from damaging them. Grub killer products are also of great help as a preventive treatment.

After proper testing, we can confirm that the best grub killer overall belongs to the Scotts GrubEx1 Season Grub Killer and the Bonide BND60360 in terms of performance, usage, and safety.

They have proved to effectively protect many gardens throughout the country, and hopefully soon yours, too.

Last update on 2021-01-18 / Affiliate links / Images from Amazon Product Advertising API

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Jill Sandy

Jill Sandy

Jill is a sustainable focus gardener. She loves decorating her home backyard with beautiful landscape design and creative garden care techniques she develops herself. You can reach her at [email protected]

Chanh Ho (MD, MPH)

Chanh Ho (MD, MPH)

Chanh is our Head of Medical Review. He is a research physician at Oxford University Clinical Research Unit. After accomplishing the program of level 1 sub-specialty in Pediatrics, he was awarded the Chevening Scholarship for his Master’s degree of Public Health in the University of Edinburgh in 2019

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