4.6 out of 5 Customer Rating
Scotts® GrubEx®₁ Season Long Grub Killer is rated 4.0 out of 5 by 280.
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Scotts

GrubEx₁ Season Long Grub Killer

$59.49
4.6 out of 5 Customer Rating
Scotts® GrubEx®₁ Season Long Grub Killer is rated 4.0 out of 5 by 280.
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Scotts
GrubEx₁ Season Long Grub Killer
$59.49

Don't let grubs ruin your lawn. This product stops grubs before they can do damage, keeping your lawn healthy and beautiful all season long. One application in the spring or early summer is all it takes to protect your lawn from these hidden destroyers.

99610

Key Features

  • SEASON-LONG GRUB CONTROL: One application is all you need to protect your lawn from grubs and their damage for up to 4 months, so you can enjoy your yard worry-free
  • PREVENTS TURF DAMAGE: Stops grubs and other listed pests before they can create brown patches and destroy your grass's roots, ruining the lawn you've worked so hard on
  • APPLY IN SPRING OR EARLY SUMMER: Timing is everything - apply this product anytime from spring to early summer to stop grubs as they develop and protect your turf from damage -

You've put in the work, and your lawn is your pride and joy. But there's a hidden enemy lurking just beneath the surface. Grubs work underground, feeding on roots and destroying your lawn from the inside out. With Scotts GrubEx, you can stop them before they even start. One application in the spring or early summer kills grubs as they hatch, protecting your lawn for the entire season. Think of it as an invisible shield for your turf. It’s your one-and-done solution for season-long peace of mind.

Active Ingredient: Chlorantraniliprole

Coverage: 10,000 sq. ft.

SKU: 99610

Product Label

Safety data sheet can be found at: https://www.scottsmsds.com

Where to Use: Apply to your entire lawn.

Where Not to Use: Do not apply to flowerbeds, vegetable gardens, or near water sources like ponds or streams.

When to Use: Apply once a year in the spring or early summer to prevent grub damage.

How Often to Use: Once a year. This product provides season-long control with a single application.

  1. Dial It In: Set your Scotts spreader to the setting listed on the bag.
  2. Apply and Activate: Walk at a steady pace to apply the granules to a dry lawn. Then, just water it in to get the product down into the soil where grubs live.
  3. Sweep It Up: Use a broom or blower to sweep any stray granules from driveways and sidewalks back onto the lawn where they can get to work.
  • Scotts Broadcast/Rotary Spreaders: 3 ¾
  • Scotts Drop Spreaders: 7 ¼
  • Scotts Wizz Spreader: 4 ¼

Watering after you apply is key. It "turns on" the product, moving it into the soil. A good 20-minute soak should do the trick.

  • Timing is Key: Get this down in the spring or early summer to stop grubs before they hatch.
  • Mow First: For best results, give the lawn a mow a day or two before you apply.
  • Sweep it Up: Be sure to sweep any granules that land on driveways, sidewalks, or streets back onto your lawn.
  • Kids & Pets: Once you've watered the product in and the lawn is dry, you and your family (including the furry members) can get back to enjoying it.
  • Gear Up: It's always a good idea to wear gloves when you're handling the product.
  • Wash Up: When you're done, wash your hands thoroughly.

Frequently Asked Questions

How do I store leftover product?

Easy. Just keep any leftover product in the original bag and store it somewhere cool and dry, like a garage or shed, where kids and pets can't get to it.

The sweet spot is spring through early summer. Applying then stops grubs right as they're developing, so they never get a chance to do damage.

You bet. Watering is what activates the product. It carries the protection down into the soil where those grubs are hiding out.

Absolutely. Just wait for the lawn to dry after you've watered it in, and then it's safe for everyone to get back out there and enjoy the yard.

This product kills Grubs (including larvae of Japanese beetle grubs, Asiatic Garden Beetles, Black Turfgrass ataenius, Aphodius spp., European chafers, Green June Beetles, May/June Beetles, and Northern masked chafers), Caterpillars (including Armyworms, Cutworms, and Sod webworms), Billbug grubs, and Crane fly larvae (including European Crane Flies). It also suppresses Chinchbugs.

Rated 5 out of 5 by from Great product ! I have great result with my grass it looks beautiful now. It is safe to used. Easy to understand instructions. Great consistency and the storage it’s good.
Date published: 2026-07-15
Rated 5 out of 5 by from Works wonders for clean grass This works wonders for the grass and kills all the bad eggs. This and was huge and covered a lot of ground. Affordable and was easy to wrap up if you don’t use it all.
Date published: 2026-07-08
Rated 5 out of 5 by from Outstanding I’m so glad I decided to put this all over my yard maintain it Appearance does not bother me. Not that noticeable texture is great results. I’ve been noticing that it’s been working. You just have to be consistent with it but overall works great, especially for the summer. Keep all the pest
Date published: 2026-07-08
Rated 5 out of 5 by from Helping Keep A Healthy Lawn :) It seems like it will work well. I definitely recommend this Grub killer for anyone with a lawn that suffers from this pesky issue it is easy to spread via spreading device, the package has instructions for spreading and storage so no guesswork there. Waiting for proper results due to the inclement weather in Chicago it is somewhat difficult to gage efficacy throughly just yet however there is slight progress. I will be repurchasing once I have finished the bag.
Date published: 2026-07-01
Rated 5 out of 5 by from Amazing Love the value for the bag. It’s easy to use and dosage is definitely right. With consistency I found it to work great. It doesn’t dry out the grass either it fixed all my patches.
Date published: 2026-06-30
Rated 5 out of 5 by from Works great!!! Scott's grub x season long grub killer apply spring to early summer kills and prevents grub up to 4 months treat 5000 ft stops white grub caterpillar Japanese beetle crane fly and bill bug I put it in my spreader and spread it all over the yard!!! Works great !!! Keeping them away from my yard
Date published: 2026-06-27
Rated 5 out of 5 by from GrubEx is easy to apply and works well as a preventative treatment against grub damage, helping maintain a healthier lawn overall. I’ve used GrubEx and it’s been really effective for preventing grub damage in my lawn. It’s easy to apply, works well over time, and has helped keep my grass healthier and more consistent throughout the season.
Date published: 2026-06-24
Rated 5 out of 5 by from GrubEx: preventive insecticide that protects your lawn for four months with a single application . I have been using Scotts GrubEx1 Season long Grub Killer for a few seasons now, and it is a total game-changer for my yard. Last year, my lawn suffered from massive brown patches due to a severe grub infestation.
Date published: 2026-06-21
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