Season-Long Grub Protection for Your Lawn
Active grub larvae can quietly weaken your lawn by feeding on grassroots, leaving brown patches and a fragile feel underfoot. Scotts GrubEx1 Season Long Grub Killer provides a proactive approach: applied to a dry lawn in spring or early summer, the granular formula starts working as grubs begin to develop, helping shield turf from damage before it shows up as thinning or loose turf. While results vary with conditions, many DIY homeowners appreciate the straightforward application and the sense of control it offers over a pest that becomes active each season.
Benefiting more than just grubs, the formula also targets caterpillars (armyworms), May/June beetles, and other listed pests, and it can help suppress chinchbugs. When used annually, it may contribute to managing Japanese beetle pressure as part of a broader lawn care routine. The product is designed for a single annual application and requires water to activate for best results.
Why choose Scotts GrubEx1
- Season-long protection: a single application can cover a full growing season, reducing recurring grub risk
- Granular formulation for consistent coverage and ease of use with standard spreaders
- Targets multiple pests beyond grubs, including armyworms and beetles
How to apply
- Apply to a dry lawn in spring or early summer when grubs begin to feed
- Spread evenly with a Scotts broadcast/rotary spreader at 3 1/2 setting, or 5 1/2 for drop spreaders; Wizz at 3 3/4
- Water in thoroughly to move granules into the root zone and activate the product
- Limit to one application per year and wait for the lawn to dry before turning people or pets back onto the grass
Coverage and practical notes
One 28.7 lb bag covers up to 10,000 sq ft, offering a convenient quantity for medium to large lawns. For best results, pair with your regular lawn care schedule, and follow label directions for storage and handling. After application, allow the lawn to dry before heavy traffic to support safe re-entry for family and pets.
In real-world use, homeowners appreciate the simple, one-time-per-year approach that aligns with other seasonal tasks. While no lawn product can guarantee dramatic transformations, Scotts GrubEx1 provides a practical option for ongoing grub control as part of a broader lawn maintenance plan.
















