Scotts GrubEx1 season-long grub killer granular for 5,000 sq. ft. — single application, 4-month control

Scotts GrubEx1 Season Long Grub Killer is a single-application granular treatment that kills and prevents lawn grubs and several other pests for up to four months across 5,000 square feet.

If you’ve found patches of brown, spongy turf or noticed beetles and caterpillars around your lawn, grub feeding on roots may be the cause. Scotts GrubEx1 is formulated for DIY use to interrupt grub life cycles early in spring or early summer, protecting grass roots and reducing the visible signs of damage. The product is a granular insecticide designed to be applied with a broadcast or drop spreader and activated by thorough watering.

How does this product stop turf damage?

Scotts GrubEx1 targets newly developing grubs before they can consume significant root mass. It uses a season-long active ingredient that remains effective for up to four months after a single treatment, reducing the need for repeated applications during the season.

• Kills grubs while they are small and feeding on roots.
• Provides up to four months of activity from one application.
• Also affects caterpillars, May/June beetles, and helps suppress chinchbugs.

When and how should I apply it for best results?

Apply to a dry lawn in spring or early summer when grubs are developing just below the soil. Spread the granules evenly with a lawn spreader, then water thoroughly to move the product into the root zone where grubs feed.

• Apply only once per year; maximum one application annually.
• Use Scotts spreader settings: broadcast/rotary 3½, drop 5½, Wizz 3¾.
• Water in immediately after application and allow lawn to dry before re-entry.

What pests besides grubs does it control?

In addition to white grubs, this formula addresses a selection of turf-feeding insects common to lawns. Results vary by pest and region, and it is most effective against pests listed on the label when applied at the recommended time and rate.

• Controls caterpillars such as armyworms and certain beetles including May/June beetles.
• Helps suppress chinchbugs and can reduce Japanese beetle populations with annual use.
• Works as part of an integrated lawn care plan—combine with proper watering and mowing.

How much area does one bag cover and what equipment is recommended?

One 14.35 lb bag treats up to 5,000 square feet when applied at the specified rate. A consistent, even spread is essential for effective control, so using a calibrated spreader is recommended.

• Bag size: 14.35 lb; coverage: 5,000 sq. ft.
• Recommended spreader settings are provided for Scotts broadcast/rotary, drop, and Wizz spreaders.
• People and pets may return to the lawn after granules have been watered in and the surface is dry.

Who is this for: Scotts GrubEx1 is intended for homeowners and property managers who want an easy, single-application solution to reduce grub-related lawn damage across a medium-sized yard. It’s best for users comfortable following spreader calibration and watering instructions, those focused on preventative timing in spring or early summer, and anyone seeking to include grub control in routine lawn maintenance without multiple seasonal treatments.