Product Overview

The Scotts GrubEx1 Season Long Grub Killer (99610) is a granular lawn treatment designed to prevent damage from root-feeding grubs all season long. One 28 lb. bag treats up to 10,000 square feet, making it a great option for homeowners looking to maintain a healthy, green lawn with minimal applications.

GrubEx1 targets the larval stage of beetles like Japanese beetles, June beetles, and chafers before they can hatch and feed on grass roots. Applied in early spring through late summer, it stops grubs before they start causing patchy, yellowing turf or attracting digging pests like raccoons and skunks.

Unlike quick-kill insecticides that only treat existing grub populations, GrubEx1 works preemptively, delivering up to 4 months of protection with a single application.

Technical Specs

• Brand: Scotts
• Model Number: 99610
• Product Type: Granular grub killer
• Coverage Area: Up to 10,000 sq. ft. per 28 lb. bag
• Application Timing: Spring to early summer for best results
• Effectiveness Duration: Up to 4 months
• Targets: White grubs, Japanese beetle larvae, June beetle larvae, chafers
• Formulation: Ready-to-use granules
• Use Case: Preventive lawn pest control

What It’s Good For

This product is ideal for homeowners who’ve dealt with grub damage in past seasons or want to prevent it before it starts. It’s a simple, one-time treatment that provides months of protection against the underground pests that ruin lawns from the roots up.

Compared to Other Lawn Treatments

Unlike traditional insecticides or spot treatments, GrubEx1 is applied once per season and provides long-term coverage. It focuses on stopping grubs early, while other products may only work after damage has already begun.

Also Known As

• Scotts GrubEx
• GrubEx1 Season Long Grub Killer
• Scotts 99610 Lawn Pest Control Granules
• Scotts GrubEx 28 lb. Bag Grub Killer