Answering the question “how do I kill grubs in grass?” with effective, season-long solutions. This guide highlights five reliable grub-control products that target grubs early, prevent turf damage, and help keep lawns healthy all season. Each option is best for different lawn sizes, application preferences, and depth of control. Use this guide to compare product scope, coverage, and practical limits before buying. The table below summarizes the essentials at a glance.
| Product | Coverage | Best For |
|---|---|---|
| Scotts GrubEx1 Season Long Grub Killer, 5,000 sq. ft. | Up to 4 months protection | Medium lawns seeking season-long grub suppression |
| Ortho BugClear Lawn Insect Killer Granules, 16,500 sq. ft. | Up to 6 months control of ants and 3 months for listed pests | Lawn owners needing broad-spectrum insect coverage |
| Scotts GrubEx1 Grub Killer for Lawns, 10,000 sq. ft. | Up to 4 months protection | Smaller to mid-size lawns with multiple insect targets |
| BioAdvanced Season-Long Grub Control Plus Turf Revitalizer, 12 lb | All-season grub control with turf revitalization | Lawn spaces needing root strengthening alongside grub control |
| Ortho BugClear Lawn Insect Killer, 33,000 sq. ft., 20 lb | Up to 6 months protection; 3 months residual | Large lawns seeking extensive coverage |
Note: The products listed here are intended for outdoor lawns and use against grubs and other listed pests. Always follow label directions for timing, application methods, and safety precautions. This guide focuses on grub control effectiveness, coverage, and suitability for different lawn sizes.
Scotts GrubEx1 Season Long Grub Killer
Best for: Medium lawns seeking a reliable, season-long grub solution. This product targets grubs when they are young and provides up to four months of protection after a single application. It also covers caterpillars (armyworm), chinchbugs, May/June beetles, and more as listed, with potential benefits against Japanese beetle infestations when used annually. Caution: applies as a lawn treatment—read instructions for safe use around pets and during specific temperature ranges.
Ortho BugClear Lawn Insect Killer Granules (16,500 sq. ft.)
Best for: Homeowners needing long-lasting protection against multiple lawn pests, including grubs, ants, and spiders. It provides up to six months of ant control (with some exclusions) and about three months of residual protection for other pests. This option is fast-acting, with visible protection emerging within minutes after application and watering in. Choose this if you want broad insect suppression across a large lawn; avoid if you avoid ant control or are applying in extremely hot conditions where product activation timing matters.
Scotts GrubEx1 Grub Killer for Lawns
Best for: Lawns that want a season-long grub solution with added protection against listed insects. One application can kill grubs when young and keep them at bay for about four months. It also helps suppress chinchbugs and supports annual control of Japanese beetle infestations. Limitation: like other granule products, effectiveness depends on proper spreading and thorough watering-in after application to activate the product.
BioAdvanced Season-Long Grub Control Plus Turf Revitalizer
Best for: Lawns needing a two-in-one approach—grub control plus turf revitalization. The formula claims to kill grubs while promoting stronger roots and thicker turf. It covers up to 5,000 square feet and provides season-long protection. Choose this if your lawn shows signs of root stress or thinning, but be aware that results depend on timely application and uniform coverage across the treated area.
Ortho BugClear Lawn Insect Killer (33,000 sq. ft., 20 lb)
Best for: Large lawns requiring substantial, long-lasting protection against a broad pest spectrum, including grubs. It provides up to six months of ant control and three months of residual protection for other listed pests, with coverage up to 33,000 square feet. Consider this when you want fewer refill applications across a big yard; limitation: larger weight and spreader needs may be required for even distribution.
Buying Guide: Key Considerations For Killing Grubs In Grass
What kind of grub problem do you have?
Identify the grub species common to your region. Some products target general grub populations, while others also address related pests like chinchbugs, armyworms, or Japanese beetles. If you see a variety of lawn pests, a broad-spectrum product may be more efficient.
What lawn size do you need to cover?
Match the product’s coverage to your lawn square footage. Larger lawns benefit from higher-capacity bags with bigger coverage, while smaller yards may prefer single-season or 5,000 sq. ft. offerings.
Season-long vs. short-term control—what’s your goal?
Season-long formulas offer extended protection after a single application, reducing maintenance. Shorter cycles may be suitable for lawns with new sod or if pest pressure fluctuates with weather patterns.
Is there a need for multi-pest protection?
Some products provide broad insect control beyond grubs, including ants, spiders, and armyworms. If your yard struggles with multiple pests, a multi-pest product can simplify treatment, though it may require careful timing to avoid overuse.
Application method and timing
Granular products usually require a spreader and watering-in after application. Read label instructions on when to apply (season, temperature, and wind conditions) and how to water to activate ingredients effectively.
Safety and environmental impact
Consider pets, children, and pollinators when selecting a product. Follow all safety guidelines, keep treated areas off-limits as directed, and store products safely away from food crops and water sources.
How to compare products quickly
- Look at coverage areas and the size of your lawn to choose the right bag or container.
- Check the duration of protection (months) to align with your maintenance schedule.
- Note any additional pest targets beyond grubs to maximize value.
- Consider whether you prefer one-season, season-long, or turf revitalizer features.
Practical tips for best results
- Spread evenly using a compatible spreader; avoid gaps and overlaps.
- Water the treated lawn after application as directed on the label.
- Avoid applying during extreme heat or drought when possible.
- Re-treat only as recommended by the product label and based on grub pressure indicators.
Frequently Asked Questions
- What is the best time to apply grub control? Apply when grubs are young and actively feeding, typically in late spring to early summer, following product label guidance.
- Can I use grub killer if I have pets? Yes, but follow label safety instructions, keep pets off treated areas until safe re-entry is specified, and rinse hands after handling.
- Do grub killers also prevent other lawn pests? Some products offer broader protection against listed insects; check the label for specifics and limitations.
- Will grubs return after treatment? Season-long or multi-month protections reduce recurrence, but repeated pressure from pests can require follow-up applications per label instructions.
- What coverage is needed for a large lawn? Choose a product with a high coverage area (33,000 sq. ft. or more) to minimize reapplication frequency.
- Should I water after applying? Most granular grub products require watering to activate the treatment. Follow the product label’s timing guidelines.