Lawn & Landscaping
Lawn & LandscapingUpdated 10/1/2026

How to Eradicate and Prevent Lawn Grubs

Spongy, dying patches that lift like carpet often mean grubs feeding on grass roots. Diagnosing early and treating correctly saves the lawn.

Lawn & Landscaping
How-To Guides
Difficulty
Intermediate
Time
1–2 hours
Budget
$$
Safety
Low

Tools needed

  • Broadcast walk-behind lawn spreader
  • Garden gloves
  • Spade

Materials needed

  • Seasonal grub control granules
  • Heavy-duty garden hose

Step-by-step

  1. 1

    Confirm grubs by peeling back a dying patch and counting C-shaped larvae in the soil.

  2. 2

    If you find more than a handful per square foot, treat the whole lawn.

  3. 3

    Spread grub control granules evenly with a broadcast spreader at the label rate.

  4. 4

    Water the product in thoroughly so it reaches the root zone.

  5. 5

    Reseed or patch bare spots once the grubs are controlled.

Common mistakes

  • • Treating at the wrong time of year for your grub's life cycle
  • • Skipping the watering-in step, so the product never reaches the grubs

Maintenance & next steps

Apply preventively in early summer if grubs are a recurring problem in your yard.

When to call a professional

For severe, lawn-wide damage or repeat infestations that may need a professional program.

Editor's note: This is instructional content for How to Eradicate and Prevent Lawn Grubs. Replace with your own firsthand experience and photos before publishing.
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BioAdvanced 24-Hour Grub Killer Plus Granules
Consumable
BioAdvanced

BioAdvanced 24-Hour Grub Killer Plus Granules

Best for: Killing active lawn grubs fast

Granular • works in 24 hours

Earthway 2050P Walk-Behind Broadcast Lawn Spreader
Tool
Earthway

Earthway 2050P Walk-Behind Broadcast Lawn Spreader

Best for: Spreading grub control evenly

80 lb hopper • broadcast spreader