Fill the bucket or watering can with about a gallon of water.
Add a few tablespoons of dish soap to the water. The exact amount isn’t crucial, but around 2-4 tablespoons should suffice.
Apply to the Affected Area:
Identify the areas of your lawn where you suspect grubs are present. These are usually the spots where the grass is thinning, yellowing, or dying.
Pour the soapy water mixture evenly over these areas. If you have a large area to cover, consider using a hose-end sprayer attachment for your garden hose.
Wait and Watch:
After you’ve applied the solution, simply wait a few minutes. The dish soap irritates the grubs, forcing them to come to the surface of the soil.
Dispose of the Grubs:
As the grubs surface, you can easily pick them up and dispose of them. Birds love to feast on grubs, so if you leave them out for a little while, nature might even take care of the cleanup for you.
How It Works: The Science Behind the Trick
Dish soap works wonders on grubs because it reduces the surface tension of the water, allowing it to penetrate the soil more effectively. When the soapy water comes into contact with the grubs, it irritates their skin, which forces them to come to the surface to escape the discomfort. Additionally, the soap can clog their spiracles (small openings that insects use to breathe), further discouraging them from staying buried in your lawn.
This method doesn’t kill the grubs outright, but it does make them easier to remove manually. For a more permanent solution, you might need to repeat the process a few times or combine it with other grub control methods, like nematodes or milky spore treatments.
Benefits of This Method
Eco-Friendly: Unlike chemical pesticides, dish soap is generally safe for the environment, your pets, and your family.
Cost-Effective: You don’t need to spend money on expensive pest control products. A little dish soap and water are all it takes.
Quick and Easy: The entire process takes just a few minutes and requires minimal effort.
Immediate Results: You can see the grubs surfacing within minutes, making it an instantly gratifying solution.
Additional Tips for Grub Prevention
While this trick is highly effective for dealing with grubs that are already present, prevention is always better than cure. Here are some tips to keep your lawn grub-free:
Healthy Lawn Maintenance: Keep your lawn healthy by watering deeply and infrequently, mowing at the correct height, and aerating the soil to encourage strong root growth.
Nematodes: Consider applying beneficial nematodes, which are microscopic worms that naturally target and kill grubs without harming your lawn.
Milky Spore: This naturally occurring bacterium can be applied to your lawn to specifically target Japanese beetle grubs. Once established, it can provide long-term control.

Grubs can be a real headache for homeowners, but with this simple trick my dad taught me, you can tackle the problem in just 2 minutes with zero effort. The next time you notice your lawn showing signs of grub damage, grab some dish soap, mix it with water, and watch as these pests come to the surface. With a little consistency and some preventative measures, you can keep your lawn looking lush and green all season long.