Grubs are unattractive, tiny insect larvae that are mostly laid by Japanese beetles in the moist areas of the garden. The lawn grubs will burrow into the ground and consume the roots of your lawn and garden, killing the vegetation and leaving behind large patches of dead, brown grass. Grubs also attract several unwanted pests, including moles that will dig up your lawn in search of their next meal. Killing grubs in your lawn is possible with the use of household items, instead of potentially dangerous chemicals.
Add 1/4 cup insecticidal soap, such as neem oil, to a plastic spray bottle.
Pour 1/2 gallon water into the bottle. Replace the cap and shake the bottle vigorously to combine the ingredients.
Spray the mixture directly onto any grubs or Japanese beetles located in the lawn or garden. The soapy mixture will make it more difficult for the beetles to lay eggs and will also effectively kill the grubs without causing damage to the lawn or garden.
Pour 2 tbsp. liquid dish soap and 1/2 gallon water into a plastic bucket.
Dig into any patches of missing grass with a small shovel. The brown, dead areas are a sure sign that a grub infestation is there.
Pick up the grubs individually with your hands and place them into the soapy water. If you are squeamish about touching the grubs, wear a pair of garden gloves.
Continue to pick up the grubs until they are gone. Search for grubs when you are performing other lawn duties, such as tilling the soil or weeding your garden.