How to Get Rid of Japanese Beetle Grubs
Japanese beetles lay eggs in your lawn in June or July. After the eggs hatch, the larvae (white grubs) burrow downs into the soil just below the surface and feeds on the grass roots. As temperatures drop in fall, the grubs move deeper in the soil. In June or July, the grubs emerge as Japanese beetles that will lay another batch of eggs in your grass if the lawn is unhealthy and grubs are not controlled. Does this Spark an idea?
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Instructions
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Confirm that you have white grubs. In the area where you have damaged grass or dead grass, turn over 1 inch of soil, if you see a white, thick worm looking thing, that is a white grub that has been feeding on your grass roots and is getting ready to emerge in beetle form. Do this test in May.
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Purchase milky spore to treat the lawn. Although you may only have grubs in the front yard or in one area of the lawn, treat the entire lawn with the milky spore to prevent any escapees that may be migrating to new areas of the lawn. Milky spore is a disease that actually kills the grub but is not harmful to humans, pets and wildlife.
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Sprinkle 1 tsp. of milky spore powder on the grass every 4 feet until the entire lawn is treated. It is best to make rows and do the first row first, then move over 4 feet and do the next row, while dropping 1 tsp. every 4 feet in the row as well. Milky spore can be applied anytime of the year, except during winter when the ground is frozen.
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Water the lawn lightly so that the spores soak into the ground.
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Tips & Warnings
Grubs eat the milky spore disease. As the grubs die and decay, they release more spores that spread through the soil, keeping the lawn protected from grubs for as long as 10 to 15 years.
