Have you been noticing persistent brown areas in your lawn? Perhaps you thought they were dry areas in need of water. If watering doesn't make the areas greener, then you could have an infestation of white grubs which are the larvae of beetles.
The test for white grubs or lawn grubs is simple. Grab some grass in your hand and pull up. If the grass is infested, then a patch of grass and its sod will easily pull right out of the ground. If you turn the sod upside down, you will see the grubs on the underside curled into C shapes. The reason the grass and its sod pulls out so easily is because most of the roots have been eaten away by grubs. If you don't want to get on your knees to test for them, shovel three sides and lift up the patch of grass.
White grubs thrive in sun exposed grass that's growing in moist soil with lots of organic matter. If you've been keeping your grass well watered during dry weather, then it will act like a grub magnet since your lawn is the only suitable place for them to live.
White grubs are the larvae of these beetles:
- Japanese Beetle
- Green June Beetle
- Masked Schafer Beetle
- June Beetle
- Black Turfgrass Ataenius Beetle
Other Lawn Problems Caused By White Grubs
White grubs are a tasty treat for mammals such as raccoons, skunks, and possums. If your lawn looks torn apart, it's possible that one of these animals were feeding on the grubs during the night. White grubs can also bring in another lawn pest: moles. Moles like to tunnel in the soil underneath your lawn in search of food which includes white grubs. It only takes one or two moles to cause a lot of lawn damage. They create mole mounds which make lawn mowing difficult and destabilize the lawn which can cause sprained or broken ankles. Their tunneling may also introduce other pests into your lawn.
To eliminate your white grub problem before too much damage is done and to prevent future infestation, contact a lawn pest professional today.