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Lawn Grub Control

4 min read

If your lawn has a grub problem, eliminate it before too much damage is done and to prevent future infestation. Treatment with Jonathan Green Grub & Insect Control is an excellent solution.

Jonathan Green has specialized in beautiful lawns since 1881. Six generations of the family have worked to perfect our genetically superior grass seed and our family of lawn and soil care products. Our products will transform every aspect of your lawn to help it thrive like never before and, with our New American Lawn Care Plan, caring for your lawn will be easier than ever.

Lawn Grubs & the Damage They Cause

Lawn grubs, also known as white grubs, are white, C-shaped creatures that are about half an inch to two inches in length and have soft bodies with legs near their heads.

These worm-like creatures are the larvae of beetles, such as Japanese Beetles, June Beetles (June “bugs”), and Masked Schafer Beetles, that hatch within about two weeks of being laid. They live in the soil, feed on grass roots, and can cause extensive damage to your lawn practically overnight.

When finished root-munching for the season, the grubs will venture many inches deeper into the soil to hibernate until spring. As spring arrives and soil temperatures rise, they move back to the root systems to feed, emerging as adult beetles to mate and lay eggs that hatch into even more grubs. These baby grubs are in what is termed the pupae stage of growth.

Evidence of grub damage includes patches of dead or dying grass. Grubs will attack roots and destroy grass plants, causing large patches of spongy, brown turf. It is possible to roll back the grass mat easily because the roots that are anchoring it to the soil are gone.  When this occurs it is a sure sign that your lawn is infested with destructive grubs.

Grubs also often attract destructive animals, such as birds, skunks, raccoons, possums and moles, that come to feed on them, tearing apart your lawn in the process.

Lawn Grub Treatment

Grubs are completely normal and natural in most lawns. Minor infestations (5 or 6 grubs per square foot) usually do little harm, especially if you have a healthy lawn, but heavy infestations (10 or more grubs per square foot) will destroy the roots of the grass plants.

If your lawn is infested with grubs, it can be quickly destroyed and may not be able to recover on its own. Extensive reseeding may be required to fill in bare and weak patches in the lawn, and the grubs will continue reproducing for the next season until you stop them permanently.

Jonathan Green Natural Grub & Lawn Insect Control controls grubs and more than 25 other lawn-damaging pests, including surface-feeding insects such as chinch bugs and sod webworms.  The systemic insecticide contains Imidacloprid and Lambda-cyhalothrin technology and can be used on lawns, flower beds, and around ornamental shrub and trees.

Midsummer to early fall is the best time to treat lawn grubs because they are still small, immature and closer to the surface.

  • Apply from mid-July to early October
  • One application will kill the grubs for the rest of the season
  • Systemic control kills both surface and soil insects
  • Protects your lawn from top to bottom
  • Water the lawn immediately after application
  • You may seed with this product

If sections of your lawn look dead even though you water them regularly, you may have a grub problem. Early detection will help you control them before they cause too much damage. For more information about lawn grub control, visit us online at JonathanGreen.com or visit your nearest independent retail store for expert lawn care advice.

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