Extension > Garden > Diagnose a problem > What's wrong with my plant? > Turf > Irregular patches > Turf grass easily rolls back when pulled
Turf > Irregular patches > Turf grass easily rolls back when pulled
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White Grub
- Typically first noticed mid to late summer.
- Roots mostly missing.
- 1/2 to 1 inch white grub may or may not be present.
- Identify a grub problem by examining a square foot sample of lawn along the border where dead or damaged grass meets healthy grass.
- When there are many grubs, the grass blades pull away from the roots and the turf rolls back like a carpet.
Management
- An expert can determine the species of white grub.
- It is easier to identify the species of the adult beetles.
- Skunks and moles eat grubs but grub control does not correct damage to lawns by skunks and moles.
- Control adult beetles if they are damaging ornamental plants.
- Do not treat for grubs in the fall because grubs move down into the soil for the winter.
- More information on white grubs