What Are Grubs? Grubs are a common nuisance in Texas lawns. There are actually 100 different types of scarab beetles in Texas that have a similar lifecycle and designated as white grubs, grub worms, June bugs, or May beetles. These bugs are harmless to pets and humans other than being a nuisance. The adult beetle does no direct damage to any plant, but its larval form can do significant damage to root systems of warm season turf grasses, vegetables, and ornamental plants. Plants damaged by grubs will have weak growth [...]