Grubs are the second stage, or larvae, of a beetle. They survive in this naked, white, "C"-shaped stage by eating the roots of grass plants. As the grass declines or dies, then large areas of what was your sod are dead and easily removed with a grass rake. The grubs then form a changing (pupa) stage like the cocoon of a moth or the chrysalis of a butterfly and then emerge to fly to your roses and many other plants where they now devour the leaf surfaces or petals while they are mating. The female then lays eggs that produce up to 235 new little grass eaters that dine briefly, and then go deep into the soil to survive winter.
Often the only way to know you have a grub problem is after itís too late and damage has already been done.
Thatís why it is important to look for early signs of grub infestation including the following:
- Grass is brown in patches, especially during hot or dry weather
- Turf feels soft or spongy when you walk on it
- Chunks of grass can easily be pulled up by hand
- Small sections of grass can easily be rolled back
- Raccoons, possums, skunks or moles are frequently digging into your lawn
Damage to grub infested lawns