There is no reason to learn about grub worms, that is, except when they are causing havoc with your lawn.

What is a grub worm? Where do grubs come from? A grub is actually not a worm at all, even though white grubs resemble little white worms. White grubs are actually the larval stage of beetles in the Scarabaeidae family, which includes the Japanese beetle, European chafer and June beetle.

Is there a predictable grub cycle? Adult beetles typically lay their eggs in June or July and, by August, those eggs hatch into larvae. The aftermath of their arrival is most felt in fall and spring. Grubs love to burrow all winter long.

What do grub worms look like? No matter the exact species, all white grubs are milky white in color with C-shaped bodies. They boast brownish heads and six spiny legs. They are small initially but can grow to 1 and 2 inches in length at maturity.

Why is a grub an enemy of sod or grass in general? Unlike earthworms that naturally aerate the soil, white grubs can quickly turn a healthy lawn into a patchy mix of dead and dying grass. The results of their devastation often resemble those created by severe drought.

What do grub worms eat? Grub worms love chomping on the roots of a previously healthy lawn. Even worse, those grubs attract moles, which then dig into a lawn looking for a grub buffet. The result: a lawn in deep trouble. Better still, grubs feed on the roots of trees in the spring and fall. Ugh!

Where do grubs live? Grubs love the roots of the grass!

Do grubs like lawns that are constantly irrigated? Lawns that are consistently watered can handle infestation better than drought-afflicted lawns. 

Can grub worms ignored in hopes the problem can go away? No. It is best to treat your soil in advance of laying sod. Grub infestation needs to be dealt with immediately when recognized.