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Grubs in your lawn?

a guide for lawn care professionals and homeowners

Know Your Grubs

White grubs are immature scarab beetles (for example, European chafers, Japanese beetles, and Oriental beetles). Although all grubs cause similar damage, the treatment you choose should correspond to the species. Homeowners can have their grubs identified at a local Cornell Cooperative Extension (CCE) office. Lawn care professionals should learn how to identify grubs and can consult with CCE staff for training. Knowing the species helps you pinpoint effective strategies that will work in your climate.

scarab beetle eggs
Eggs and newly hatched grubs. Photo by J. Ogrodnick, NYSAES Photo.
scarab beetle larva (white grub)
Grub larva, third stage (instar). Photo by J. Ogrodnick, NYSAES Photo.
scarab beetle pupa
Pupa (becoming an adult). Photo by J. Ogrodnick, NYSAES Photo.
adult japanese beetle
Adult Japanese beetle. Photo: USDA ARS Photo Unit, USDA Ag. Research Service, Bugwood.org
adult oriental beetle
Adult Oriental beetle. Photo: M. Reding & B. Anderson, USDA Agricultural Research Service, Bugwood.org
adult european chafer
Adult European chafer beetle. Photo by J. Ogrodnick, NYSAES Photo.