Insect Hotline Issue 16

chaf

 

Masked chafer white grub (notice lack of pattern of the spines)

jb

Japanese beetle white grub (notice the v-shaped pattern to the spines)

orient

Oriental beetle white grub (notice the parallel lines of spines)

These are three common white grub species that may be found in turfgrass.

Insect Hotline Issue 18


Fungus gnats (maggots). Photo provided by: David Cappaert, Michigan State University, Bugwood.org

Japanese beetle white grub. Photo provided by: Mike Reding & Betsy Anderson, USDA Agricultural Research Service, Bugwood.org

Count the five prolegs (fleshy appendages) on the black swallowtail caterpillar. Photo provided by: Brian Kunkel, Ornamentals IPM Specialist, University of Delaware

Notice the eight prolegs (fleshy appendages) on the redheaded pine sawfly. Photo by: G. Keith Douce, University of Georgia, Bugwood.org.

Insect Hotline Issue 19


White grubs. Photo provided by: University of Georgia Entomology Archive, University of Georgia, Bugwood.org

White grubs. This image compares the size of three white grub species. Left to right: Japanese beetle, European Chafer, Junebug (Phyllophaga). Photo by: David Cappaert, Michigan State University, Bugwood.org

Insect Hotline Issue 23

Japanese Beetle Grubs
Photo by John A. Weidhass, Virginia Polytechnic Institute and State University, Bugwood.org
Asiatic Garden Beetle Grubs

Photo Credit John Obermeyer, Purdue Cooperative Extension Service

Phyllophaga species include May beetles, June beetles, and scarab beetles. These grubs have a multi-year life cycle.

Photo from Clemson University – USDA Cooperative Extension Slide Series, Bugwood.org

Third instar oriental beetle with Tiphia vernalis (parasite) egg on ventral side

Photo by Mike Reding & Betsy Anderson, USDA ARS, Bugwood.org

Green June Beetle Grub

Photo from Clemson University – USDA Cooperative Extension Slide Series, Bugwood.org

Northern Masked Chafer Grub

Photo by Mike Reding & Betsy Anderson, USDA ARS, Bugwood.org