DNemFIG 2: Heterorhabditis nematodes infect grub larvae.

A. Two healthy, living grub larvae (upper) shown next to a grub larva killed by Heterorhabditis bacteriophora (lower). (Image source: W. Cranshaw, Colorado State University, bugwood.org. Obtained from forestryimages.org.)
B. Grub larva killed by H. bacteriophora, showing nematodes released from the larval body. (Image source: P. Greb, USDA Agricultural Research Service, bugwood.org. Obtained from forestryimages.org.)

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