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🪲PEST ALERT: Japanese Beetle | What You Need to Know

Submitted by Editor on Mon, 07/25/2022 - 17:57
Region
MGABC

The best defining characteristic of this beetle is the six tufts of white hairs running down either sides of the abdomen– no other beetle in BC has this pattern. 

JB
Japanese Beetles have 12 white tufts of hair 


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FACT SHEET JAPANESE BEETLE LOOK ALIKES

ID: Adult beetles are around 1 cm long, with a rounded oval shape and a hard shiny green exoskeleton and brown wing covers. The best defining characteristic of this beetle is the six tufts of white hairs running down either sides of the abdomen– no other beetle in BC has this pattern.

How do I know if it is a Japanese Beetle or European Chafer grub?Japanese Beetles (Popillia japonica) have distinct visual markings the larvae can be difficult to distinguish from the European Chafer. Click on the link to see the key difference between the two as well as learn a little bit more about this life stage of the beetle.

Grubs
Chafer grub vs Japanese Beetle grub

Japanese Beetle Larvae:

  • 1” long at maturity
  • off-white colour 
  • C-shaped body

Japanese Beetle Adult:

  • 3/8” long 
  • oval-shaped body
  • bronzed outer wings
  • 6 tufts of white hair along each edge of the abdomen
Adult Beetle
Look for the 6 tufts of white hair on the abdomen to ID the Japanese Beetle

 

Japanese Beetle

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