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Asparagus Beetles

Order: Coleoptera
Family: Chrysomelidae
Common asparagus beetle (Crioceris asparagi)
Spotted asparagus beetle (Crioceris duodecimpunctata)

Pests as larva and adults


  • 1/4-inch long
  • Common asparagus beetle: shiny metallic blue-black with yellow and red spots
  • Spotted asparagus beetle: reddish-orange with 6 spots per wing cover
  • Larvae: olive-gray, hump-backed sluggish grubs

Host plants

  • Asparagus


  • Chewing on growing tips and ferns
  • Brown-black excrement stains and feeding scars on spears
  • Brown bullet-shaped eggs on spears


  • Overwinter as adults
  • 2-3 generations per year

Control Measures


  • Hand pick and crush


  • Harvest spears ASAP
  • Destroy overwinter plant debris and traps


  • Parasitic wasp


Contact Us

Integrated Pest Management

Mailing Address:
University of Idaho Boise
322 E Front St, Suite 180
Boise, ID 83702

Phone: 208-364-4046