June Beetle

Pest: June Beelte (Coenonycha testacea, Serica fimbriata, Serica alternata)

Pest Type: Insect Pest

Major Identifying Features: Beetles are generally brown, 0.4-0.6 inches long, larvae are C-shaped, cream colored, soil-dwelling grubs

Life Cycle: June beetles have one generation per year and go through a complete metamorphosis

Pest Rating: Moderate

Management Rating: Moderate

Host/Season/Outbreak Information: Adults chew tree foliage at night, during the day adults hide under litter or soil

Damage Information: June beetles can completely defoliate a large number of young trees in a single grove

Management Options: cultural control with backlight traps at night during late winter and spring

Sources:

http://www.ipm.ucanr.edu

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