Bruchus pisorum

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Bruchus pisorum (click on image to enlarge it)
Author(s): Natasha Wright, Florida Department of Agriculture and Consumer Services
Source: IPM Images

Bruchus pisorum (Linnaeus, 1758) - (pea beetle)

This beetle is a serious pest of peas and is widely distributed in temperate and subtropical regions. During spring, the adults feed on pollen and nectar of pea flowers. Later, females deposit their eggs on the young shoots and the emerging larvae bore into the developing pea seeds. Infested peas have a low commercial value and are unfit for human consumption. They will also no longer germinate.

The larvae start pupation after about 4-6 weeks. The adults are around 5 mm long and dark brown, mottled with darker and lighter spots. There is only one generation per year, with the adults overwintering in protected sites.

Synonyms:
Laria pisorum

Vernacular names
• Deutsch: Erbsenkäfer
• English: pea beetle
pea bug
• Español: gorgojo del guisante
• Français: charançon des pois
bruche des pois