Diabrotica barberi

Definition

A species of skeletonizing leaf beetle (family Chrysomelidae) native to North America, commonly known as the northern corn rootworm. Adults feed primarily on corn (Zea mays); when corn is unavailable, they consume goldenrod pollen. The species is a significant agricultural pest, with larvae feeding on corn roots and adults damaging silks and foliage. Described by Smith & Lawrence in 1967.

Etymology

Example

Crop rotation strategies for Diabrotica barberi differ from those for its congener D. virgifera because the northern corn rootworm can enter extended diapause, remaining in the soil for multiple years before emerging.

Synonyms

• Northern corn rootworm

Related Terms

• Diabrotica virgifera
• Chrysomelidae
• rootworm
• skeletonizing beetle
• crop rotation
• Diapause

Usage Notes

Distinguished from the western corn rootworm (Diabrotica virgifera virgifera) and southern corn rootworm (Diabrotica undecimpunctata howardi) by geographic range and life-history traits, particularly the capacity for multiyear diapause. Often managed through cultural practices rather than insecticides due to resistance development.