Seed-production-pest
Guides
Hypera nigrirostris
lesser clover leaf weevil, black-beaked green weevil
Hypera nigrirostris, commonly known as the lesser clover leaf weevil, is a small curculionid beetle native to Europe and northern Africa that has been introduced to North America and Japan. It is a specialized herbivore of leguminous plants, particularly red clover (Trifolium pratense), and has become a significant agricultural pest in red clover seed production systems where larval feeding can reduce yields by up to 50%.