Clover-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%.
Porphyrosela minuta
A tiny leaf-mining moth in the family Gracillariidae, Porphyrosela minuta creates distinctive white blotch mines on clover leaves. Native to South America, it has established populations in North America following recent introduction. The species is multivoltine with rapid development, completing its life cycle in approximately 16 days at 25°C. Adults are minute and difficult to observe in the field.