Groundnut-pest
Guides
Caryedon
pea and bean weevils, groundnut bruchids
Caryedon is a genus of seed beetles in the family Chrysomelidae, subfamily Bruchinae, containing approximately 11 described species. The genus includes significant agricultural pests, notably C. serratus (groundnut bruchid) and C. gonagra (also called groundnut bruchid), which infest stored legume seeds. Species in this genus are primarily associated with Fabaceae hosts and have been documented across the Old World tropics and subtropics.
Caryedon serratus
Groundnut Bruchid, Groundnut Borer
Caryedon serratus is a bruchid beetle in the family Chrysomelidae, commonly known as the groundnut bruchid or groundnut borer. It is a major pest of stored groundnuts (Arachis hypogaea) and also develops on seeds of wild legumes such as Piliostigma thonningii. The species has a broad pantropical and subtropical distribution spanning Africa, the Americas, Europe, and Oceania. Its life cycle is strongly influenced by temperature and humidity, with development rates varying significantly across environmental conditions.