Varietal influence of cowpea (Vigna unguiculata (L.) Walpers) on the pulse beetle (Callosobruchus Maculatus (F.) infestation at storage in Northern Region of Ghana

Abstract

Callosobruchus maculatus (F.), a cosmopolitan and most destructive pest of stored pulse grains, causes severe post-harvest and economic losses to farmers and traders. The results showed that Padi-tuya, Apagbaala, Marfo-tuya and the local check are susceptible to C. maculatus, recording the highest egg load progeny emergence and highest seed weight loss, as well as shortest developmental period. Songotra was the least preferred, followed by Zaayura and Bawutawuta. Results from susceptibility indices further indicated that Songotra and Zaayura were the least susceptible to C. maculatus, while Padi-tuya and Apagbaala were the most susceptible. Songotra and Zaayura should therefore be promoted to help control the pest during storage.