January 2024

Orange peel powder and cypress ash affecting bean weevil (Acanthoscelides obtectus) and preserving seed viability

Common bean Phaseolus vulgaris is highly attacked during storage by Acanthoscelides obtectus which reduces seeds quantity, quality and germination rate. Due to the hazards of synthetic chemicals to humans and the environment, there is a need to promote the application of phytochemicals. Orange peel powder, cypress leaf ash and their mixture were assessed against A. obtectus and to determine their influence on seed...

Author(s): Katamssadan Haman Tofel, Divine Nsobinenyui, Linus Nkwain, Wini Jean Goudoungou, and Elias Nchiwan Nukenine  

February 2024

Diatomaceous earths: Alternative insecticides to Malathion in the Soudano-Guinean agro-ecological zone of Cameroon against stored maize weevil, Sitophilus zeamais Motschulsky (Coleoptera: Curculionidae)

Experiments were carried out in ambient laboratory conditions to evaluate the effect of Fossil-Shield and SilicoSec, and Malathion against Sitophilus zeamais on stored Cameroonian maize variety CMS8501. The DE products were applied at 0, 0.5, 1, 1.5 and 2 g/kg of maize grains and Malathion at 0.5 g/kg of maize. Adult mortality, F1 progeny emergence, population increase, grain damage, grain weight loss, and seed...

Author(s): Elias Nchiwan Nukenine, Gabriel Tagne Fotso, Simon Pierre Yinyang Danga, Katamssadan Haman Tofel, Jean Wini Goudoungou and Cornel Adler