Titre : [FORTHCOMING] Field evaluation of Trichoderma asperellum and Beauveria bassiana-based biopesticides for integrated management of pests and diseases in cocoa-based agroforestry systems in Cameroon 

Auteurs : Hermine C. MAHOT
, Jean G. NDJE MBILE
, Gwladys L. MABAH TENE
, Chantal MADOU
, Gael CHATUE CHATUE
, Gertrude MEMBANG
, Gaelle S. MANGUELE FATOU
, Precillia I. TATA NGOME,  

Revue : Technology and Innovation 

Numéro : Forthcoming papers 

Volume :  

Date : 2026/04/27 

DOI : TBA 

ISSN : 2399-8571 

Résumé : The efficacy of a combined biopesticide formulation based on Trichoderma asperellum (strain PR11) and Beauveria bassiana (strain BIITA 6.2.2) was evaluated in a farmer setting on three agroforestry cocoa plantations in Ntui, Central Region, Cameroon. A randomized complete block design was used, comprising 27 plots, with monthly data collection from 20 trees per plot to assess the incidence and severity of black pod rot, mirid insect damage, and cocoa tree productivity. The results showed no significant difference between the biological and chemical treatments regarding the incidence and severity of black pod rot and mirid insect damage. Damage severity remained low for all treatments. Productivity was higher in the plots treated with biopesticides (0.80 kg/cocoa tree). These results suggest that the combined application of Trichoderma asperellum and Beauveria bassiana is an alternative to chemical pesticides for the integrated management of pests in cocoa agroforestry systems. 

Éditeur : ISTE OpenScience