In Vitro Evaluation of Some Biopesticides Based on Plant Extracts and Trichoderma Spp Effects on Lasiodiplodia Theobromae Causing Mango Stem-End Rot Disease in Côte D'Ivoire

EasyChair Preprint 9715

Abstract

Plant pathogens are mainly controlled using synthetic products, which harm human and environmental health. In the current study, we aimed to assess the efficacy of some plant extracts and biocontrol agents inhibiting Lasiodiplodia theobromae development. We studied the inhibitory effect of 3 biopesticides based on essential oils (ASTOUN 50 EC, FERKA 50 EC, and NECO 50 EC), Moringa oleifera extracts (Methanolic and aqueous), and 4 isolates of Trichoderma spp on mycelial growth of L. theobromae. Results showed that biopesticides ASTOUN and NECO at 700 and 1000 ppm completely inhibited the mycelial growth of L. theobromae. Similarly, M. oleifera methanolic extract has the highest inhibitory rate (65.45 %) compared to aqueous extract (42.44%). Through dual assay, we found that Trichoderma spp isolates reduced L. theobromae development from 30 to 40 %. Therefore, this study shows how possible it is to use plant extracts and Trichoderma species to control mango Stem-end rot (SER). However, further studies should be undertaken in vivo to further confirmed.

Keyphrases: Biocontrol, Lasiodiplodia sp, Mango, dieback, environnement, stem-end rot

@booklet{EasyChair:9715,
  author    = {Yéfoungnigui Souleymane Yeo and Dio Dramane Dembele and Yassougui Kone and Soualo Outtara and Brahima Camara and Jean-Yves Rey and Diana Fernandez and Daouda Kone},
  title     = {In Vitro Evaluation of Some Biopesticides Based on Plant Extracts and Trichoderma Spp Effects on Lasiodiplodia Theobromae Causing Mango Stem-End Rot Disease in Côte D'Ivoire},
  howpublished = {EasyChair Preprint 9715},
  year      = {EasyChair, 2023}}