ADVANCED JOURNAL OF PLANT BIOLOGY
Integrity Research Journals
ISSN: 2992-4928
Model: Open Access/Peer Reviewed
DOI: 10.31248/AJPB
Start Year: 2019
Email: ajpb@integrityresjournals.org
Assessment of bio-control quality of ethanolic extracts of some tropical plants on fruit rot pathogens of pineapple fruits in Ado Ekiti
https://doi.org/10.31248/AJPB2025.046 | Article Number: CD39A2AA1 | Vol.6 (3) - October 2025
Received Date: 28 June 2025 | Accepted Date: 13 September 2025 | Published Date: 30 October 2025
Authors: J. Y Ijato* , O. Olajide and B. O Ojo
Keywords: Biocontrol, fungal, pathogens., ethanolic extracts, fruit rot, pineapple fruit, tropical plants.
Food security in developing nations is increasingly threatened by plant diseases, particularly post-harvest fruit rot, which significantly impacts the livelihoods of rural populations, subsistence farmers, and fruit vendors who rely heavily on fruit cultivation and trade. Beyond economic losses, fruit rot pathogens may also contribute to foodborne illnesses. This study evaluated the antifungal activity of ethanolic extracts from Khaya grandifoliola, Hyptis suaveolens, Zingiber officinale, Calophyllum inophyllum, and Datura stramonium against fungal pathogens responsible for pineapple fruit rot. Results from this study showed that these plant extracts had varying degrees of inhibitory effects on the mycelial growth of the fungi. Zingiber officinale extract demonstrated the highest inhibition (38.40%) against Aspergillus flavus at a concentration of 1.0 g/mL, while its lowest effect was observed against Aspergillus fumigatus (23.10%). Similarly, Datura stramonium was most effective against Aspergillus tubingensis (24.00%) and least effective against Colletotrichum fruticola (10.00%). Calophyllum inophyllum exhibited the greatest inhibition on Trichoderma harzianum (18.50%), and the lowest on Aspergillus flavus (15.00%). The extract from Hyptis suaveolens showed strong activity against Aspergillus fumigatus (35.00%) and lower efficacy on Aspergillus niger (20.00%). Khaya grandifoliola had the highest inhibitory effects on Aspergillus flavus (35.00%) and the lowest on Aspergillus fumigatus (22.00%). These findings suggest that the tested plant extracts can serve as alternatives to synthetic fungicides for managing fungal rot of pineapple fruits, as they are effective and environmentally friendly.
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