Prototyping a knowledge-based system to identify botanical extracts for plant health in Sub-Saharan Africa

Silvie Pierre, Martin Pierre, Huchard Marianne, Keip Priscilla, Gutierrez Alain, Sarter Samira. 2021. Prototyping a knowledge-based system to identify botanical extracts for plant health in Sub-Saharan Africa. Plants, 10 (5):896, 24 p.

Journal article ; Article de recherche ; Article de revue à facteur d'impact Revue en libre accès total
Published version - Anglais
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Abstract : Replacing synthetic pesticides and antimicrobials with plant-based extracts is a current alternative adopted by traditional and family farmers and many organic farming pioneers. A range of natural extracts are already being marketed for agricultural use, but many other plants are prepared and used empirically. A further range of plant species that could be effective in protecting different crops against pests and diseases in Africa could be culled from the large volume of knowledge available in the scientific literature. To meet this challenge, data on plant uses have been compiled in a knowledge base and a software prototype was developed to navigate this trove of information. The present paper introduces this so-called Knomana Knowledge-Based System, while providing outputs related to Spodoptera frugiperda and Tuta absoluta, two invasive insect species in Africa. In early October 2020, the knowledge base hosted data obtained from 342 documents. From these articles, 11,816 uses—experimental or applied by farmers—were identified in the plant health field. In total, 384 crop pest species are currently reported in the knowledge base, in addition to 1547 botanical species used for crop protection. Future prospects for applying this interdisciplinary output to applications under the One Health approach are presented.

Mots-clés Agrovoc : Protection des plantes, santé des plantes, Système basé sur la connaissance, Pesticide d'origine végétale, Insecticide d'origine végétale, Extrait d'origine végétale, Spodoptera frugiperda, Tuta absoluta, Helicoverpa armigera

Mots-clés géographiques Agrovoc : Afrique au sud du Sahara

Mots-clés libres : Knowledge-based system, Knowledge management, Biopesticides, Plant extracts, Plant-based product, Essential oils, Crop protection, IPM, Natural substances, Pests, Diseases, Plant health, Animal heath, Aquaculture, Knomana

Classification Agris : H01 - Protection of plants - General aspects
H02 - Pesticides
H10 - Pests of plants

Champ stratégique Cirad : CTS 4 (2019-) - Santé des plantes, des animaux et des écosystèmes

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Source : Cirad-Agritrop (

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