Benefit Cost Analysis of innovation packages to reduce the use of synthetic pesticides: the cases of combined insect-proof nets with Neem and Carapa oil for tomato protection

Oula Pabo Quevin, Martin Thibaud, Fondio Lassina, Coulibaly Noupe, Koné Daouda, Djézou Wadjamse Beaudelaire, Parrot Laurent. 2022. Benefit Cost Analysis of innovation packages to reduce the use of synthetic pesticides: the cases of combined insect-proof nets with Neem and Carapa oil for tomato protection. In : Proceedings of International Symposium on Agroecology and System Approach for Sustainable and Resilient Horticultural Production. Dussi M.C. (ed.), Simon S. (ed.). ISHS. Louvain : ISHS, 79-84. (Acta Horticulturae, 1356) ISBN 978-94-62613-54-6 International Horticultural Congress (IHC 2022): International Symposium on Agroecology and System Approach for Sustainable and Resilient Horticultural Production. 31, Angers, France, 14 Août 2022/20 Août 2022.

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Résumé : The agricultural sector in Côte d'Ivoire faces the continuous rise of urban and periurban agriculture and the excessive use of synthetic pesticides. This study estimates the effects of combined insect-proof nets with Neem and Carapa oil on the yield and the profitability of tomato cropping systems. An experimental trial was composed of three types of pest management strategies : an untreated control, a treatment with Neen and Carapa oil, and two treatments which combined plants extracts and insects-proof nets. The double difference and cost-benefit analysis methods were used for the economic assessment. Our results revealed a significant difference in average yields between cropping systems. The yield with combined insect-proof nets with Neem and Carapa oil is almost 3 times greater than the control (16.1 t.ha-1 vs 6.6 t.ha-1) in the dry season. There is no significant difference during the rainy season. The Benefit:Cost ratio is 1.90:1 for Neem and Carapa oil only and 2.98:1 for Neem and Carapa oil with insect-proof nets. The cost of the insect-proof nets cause the difference in the Benefit:Cost ratio. The sensitivity analysis reveals that the tomato cropping systems, remain profitable even when farm-gate prices and production decrease by 20% and 30% respectively, and production costs increase by 30%. Iron frames and insect-proof nets are not yet considered as agricultural investments. A tax policy considering iron frames and insect-proof nets as agriculture investments, would lower the tax rate from 20% to 5%, and therefore improve the Benefit:Cost ratio. A supply chain policy aiming at producing insect-proof net locally, would generate economies of scale and therefore lower the unit price of insect-proof nets. Other policies could consist in technology support and training. There is a need to perform a sustainability assessment of the Neem and Carapa oil supply chains.

Mots-clés libres : Benefit:Cost Analysis, Biobased products, Insect-proof nets, Innovation package, Côte d’Ivoire

Agences de financement hors UE : Institut de Recherche pour le Développement, Centre National de Recherche Agronomique, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Agence Française de Développement

Auteurs et affiliations

• Oula Pabo Quevin, CIRAD-PERSYST-UPR HortSys (FRA)
• Martin Thibaud, CIRAD-PERSYST-UPR HortSys (FRA) ORCID: 0000-0002-4915-4436
• Fondio Lassina, CNRA (CIV)
• Coulibaly Noupe, CNRA (CIV)
• Koné Daouda, UFHB (CIV)
• Djézou Wadjamse Beaudelaire, UAO (CIV)
• Parrot Laurent, CIRAD-PERSYST-UPR HortSys (MTQ) ORCID: 0000-0001-5712-9305

Source : Cirad-Agritrop (https://agritrop.cirad.fr/602410/)

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