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Publications Scientifiques

[ Communication ] Management of yam parasitic nematodes using ‘’Wrap and Plant’’ technology in North-East Benin

Date de soumission: 09-02-2022
Année de Publication: 2021
Entité/Laboratoire Laboratoire de Biologie Végétale (LBV)
Document type : Communication
Discipline(s) : Entomologie & Gestion des ravageurs
Titre Management of yam parasitic nematodes using ‘’Wrap and Plant’’ technology in North-East Benin
Auteurs
Conference: 4ème Colloque Scientifique International de l’Université de Kara
Lieu Conference: Kara, Togo
Volume:
DOI:
Mots clés Abamectin, Benin, crop protection, Dioscorea spp., plant parsitic nematodes
Resume Plant-parasitic nematodes represent a key constraint that challenges yam production in West Africa due to their detrimental effects on tuber quality and yield in fields and during storage. However, most of the recommended control measures are difficult to apply and yet to be adopted by farmers. An innovative technology called “Wrap and Plant” consisting of wraping seed yam (cv. Danwari) with banana paper treated with abamectin at planting were assessed in farmers’ fields for their efficacy against plant-parasitic nematodes with focus on Scutellonema bradys. Trial was carried out in the North-Eastern Benin to assess the efficacy of Abamectin-treated banana paper in comparison to untreated banana paper and unwrapped seed yam (farmers’ practice) using randomized complete block design with four replicates. Scutellonema bradys densities were collected at planting and at harvest. In addition consumer testing was carried out on three local foods (boiled yam, pounded yam and amala) processed from tubers to evaluate the liking of their main quality characteristics using a 7- point hedonic scale (1 = Dislike, 7 = Like). Results showed reductions in S. bradys densities in tubers by up to 71% and yield increase by up to 14% in plots planted with seed yam wrapped with Abamectin-treated banana paper compared to farmer’s practice. Concerrning the comsumer testing, results varied with the food type. For boiled yam, only descriptor “Color” showed significant difference between Abamectin treatment and farmer’s pratice with scores of 4.9 and 6.3 over 7, respectively; while for pounded yam, these treatments were only significantly different for descriptor “Stickness” with scores of 5.7 and 6.4, respectively. For “Amala”, no significant difference was observed between treatments. This study provides evidence that the “Wrap and Plant Technology” using Abamectin-treated banana paper can be considered as promising method for yam protection against nematodes.
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