Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin

Abstract Background Cassava is an important crop in Africa that is widely cultivated for its starchy tuberous root, which constitutes a major source of dietary carbohydrates. Cassava mosaic disease (CMD) is the most devastating disease affecting cassava in Africa and causes enormous losses in yield....

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Main Authors: Jerome Anani Houngue, Justin S. Pita, Gilles Habib Todjro Cacaï, Martine Zandjanakou-Tachin, Emmanuel A. E. Abidjo, Corneille Ahanhanzo
Format: Article
Language:English
Published: BMC 2018-04-01
Series:Journal of Ethnobiology and Ethnomedicine
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13002-018-0228-5
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author Jerome Anani Houngue
Justin S. Pita
Gilles Habib Todjro Cacaï
Martine Zandjanakou-Tachin
Emmanuel A. E. Abidjo
Corneille Ahanhanzo
author_facet Jerome Anani Houngue
Justin S. Pita
Gilles Habib Todjro Cacaï
Martine Zandjanakou-Tachin
Emmanuel A. E. Abidjo
Corneille Ahanhanzo
author_sort Jerome Anani Houngue
collection DOAJ
description Abstract Background Cassava is an important crop in Africa that is widely cultivated for its starchy tuberous root, which constitutes a major source of dietary carbohydrates. Cassava mosaic disease (CMD) is the most devastating disease affecting cassava in Africa and causes enormous losses in yield. In Benin, specifically, cultivars resistant to CMD are not commonly planted, and even when CMD is observed in fields, farmers do not implement control measures, presumably because they lack proper knowledge and training. Our study aimed to evaluate farmers’ knowledge of CMD to determine whether there is consistency between farmers’ criteria for selecting cassava cultivars and the currently CMD-recommended cassava varieties. Methods We conducted structured interviews with 369 farmers in 20% of townships in each of three agro-ecological zones in Benin between November 2015 and February 2016. Farmers were selected randomly in each household, and their fields were assessed for CMD incidence and severity. Results All farmers surveyed, representing a broad demographic pool with regard to education level, age group, and years of experience in cassava production, successfully recognized CMD symptoms in photos, but most (98.60%) said they did not know the causes and vectors of the disease. Most farmers (93.51%) reported that they obtain planting material from neighboring fields or their own fields. In total, 52 unique cultivars were identified, of which 3 (5.76%) were preferred based on their yield and precocity and 3 (5.76%) were preferred based on taste or ability for transformation. The assessment of disease incidence and severity showed that the areas most affected by CMD were Comè Township (37.77% of fields affected) and agro-ecological zone VIII (26.33%). Conclusion Farmers already know how to recognize the symptoms of CMD and could implement control measures against it if they are trained by researchers. Across all surveyed areas, we identified six preferred cultivars based on the four most commonly stated preference criteria (precocity, yield, gari, and taste. Our results suggest that farmers will be more likely to use CMD-resistant cultivars and clean plant material if the plants meet their existing preference criteria. We suggest that CMD-resistant cultivars will be embraced only if the recommended cultivars are strategically aligned with the characteristics desirable to the cassava farmers in each region.
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spelling doaj.art-7f4016e8f29948b1bb3770c0b0ca81b72022-12-21T17:48:07ZengBMCJournal of Ethnobiology and Ethnomedicine1746-42692018-04-011411910.1186/s13002-018-0228-5Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in BeninJerome Anani Houngue0Justin S. Pita1Gilles Habib Todjro Cacaï2Martine Zandjanakou-Tachin3Emmanuel A. E. Abidjo4Corneille Ahanhanzo5Central Laboratory of Plant Biotechnology and Plant Breeding, Department of Genetics and Biotechnology, Faculty of Science and Technique, University of Abomey – CalaviLaboratory of Plant Physiology, Université Felix Houphouët-BoignyCentral Laboratory of Plant Biotechnology and Plant Breeding, Department of Genetics and Biotechnology, Faculty of Science and Technique, University of Abomey – CalaviLaboratory of Molecular Plant Pathology, School of Horticulture and Green Space, National University of AgricultureCentral Laboratory of Plant Biotechnology and Plant Breeding, Department of Genetics and Biotechnology, Faculty of Science and Technique, University of Abomey – CalaviCentral Laboratory of Plant Biotechnology and Plant Breeding, Department of Genetics and Biotechnology, Faculty of Science and Technique, University of Abomey – CalaviAbstract Background Cassava is an important crop in Africa that is widely cultivated for its starchy tuberous root, which constitutes a major source of dietary carbohydrates. Cassava mosaic disease (CMD) is the most devastating disease affecting cassava in Africa and causes enormous losses in yield. In Benin, specifically, cultivars resistant to CMD are not commonly planted, and even when CMD is observed in fields, farmers do not implement control measures, presumably because they lack proper knowledge and training. Our study aimed to evaluate farmers’ knowledge of CMD to determine whether there is consistency between farmers’ criteria for selecting cassava cultivars and the currently CMD-recommended cassava varieties. Methods We conducted structured interviews with 369 farmers in 20% of townships in each of three agro-ecological zones in Benin between November 2015 and February 2016. Farmers were selected randomly in each household, and their fields were assessed for CMD incidence and severity. Results All farmers surveyed, representing a broad demographic pool with regard to education level, age group, and years of experience in cassava production, successfully recognized CMD symptoms in photos, but most (98.60%) said they did not know the causes and vectors of the disease. Most farmers (93.51%) reported that they obtain planting material from neighboring fields or their own fields. In total, 52 unique cultivars were identified, of which 3 (5.76%) were preferred based on their yield and precocity and 3 (5.76%) were preferred based on taste or ability for transformation. The assessment of disease incidence and severity showed that the areas most affected by CMD were Comè Township (37.77% of fields affected) and agro-ecological zone VIII (26.33%). Conclusion Farmers already know how to recognize the symptoms of CMD and could implement control measures against it if they are trained by researchers. Across all surveyed areas, we identified six preferred cultivars based on the four most commonly stated preference criteria (precocity, yield, gari, and taste. Our results suggest that farmers will be more likely to use CMD-resistant cultivars and clean plant material if the plants meet their existing preference criteria. We suggest that CMD-resistant cultivars will be embraced only if the recommended cultivars are strategically aligned with the characteristics desirable to the cassava farmers in each region.http://link.springer.com/article/10.1186/s13002-018-0228-5Farmer surveyPreferred cultivarsCassava mosaic diseaseDisease severityDisease symptomsStaple crop
spellingShingle Jerome Anani Houngue
Justin S. Pita
Gilles Habib Todjro Cacaï
Martine Zandjanakou-Tachin
Emmanuel A. E. Abidjo
Corneille Ahanhanzo
Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin
Journal of Ethnobiology and Ethnomedicine
Farmer survey
Preferred cultivars
Cassava mosaic disease
Disease severity
Disease symptoms
Staple crop
title Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin
title_full Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin
title_fullStr Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin
title_full_unstemmed Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin
title_short Survey of farmers’ knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro-ecological zones in Benin
title_sort survey of farmers knowledge of cassava mosaic disease and their preferences for cassava cultivars in three agro ecological zones in benin
topic Farmer survey
Preferred cultivars
Cassava mosaic disease
Disease severity
Disease symptoms
Staple crop
url http://link.springer.com/article/10.1186/s13002-018-0228-5
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