International Chair in Mathematical Physics and Applications (ICMPA-UNESCO CHAIR), University of Abomey-Calavi, Cotonou, Benin Republic.
National Higher School of Mathematics Genius and Modelization, National University of Sciences, Technologies, Engineering and Mathematics, Abomey, Republic of Benin.
PLoS One. 2021 Dec 3;16(12):e0260976. doi: 10.1371/journal.pone.0260976. eCollection 2021.
The Banana Bunchy Top Disease (BBTD), caused by the Banana Bunchy Top Virus (BBTV) is the most important and devastating in many tropical countries. BBTD epidemiology has been little studied, mixed landscape smallholder systems. The relative risks associated with this disease vary between geographical areas and landscapes. This work analyzed the management and vegetation conditions in smallholder gardens to assess the factors linked to landscape-level BBTV transmission and management. Mapping was done in this study area which is in a BBTD-endemic region, involving farmers actively managing the disease, but with household-level decision making. A spatial scanning statistic was used to detect and identify spatial groups at the 5% significance threshold, and a Poisson regression model was used to explore propagation vectors and the effect of surrounding vegetation and crop diversity. Spatial groups with high relative risk were identified in three communities, Dangbo, Houéyogbé, and Adjarra. Significant associations emerged between the BBTD prevalence and some crop diversity, seed systems, and BBTD management linked factors. The identified factors form important candidate management options for the detailed assessment of landscape-scale BBTD management in smallholder communities.
香蕉束顶病（BBTD）由香蕉束顶病毒（BBTV）引起，在许多热带国家是最重要和最具破坏性的。香蕉束顶病的流行病学研究甚少，混合景观小农户系统。与这种疾病相关的相对风险在地理区域和景观之间有所不同。这项工作分析了小农户花园的管理和植被状况，以评估与景观水平 BBTV 传播和管理相关的因素。在这个研究区域进行了映射，该区域是 BBTD 流行地区，涉及积极管理疾病的农民，但由家庭层面的决策决定。使用空间扫描统计来检测和识别 5%显著阈值下的空间组，并使用泊松回归模型来探索传播向量以及周围植被和作物多样性的影响。在 Dangbo、Houéyogbé 和 Adjarra 三个社区中发现了相对风险较高的空间组。BBTD 流行率与一些作物多样性、种子系统和与 BBTD 管理相关的因素之间存在显著关联。所确定的因素为小农户社区中详细评估景观尺度 BBTD 管理提供了重要的管理选择。
