Coffee rust has been one of the main factors responsible for reducing crop yield. The management of this disease corresponds to one of the main costs in the production chain of C. canephora and often the practices adopted by farmers are not able to minimize production losses. Therefore, it is important to adopt methodologies that help the sustainable management of the disease in the field, reducing losses in yield and costs with pesticide applications. This study aimed to monitor coffee rust (Hemileia vastatrix Berk. & Br.) in a commercially grown crop with C. canephora Pierre ex Froehner, associating the effect of disease severity on different phenological phases of plants on the crop yield. Data collection of rust severity and plant yield was performed using an irregular sampling grid with 120 points, which was set up in the area for monthly samplings. Geostatistical analysis was used to determine and quantify the spatial variability of the disease severity. To describe the joint effect of the severity of rust from different periods on coffee yield, a principal component analysis was used. The disease influence on coffee yield was assessed using Spearman’s linear correlation analysis. The rust occurred in practically all the evaluated months, however the highest averages of severity were observed between the months of March and September. Furthermore, the temporal behavior of disease was very influenced by the weather conditions. The occurrence of rust showed spatial dependence and its occurrence in the phenological phases of flowering and fruit filling negatively influenced coffee yield.

咖啡锈病一直是导致作物产量下降的主要因素之一。该病害的管理对应于C. canephora生产链中的主要成本之一，农民采用的做法通常无法将生产损失降至最低。因此，重要的是采用有助于在田间可持续管理疾病的方法，减少农药应用的产量损失和成本。本研究旨在监视器咖啡锈病（Hemil EIA vastatrix伯克。＆amp）与商业种植的作物C.果咖啡Pierre ex Froehner，将疾病严重程度对植物不同物候阶段对作物产量的影响联系起来。锈病严重程度和植物产量的数据收集使用具有 120 个点的不规则采样网格进行，该网格设置在该区域进行每月采样。地统计分析用于确定和量化疾病严重程度的空间变异性。为了描述不同时期锈病的严重程度对咖啡产量的共同影响，使用了主成分分析。使用 Spearman 的线性相关分析评估疾病对咖啡产量的影响。锈蚀几乎发生在所有评估月份，但在 3 月和 9 月之间观察到的平均严重程度最高。此外，疾病的时间行为受天气条件的影响很大。锈病的发生具有空间依赖性，其发生在开花和果实灌浆的物候阶段对咖啡产量产生负面影响。