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Effect of sugar beet variety resistance on the disease epidemiology of Cercospora beticola
Pest Management Science ( IF 3.8 ) Pub Date : 2025-01-23 , DOI: 10.1002/ps.8666
Yixuan Yang, Mark Varrelmann, Sebastian Liebe
Pest Management Science ( IF 3.8 ) Pub Date : 2025-01-23 , DOI: 10.1002/ps.8666
Yixuan Yang, Mark Varrelmann, Sebastian Liebe
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BACKGROUNDCercospora leaf spot (CLS), caused by Cercospora beticola , is the most destructive foliar disease in sugar beet. CLS is conventionally controlled with fungicide, but the emergence of fungicide‐resistant populations reinforces the importance of developing and cultivating resistant varieties. Understanding the dynamics of CLS in different varieties is hence essential for sustainable CLS management.RESULTSField experiments (2022 and 2023) with four sugar beet varieties possessing different resistant properties were conducted to describe the relationship between the variety resistance and the disease epidemiology of C. beticola . For this purpose, spore flight and disease progression were assessed on a weekly basis. Disease severity (DS) and disease incidence (DI) were delayed in resistant varieties compared to the susceptible and moderately susceptible ones. This finding was further confirmed by a model‐based analysis of DS and DI for all varieties. Weekly spore flight monitoring during the vegetation period showed a similar tendency of reduced spore quantity by the resistant varieties. This was probably due to the lower DS, as no differences were found when the amount of fungal DNA was determined in individual lesions from the different varieties. Analysis of relative yield loss further confirmed the advantage of growing resistant varieties.CONCLUSIONOur results highlight that resistant varieties delay disease onset resulting in less severe symptoms and reduced spore flight. We also proved that aerial spore flight intensity could reflect the resistant property of each variety. These results provide a deeper insight into the interaction between variety resistance and CLS epidemiology, emphasizing variety‐specific CLS management. © 2025 The Author(s). Pest Management Science published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
中文翻译:
甜菜品种抗性对贝氏尾孢菌病流行病学的影响
背景由贝蒂科拉尾孢菌引起的毛孢叶斑病 (CLS) 是甜菜中最具破坏性的叶面病害。CLS 通常使用杀菌剂进行控制,但杀菌剂抗性种群的出现加强了开发和培育抗性品种的重要性。因此,了解不同品种的 CLS 动态对于可持续的 CLS 管理至关重要。结果对具有不同抗性特性的 4 个甜菜品种进行了 2022 年和 2023 年的现场实验,以描述品种抗性与 C. beticola 疾病流行病学之间的关系。为此,每周评估孢子飞行和疾病进展。与易感和中度敏感品种相比,抗性品种的疾病严重程度 (DS) 和疾病发病率 (DI) 延迟。对所有品种的 DS 和 DI 进行基于模型的分析进一步证实了这一发现。植被期间每周的孢子飞行监测显示,抗性品种的孢子数量减少的趋势相似。这可能是由于 DS 较低,因为在确定不同品种的单个病灶中的真菌 DNA 量时没有发现差异。相对产量损失的分析进一步证实了种植抗性品种的优势。结论我们的结果强调,抗性品种延缓了疾病发作,导致症状不那么严重,孢子飞行减少。我们还证明,空气孢子飞行强度可以反映每个品种的抗性。这些结果为品种耐药性与 CLS 流行病学之间的相互作用提供了更深入的见解,强调了品种特异性 CLS 管理。© 2025 作者。 由John Wiley & Sons Ltd代表化学工业协会出版的《害虫管理科学》。
更新日期:2025-01-23
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
甜菜品种抗性对贝氏尾孢菌病流行病学的影响
背景由贝蒂科拉尾孢菌引起的毛孢叶斑病 (CLS) 是甜菜中最具破坏性的叶面病害。CLS 通常使用杀菌剂进行控制,但杀菌剂抗性种群的出现加强了开发和培育抗性品种的重要性。因此,了解不同品种的 CLS 动态对于可持续的 CLS 管理至关重要。结果对具有不同抗性特性的 4 个甜菜品种进行了 2022 年和 2023 年的现场实验,以描述品种抗性与 C. beticola 疾病流行病学之间的关系。为此,每周评估孢子飞行和疾病进展。与易感和中度敏感品种相比,抗性品种的疾病严重程度 (DS) 和疾病发病率 (DI) 延迟。对所有品种的 DS 和 DI 进行基于模型的分析进一步证实了这一发现。植被期间每周的孢子飞行监测显示,抗性品种的孢子数量减少的趋势相似。这可能是由于 DS 较低,因为在确定不同品种的单个病灶中的真菌 DNA 量时没有发现差异。相对产量损失的分析进一步证实了种植抗性品种的优势。结论我们的结果强调,抗性品种延缓了疾病发作,导致症状不那么严重,孢子飞行减少。我们还证明,空气孢子飞行强度可以反映每个品种的抗性。这些结果为品种耐药性与 CLS 流行病学之间的相互作用提供了更深入的见解,强调了品种特异性 CLS 管理。© 2025 作者。 由John Wiley & Sons Ltd代表化学工业协会出版的《害虫管理科学》。