subsp. () is associated with olive quick decline syndrome (OQDS), a severe disease affecting the olive groves of Salento (Apulia, Italy). Through a series of interdisciplinary studies, an effective management strategy aimed at maintaining the traditional olive germplasm has been developed and evaluated. Specifically, a systemic biocomplex formulation containing zinc (4%), copper (2%) and citric acid, is sprayed on the tree canopy once per month from spring to early autumn. The strategy also includes sustainable vector control through agronomical techniques as well as regular tree pruning and soil fertilization. Quantitative real-time PCR assessments performed in a mid- and long-term studies showed a significant reduction in the concentration in the leaf xylem tissue upon treatment, improving olive tree yield. Both H-NMR metabolomic and mass spectrometric lipidomic analyses of leaf extracts revealed the occurrence of biomarkers linked to disease or tree restoration. The effects of mannitol and oleuropein derivatives, 13-oxylipins/DOX-oxylipins and 9-oxylipins appear to be related to the attenuation of disease symptoms. Both techniques indicate rapid reprogramming of metabolic tree activity upon spray treatment to regain tree health. Multiscale satellite imagery monitoring through high-resolution Sentinel-2, very high-resolution Pleiades and vegetation indices confirmed the robustness of the strategy over several years in both experimental and productive olive groves. Currently, this strategy is applied in many infected olive groves in Salento. Notably, some aggressive fungal species belonging to the genus have been recently found to be associated with olive trees that show symptoms similar to those induced by . Coinfections between this bacterium and fungi have also been frequently observed, suggesting the need for a more in-depth assessment of the epidemiology and management of OQDS.

中文翻译：

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由叶缘焦枯病菌亚种（Xylella fastidiosa subsp.）引起的橄榄衰退病综合体的管理。 pauca 和 Neofusicaccum spp.位于意大利普利亚大区


亚种() 与橄榄快速衰退综合症 (OQDS) 有关，这是一种影响萨伦托（意大利普利亚）橄榄园的严重疾病。通过一系列跨学科研究，制定并评估了旨在维护传统橄榄种质的有效管理策略。具体来说，从春季到初秋，每月在树冠上喷洒一次含有锌 (4%)、铜 (2%) 和柠檬酸的全身生物复合制剂。该战略还包括通过农艺技术以及定期树木修剪和土壤施肥进行可持续病媒控制。中长期研究中进行的定量实时 PCR 评估表明，处理后叶片木质部组织中的浓度显着降低，从而提高了橄榄树的产量。叶子提取物的 H-NMR 代谢组学和质谱脂质组学分析揭示了与疾病或树木恢复相关的生物标志物的出现。甘露醇和橄榄苦苷衍生物、13-oxylipins/DOX-oxylipins 和 9-oxylipins 的作用似乎与疾病症状的减弱有关。两种技术都表明，在喷雾处理后，代谢树的活性会快速重新编程，以恢复树木的健康。通过高分辨率 Sentinel-2、超高分辨率昴宿星团和植被指数进行的多尺度卫星图像监测证实了该策略多年来在实验性和生产性橄榄树林中的稳健性。目前，这一策略已应用于萨伦托许多受感染的橄榄园。值得注意的是，最近发现一些属于该属的侵略性真菌物种与橄榄树有关，这些真菌表现出与橄榄树相似的症状。 这种细菌和真菌之间的混合感染也经常被观察到，这表明需要对 OQDS 的流行病学和管理进行更深入的评估。