Section outline
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The use of tested virus-free plant material is strongly recommended, especially when the ash trees are planted as street trees in cities, where they may face adverse environmental conditions (Bandte et al., 2022). Since other viruses have been already reported to infect Fraxinus spp. and privet (Büttner et al. 2023), reliable diagnosis of PrLBaV should be done by molecular methods such as RT-PCR with specific primers from symptom-bearing leaf material according to Navarro et al. (2017).