Wingfield, Michael J.Marincowitz, SeonjuBarnes, IreneTarigan, MarthinSolis, MyriamDuran, AlvaroPham, N.Q.2024-01-102024-01-102023-12Wingfield M.J., Marincowitz S., Barnes I., Tarigan M., Solís M., Durán A. & Pham N.Q. (2023). First report of phyllode rust on Acacia crassicarpa outside its native range. Forest Pathology, 53, e12839. https://doi.org/10.1111/efp.12839.1437-4781 (print)1439-0329 (online)10.1111/efp.12839http://hdl.handle.net/2263/93890DATA AVAILABILITY STATEMENT : The data that support the findings of this study are available from the corresponding author upon reasonable request.Acacia crassicarpa is a tropical tree species native to Australia, West Papua and Papua New Guinea, which has been widely used to establish plantations in the lowland humid tropics of Sumatra and Kalimantan. These trees, able to grow on sites having relatively poor nutrition, have been relatively free of serious disease problems. A rust disease infecting the phyllodes of A. crassicarpa has recently been encountered in plantations in various areas of Indonesia and Malaysia where they are not native. In this study, the rust was collected and identified as Endoraecium violae-faustiae using DNA sequence analysis based on the internal transcribed spacer (ITS) region of the rDNA. This is the first record of the rust outside its native range. Damage at present appears to be relatively mild but the pathogen could become important in the future.en© 2023 The Authors. Forest Pathology published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution-NonCommercial License.AcaciaFungal pathogensIntroduced pathogenPlantation forestryRust diseaseSoutheast AsiaSDG-15: Life on landArticle