First report of canker and wilt disease in eucalypt caused by Ceratocystis manginecans in Vietnam
T. T. Trang, P. Q. Thu, T. Q. Khai, T. A. Tuan, T. X. Hinh, N. V. Nam, P. T. T. Thuy & N. M. Chi
Indian Phytopathology volume 75, pages 287–291 (2022)
Abstract: Eucalyptus species are a significant component of forest plantation estate in Vietnam with a total area of 350,000 ha, but Ceratocystis is a serious canker and wilt pathogen of Eucalyptus plantations. This research identified canker and wilt pathogen causing stem cankers, associated with blue staining symptom on the wood, wilted canopies and tree death in eucalpt plantations. Based on their β-tubulin gene sequences, nine isolates of the canker and wilt pathogens attacking Eucalyptus urophylla and E. camaldulensis plantations in Vietnam were identified as Ceratocystis manginecans. The C. manginecans were shown to be pathogenic with E. urophylla and E. camaldulensis cuttings in a nursery trial. To mitigate against further damage, it is suggested that there should be studies on prevention and screening of varieties to effectively manage wilt disease in Vietnam.
