Abstract
Jackfruit (Artocarpus heterophyllus) brown rot has been observed in Los Baños, Laguna, Philippines. The disease was characterized by dark brown to black discoloration in the center of the lesion, advancing radially with a yellow to brown margin. The lesion center has grayish mycelial mass and is relatively more tender than the margin and unaffected areas. Only one fungus was isolated and identified as Lasiodiplodia theobromae based on combined morphological and molecular characterization assays. The fungus was pathogenic to jackfruit and showed brown rot 6 days post-inoculation. The same fungus was reisolated from the inoculated sites, thus establishing Koch’s postulate. To our knowledge, this is the first confirmed report of jackfruit brown rot caused by Lasiodiplodia theobromae in the Philippines.
References
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Taylaran, A.D., Bagsic-Posada, I., Cueva, F.D. et al. First report of Lasiodiplodia theobromae causing jackfruit (Artocarpus heterophyllus) brown rot in the Philippines. Indian Phytopathology 74, 1151–1153 (2021). https://doi.org/10.1007/s42360-021-00392-6
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DOI: https://doi.org/10.1007/s42360-021-00392-6