Xylella fastidiosa present in Taiwan
A survey carried out in Taiwan (TW) revealed that 12 - 20% of all pear trees in the low-altitude areas of central Taiwan showed typical symptoms of pear leaf scorch disease. Further investigations were carried out to identify the causal organism of this disease. Microscopic observations, pathogenicity tests and serological tests showed that the causal organism was indeed Xylella fastidiosa (EPPO A1 quarantine pest). This represents the first well documented record of this disease in Asia.
Sources
Leu, L.S.; Su, C.C; (1993) Isolation, cultivation and pathogenicity of Xylella fastidiosa, the causal bacterium of pear leaf scorch disease in Taiwan.
Plant Disease 77, 642-646.