The dominanceof tea over coffee in the British Empire canbe traced to the failure of coffee in British Ceylon in the 1870s due to infectionwith leaf blight, caused by the fungus Hemileia vastatrix.

• 在大英帝国时期，由于感染了由真菌咖啡锈病引起的枯叶病，茶叶的优势超过咖啡可以被追溯到十九世纪七十年代英国在锡兰种植咖啡的失败。