咖啡叶锈病是咖啡树的主要病害之一。受害植株严重落叶,导致营养枯竭而死亡。如结果期感病,可使产量损失20—30％。潞江坝于1957年引种咖啡,1978年后大面积种植,现面积近8,000亩。历年来咖啡锈病零星分布,在海拔较高的老水井(1,038米)、香树队(954米)和上江八罗田(1,300米左右)常年有锈病孢子,但未发生过大面积流行。1978年以来随种植面积增大,种植密度也增大(416株/ Coffee leaf rust is one of the major diseases of coffee trees. Damaged plants seriously deciduous, leading to nutritional death and death. If the result of the disease, can yield 20-30% loss. Lujiang Dam introduced coffee in 1957 and planted it in large area after 1978, covering an area of ​​nearly 8,000 mu. Over the years, the number of coffee rusts sporadically distributed. There are perennial rust spores in the old wells (1,038 m), the Fragrances (954 m) and the Shangjiang Bayuluotian (about 1,300 m), but no large-scale epidemic occurred. Since 1978, with the increase of planting area, planting density also increased (416 plants /