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花椒锈病是危及花椒生产的严重病害之一。对西北主要产椒区的调查,其发病率均在60%以上,最高可达90～100%;病情指数一般都达到30～75。病害发生的空间动态符合逻辑斯蒂曲线。病害的发生程度与降雨、花椒品种有关,而与树龄、海拔高度关系不大。该病菌为害叶片、叶轴,引起叶子大量提前脱落,致使椒树再次萌叶。锈菌在花椒上产生夏孢子和冬孢子;冬孢子不经休眠阶段而萌发,萌发最适温度18～25℃。
Prickly ash rust is one of the serious diseases endangering the production of prickly ash. Survey of the main producing pepper in the northwest, the incidence rate of 60% or more, up to 90 to 100%; disease index generally reached 30 to 75. The spatial dynamics of the disease coincided with the logistic curve. The occurrence of disease and rainfall, pepper varieties, but with age, altitude has little to do. The pathogen damage leaves, leaf axis, causing a large number of leaves in advance off, causing pepper trees again sprouting leaves. The rust bacteria produce the summer spores and the winter spores on the pepper; the winter spores germinate without the dormant stage, and the optimum temperature for germination is 18-25 ° C.