中山柏尖枯病在四川丘陵地区的苗圃幼林中发生较普遍,千株感病株率达76.0％,病情指数为43.2。该病主要为害当年生梢、叶,发病严重时导致植株枝枯叶少,树势衰弱、萎蔫,甚至死亡。致病病原菌为交链孢霉(Alemaria sp.)孢和黑霉(N, grospora sp.)。该病年发生期约10个月右右,6—8月份为发病盛期,病害的流行需要高温、多雨条件。林地(苗圃)土壤粘重,易积水是导致病害严重发生的关键。 Cypress twig blight occurs in the young nursery of hilly areas in Sichuan province, with a prevalence of 76.0% and a disease index of 43.2. The disease is mainly harmful to shoots, leaves, when the disease is serious, resulting in fewer branches and leaves, tree weakness, wilting, and even death. The pathogenic pathogens are Alemaria sp. And N, grospora sp. The disease period of about 10 months or so, 6-8 months for the peak growth period, the epidemic needs high temperature, rainy conditions. Woodland (nursery) soil sticky, easy to accumulate water is the key to the serious disease.