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苹果垢斑病和煤点病近年在云南省丽江、昆明等地发生严重,发病率高达90%,描述了垢班病和煤点病症状。经病原鉴定垢斑病病原为仁果粘壳孢菌Gloeodes pomigna(Schu)Colby;煤点病病原为仁果裂盾菌Schizothyriumpomi(Mont)v.Arx;两病多混合发生,气候冷凉,雨量多,湿度大,日照少,果园地势低洼,树龄15年以上发病严重;海拔2800m以上,8月份平均气温15℃以下的地区很少发病;金冠对两病均感病,富丽、红星较抗病;药效试验百菌清和波尔多液效果好,防效达90%以上,可作大面积防治选用药剂。
Apple leaf spot disease and coal point disease in Lijiang in Yunnan Province in recent years, Kunming and other places serious, the incidence rate as high as 90%, described scale disease and coal disease symptoms. The pathogen identification of the causal agent of the caecum was Gloeodes pomigna (Schu) Colby; the causal agent of coal spot was Schizothyriumpomi (Mont) v. Arx; two disease mixed, cold climate, rainfall, humidity, low sunshine, orchard low-lying, age 15 years or more serious disease; altitude above 2800m, the average temperature in August below 15 ℃ less incidence; Golden Delicious The two diseases are susceptible, rich, red star is more resistant to disease; efficacy test chlorothalonil and Bordeaux mixture effect is good, control effect of more than 90%, can be used for large-scale prevention and control of selected drugs.