| 云杉落针病流行规律的研究 |
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| 引用本文： | 孙国忠 杨庆和. 云杉落针病流行规律的研究[J]. 四川林业科技, 1998, 19(1): 17-22 |
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| 作者姓名： | 孙国忠 杨庆和 |
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| 作者单位： | 四川省森林病虫防治检疫总站，凉山州林业局，夹金山林业局 |
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| 摘 要： | 云杉落针病由云杉散斑壳（Ｌｏｐｈｏｄｅｒｍｉｕｍｐｉｃｅａｅ）引起，危害鳞皮云杉（Ｐｉｃｅａｒｅｔｒｏｆｌｅｘａ）和粗枝云杉（Ｐ．ａｓｐｅｒａｔａ），但很少危害康定云杉（Ｐ．ｍｏｎｔｉｇｅｎａ），川西云杉（Ｐ．ｂａｌｆｏｕｒｉａｎａ）和麦吊云杉（Ｐ．ｂｒａｃｈｙｔｙｌａ）。子囊盘破裂，子囊孢子释入和侵染针叶，５月～９月出现，７月中下旬达高峰期。针叶上的症状８月中下旬出现，１２月中旬达高峰，以后逐渐停止，病叶于次春开始脱落。病害在１０年～３０年生的鳞皮云杉人工更新幼林里流行。
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| 关 键 词： | 落针病 云杉散斑壳 鳞皮云杉 病害流行 |
A Study of the Epidemic Law of Spruce Needle Cast |
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| Sun Guozhong et al.. A Study of the Epidemic Law of Spruce Needle Cast[J]. Journal of Sichuan Forestry Science and Technology, 1998, 19(1): 17-22 |
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| Authors: | Sun Guozhong et al. |
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| Affiliation: | Sichuan Station of Forest Disease and Pest Control and Quarantine |
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| Abstract: | Spruce needle cast was caused by Lophodermium piceae which affected Picea retroflexa and P.asperata, but not P.montigena,P.balfouriana and P.brachytyla. Slitting apothecia,releasing ascospores and infecting needles appeared from May to September,and peaked in the second and last ten days of July. Symptom on needles occurred in the second and last ten days of August,peaked in the second ten days of December,and then gradually stopped in the following spring in which diseased needles began to fall. Needle cast became epidemic in the 10 to 30 years old spruce stand by artificial regeneration. |
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| Keywords: | Needle cast Lophodermium picede P.retroflexa Epidermic |
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