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前言裸子植物通常很少安生枯萎病。至今,有报道的松怙萎病只有两种。一种是由长啄壳菌属(Coratocystis)的蓝变菌引起,另一种由松材线虫(Bursaphelenchusxylophilus)引起。两种枯萎病都是在
Introduction Gymnosperms are generally less susceptible to blight. So far, there are only two kinds of reported wilt disease. One is caused by the blue-flexing bacteria of the genus Coratocystis and the other is caused by the Bursaphelenchus xylophilus. Both blights are there