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一种未知病原的香蕉细条病在台湾已有十多年的发生历史。当时,也许因为在蕉叶上还发生着由Mycosphaerella fijiensisMorelet var.difformis Mulder＆Stover引起的流行性黑色叶斑病,因此认为此病是次要病害。然而,在台湾为了有效地防治黑色叶斑病,国立大学的H.J.SU建立了预测系统和航空施药作业,在此之后,近年来此病日趋严重。在香蕉萌发后,不施药防治,细条病通常是在蕉果成熟期间流行。木文报道香蕉这种叶部新病害的病原学。有关该病的简要论述已有发表。 把带有初期斑点的病叶组织其表面用75％酒精消毒30秒钟,然后用解剖针从各病斑中取出小块的病叶组织(大约1×1mm),放置于马铃薯培养基(PDA)或2 ％水洋菜中。在24℃下,接种到培养基上,每天检查其生长情况。在多数情况下,接种三天后病叶组织中仅能长出一种真菌,然后把其分离出来,转移到马铃薯培养基上。
An unknown pathogen of banana streak has been in Taiwan for more than a decade. At that time, the disease was considered a secondary disease, perhaps because of the epidemic black leaf spot caused by Mycosphaerella fijiensisMorelet var.difformis Mulder & Stover, perhaps on the banana leaf. However, in Taiwan, H.J.SU, a national university, established the forecasting system and aeronautical pesticide application in order to effectively control the black leaf spot disease. After that, the disease became more serious in recent years. After the banana germination, no application of control, thin strip disease is usually popular during banana ripening. Woody reports the etiology of a new disease in banana leaves. A brief discussion of the disease has been published. The surface of diseased leaf tissue with primary spots was disinfected with 75% alcohol for 30 seconds, and then a small piece of diseased leaf tissue (about 1 × 1 mm) was removed from each lesion with a dissecting needle and placed in a potato culture medium (PDA ) Or 2% aquatic vegetables. At 24 ° C, inoculate the medium and check its growth daily. In most cases, only one fungus grows in the diseased leaf tissue three days after inoculation and is then separated and transferred to potato culture medium.