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首页> 外文期刊>Plant Disease >First report of botrytis blight caused by Botrytis cinerea on flowering dogwood (Cornus florida) in Italy.
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First report of botrytis blight caused by Botrytis cinerea on flowering dogwood (Cornus florida) in Italy.

机译：由灰葡萄孢引起的灰霉病疫情首次报道于意大利的山茱wood（Cornus florida ）。

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摘要

Flowering dogwood (C. florida) is a small deciduous tree whose showy inflorescences, clusters of bright red fruits and red and purple leaves in autumn, make it a much appreciated ornamental. In June 2008, severe outbreaks of a previously unknown blight were observed in several private gardens near Biella (northern Italy) after a rainy spring with temperatures ranging from 7 to 25 degrees C. Dogwoods in the gardens were 10-15 years old, and the disease was observed on 20-30% of 30 trees. First symptoms consisted of blighted leaves and then shoot dieback. As the disease progressed, entire leaves became necrotic and were covered by an abundant, soft, gray sporulating mycelium. The pathogen was identified as B. cinerea based on morphological and molecular characteristics, as well as pathogenicity tests. This is thought to be the first report of the presence of B. cinerea on C. florida in Italy. The disease has been reported in the United States as well as in Japan. At this time, the economic importance of Botrytis blight to flowering dogwoods in Italy is undetermined.
机译：开花的山茱wood（ C。florida ）是一棵小落叶乔木，其艳丽的花序，成簇的鲜红色水果以及秋天的红色和紫色叶子使它成为备受赞赏的观赏植物。 2008年6月，雨后的春季温度在7到25摄氏度之间，在比耶拉（意大利北部）附近的几个私人花园中爆发了一场以前未知的疫病的严重暴发。花园里的山茱s有10-15年的历史，在30棵树的20％至30％上观察到这种病。最初的症状包括枯萎的叶子，然后枯萎。随着病情的发展，整个叶子坏死，并被丰富，柔软，灰色的孢子菌丝覆盖。病原体被鉴定为B。灰霉病基于形态和分子特征以及致病性测试。认为这是关于B的首次报道。灰质在 C上。佛罗里达在意大利。该病在美国和日本都有报道。目前，葡萄灰霉病对意大利开花的山茱s的经济重要性尚未确定。

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