First report of Bradysia difformis (Diptera: Sciaridae) Damage to Phalaenopsis orchid in China
First report of Bradysia difformis (Diptera: Sciaridae) Damage to Phalaenopsis orchid in China
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DOI：
10.1016/j.aspen.2014.12.005
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发表时间：
2015-03-01
影响因子：
1.5
通讯作者：
Xiang, Mei Mei
中科院分区：
文献类型：
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作者：
Han, Qun Xin;Cheng, Dong Mei;Xiang, Mei Mei
蝴蝶兰是世界上最有价值的观赏花卉之一。由于可见的损害大大降低了其舒适性，有限的损害是允许在其生产。在广东温室中发现一种不明昆虫对蝴蝶兰幼苗造成严重危害。该虫在几乎所有的蝴蝶兰温室都有较高的发生量，24 h内黄粘虫成虫可达303头。对任何害虫的有效管理策略都需要准确识别。因此，对该害虫进行正确的识别，以减轻其对该产业的危害是当务之急。本文报道了该虫在蝴蝶兰上的为害情况及形态特征。分子分析的基础上的488 bp部分的线粒体DNA的细胞色素氧化酶I（MT COI）区域进行补充形态特征，在确定这种害虫。根据形态特征和线粒体COI基因构建的系统发育树，将其鉴定为双翅目（Diptera）Sciaridae，Bradysia difformis Frey，1948（= Bradysia paesta Tuomikoski，1960）。文献检索表明，B.在欧洲和南非，异形虫是温室和林业苗圃的常见害虫。我们的研究是B的首次记录。中国蝴蝶兰的主要危害。(C)2015韩国应用昆虫学会、台湾昆虫学会、马来西亚植物保护学会。Elsevier B.V.出版，保留所有权利。
Phalaenopsis orchid is among the most valuable ornamental flowering plants in the world. Since visible damage substantially decreases its amenity, limited damage is allowed in its production. An unknown insect species (Diptera: Sciaridae) was found to cause serious damage to the seedling of the Phalaenopsis orchid in greenhouses in Guangdong, China. The insect occurred in high populations in almost all greenhouses that grow Phalaenopsis orchid and the number of sciarid adults trapped on a yellow sticky card could reach as many as 303 in 24 h. An effective management strategy on any pest requires an accurate identification. Therefore, it is urgent to identify this pest correctly to mitigate its damage to the industry. Damage to Phalaenopsis orchid and morphological characteristics of the pest was described in this study. Molecular analyses based on the 488-bp portion of the mitochondrial DNA from the cytochrome oxidase I(mt COI) region were conducted to supplement morphological characteristics in identifying this pest. Both morphological characteristics and phylogenetic tree constructed with mt COI genes identified this sciarid as Bradysia difformis Frey, 1948 (= Bradysia paupera Tuomikoski, 1960) (Diptera: Sciaridae). A literature search indicated that B. difformis has been a common pest of greenhouse and forestry nurseries in Europe and South Africa. Our study is the first record of B. difformis damaging Phalaenopsis orchid in China. (C) 2015 Korean Society of Applied Entomology, Taiwan Entomological Society and Malaysian Plant Protection Society. Published by Elsevier B.V. All rights reserved.