Survey of the native insect natural enemies of Hyphantria cunea (Drury) (Lepidoptera: Arctiidae) in China
Survey of the native insect natural enemies of Hyphantria cunea (Drury) (Lepidoptera: Arctiidae) in China
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DOI：
10.1017/s0007485308005609
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发表时间：
2008-03
影响因子：
1.9
通讯作者：
Z. Yang;X. Y. Wang;J. R. Wei;H. Qu;X. Qiao
中科院分区：
文献类型：
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作者：
Z. Yang;X. Y. Wang;J. R. Wei;H. Qu;X. Qiao
美国白蛾Hyphantria cunea（Drury）隶属鳞翅目：灯蛾科，是我国重要的外来入侵害虫。1996 ~ 1999年在我国5省1市进行了天敌昆虫调查，以筛选生物防治的有效天敌昆虫。共发现捕食性步甲2种（鞘翅目），寄生蜂25种，其中寄生蜂23种（膜翅目），重寄生蜂5种，寄蝇2种（双翅目）。两个步甲捕食幼幼虫网内，两个茧蜂寄生幼虫，和18个寄生蜂攻击的美国白蛾蛹和/或“幼虫蛹”阶段。其中1属9新种，4中国新记录种，均由杨文军等作者描述并发表。越冬代和第1代（夏代）的平均寄生率分别为25.8%和16.1%。这些结果表明，这些天敌在害虫的自然控制中起着重要作用。美国白蛾Chouioia cunea Yang是一种群居蛹内寄生蜂，在我国是一种很有前途的美国白蛾生物防治剂。
Abstract The fall webworm, Hyphantria cunea (Drury) (Lepidoptera: Arctiidae), is an invasive and important pest in China. Investigations on insect natural enemies have been conducted from 1996 to 1999 in five provinces and one municipality of China in order to select effective species for biological control. Two carabid predators (Coleoptera) and 25 parasitoid species were found, among which 23 were parasitic wasps (Hymenoptera), including five hyperparasitic species and two tachinid flies (Diptera). The two carabids preyed on young larvae inside webs, two braconid wasps parasitized larvae, and 18 parasitoid species attacked the fall webworm during the pupal and/or ‘larval-pupal’ stages. Among these parasitoids, there were one genus and nine species that are new to science and four species new to China, which were described and published by the senior author Yang. The average parasitism rates of fall webworm pupae were 25.8% and 16.1% in the overwintering generation and the first generation (summer generation), respectively. These findings reveal that these natural enemies play an important role in the natural control of the pest. Chouioia cunea Yang (Hymenoptera: Eulophidae), a gregarious pupal endo-parasitoid, was recommended as a promising biological control agent against the fall webworm in China.