| 我国首次发现草地螟卵寄生蜂—暗黑赤眼蜂 |
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| 引用本文： | 田晓霞,罗礼智,胡毅,康爱国.我国首次发现草地螟卵寄生蜂—暗黑赤眼蜂[J].植物保护,2010,36(3):152-154. |
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| 作者姓名： | 田晓霞 罗礼智 胡毅 康爱国 |
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| 作者单位： | 1. 中国农业科学院植物保护研究所,植物病虫害生物学国家重点实验室,北京,100193
2. 河北省康保县植物保护站,076650 |
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| 基金项目： | 国家科技支撑计划课题 |
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| 摘 要： | 本文报道了我国2008年8月初首次实地发现的草地螟卵寄生蜂及其寄生率和性比。所发现的卵寄生天敌为暗黑赤眼蜂(Trichogramma pintoi Voegele)(膜翅目:赤眼蜂科)。发现暗黑赤眼蜂的地区位于河北省康保县(114°11′～114°56′E,41°25′～42°08′N,海拔1400m)。暗黑赤眼蜂对2代草地螟卵的寄生率为1%左右,雌雄性比随采集日期的推迟而增加。
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| 关 键 词： | 草地螟 暗黑赤眼蜂 寄生率 性比 |
Trichogramma pintoi,a new parasitoid of Loxostege sticticalis eggs found firstly in the field of Northern China |
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| Tian Xiaoxi,Luo Lizhi,Hu Yi,Kang Aiguo.Trichogramma pintoi,a new parasitoid of Loxostege sticticalis eggs found firstly in the field of Northern China[J].Plant Protection,2010,36(3):152-154. |
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| Authors: | Tian Xiaoxi Luo Lizhi Hu Yi Kang Aiguo |
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| Institution: | 1. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing100193, China; 2. Plant Protection Station of Kangbao County, Zhangjiakou, Hebei076650, China |
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| Abstract: | Trichogramma pintoi Voegele (Hymenoptera: Trichogrammatidae), as an egg parasitoid of the beet webworm Loxostege sticticalis L. (Lepidoptera: Pyralidae) was firstly found in the second generation eggs collected in the fields of Kangbao county, Hebei Province (114°11′E-114°56′E, 41°25′N-42°08′N, altitude 1 400 m) in early August of 2008. The parasitic rate of T. pintoi to the eggs of L. sticticalis in the field was around 1% and the sex ratio (female∶male) increased as the season progressed. |
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| Keywords: | Loxostege sticticalis Trichogramma pintoi parasitic rate sex ratio |
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