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。
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′~114°56′E,41°25′~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.
出处
《植物保护》
CAS
CSCD
北大核心
2010年第3期152-154,共3页
Plant Protection
基金
国家科技支撑计划课题(2005BA529A03,2005BA529A04)
关键词
草地螟
暗黑赤眼蜂
寄生率
性比
Loxostege sticticalis
Trichogramma pintoi
parasitic rate
sex ratio