摘要： 管侧沟茧蜂是寄生甜菜夜蛾和粘虫等害虫的低龄幼虫寄生蜂。本文以粘虫幼虫为繁殖寄主,对管侧沟茧蜂的发育起点温度、有效积温及发育历期进行了研究,试验结果表明:管侧沟茧蜂卵-结茧的发育起点温度为12 1℃,有效积温为115 15日度,茧-羽化的发育起点温度为8 47℃,有效积温为99 47日度。发育历期随温度的升高而缩短,该寄生蜂最适发育温度为2327℃,在25℃条件下全世代发育历期为14 64d。
关键词:
管侧沟茧蜂,
发育历期,
发育起点温度,
有效积温
Abstract: Microplitis tuberculiter ( wesmael) can parasitize in the young larvae of Spodoptera exigua (H×bner) and Pseudaletia separata ( Walker). Researches on developmental durations, accumulated tempera- ture and developmental zero of Microplitis tuberculifer Wesmael by Pseudaletia separata ( Walker). The result showed that developmental zero and accumulated temperature of egg-larva, pupae were 12. 1 × and 115×15 day- degree, 8×47 × and 99×47 day-degree. With the increasing of temperature its developmental duration become shorter. Its developmental temperature was 23-27 ×. Under 25 × condition developmental durations of one generation was 14×64 day.
Key words:
Microplitis tuberculifer Wesmael,
Developmental durations,
Accumulated temperature,
Deve-l opmental zero
中图分类号:
屈振刚, 王金耀, 祝丽英. 管侧沟茧蜂发育历期、发育起点温度及有效积温研究[J]. 华北农学报, 2004, 19(4): 100-101. doi: 10.3321/j.issn:1000-7091.2004.04.027.
QU Zhen-gang, WANG Jin-yao, ZHU Li-ying. Study on Developmental Durations, Accumulated Temperature and Developmental Zero of Microplitis tuberculifer Wesmael[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2004, 19(4): 100-101. doi: 10.3321/j.issn:1000-7091.2004.04.027.