摘要
通过室内人工饲养,对长沙地区菜粉蝶盘绒茧蜂的生物学特性进行了研究。结果表明,在长沙,菜粉蝶盘绒茧蜂一年发生4代,从4月下旬开始到7月中旬结束。菜粉蝶盘绒茧蜂寄生的4个高峰期分别为5月上旬、6月上旬、6月下旬、7月上旬,寄生率范围为18.48%～27.89%。从卵发育到成虫的平均历期变化范围为29.4℃下13.5d至20.3℃下16.2d。菜粉蝶盘绒茧蜂喜寄生菜青虫2龄和3龄幼虫,很少寄生1、4、5龄幼虫。喂蜜的菜粉蝶盘绒茧蜂寿命明显长于未喂蜜的菜粉蝶盘绒茧蜂。
Through feeding the Larva of Pieris rapae and its parasitic nature enemies-Cotesia glomerata indoor, authors studied the bionomic of Cotesia glomerata. Results show that Cotesia glomerata occurs 4 generations a year in the area of Chansha, the time is from late April to mid July. Four peaks of the Larva of Pieris rapae by Cotesia glomerta were served, early May, early June, late June, early July respectively. The parasitization rate ranged from 18.48%～27.89%.The total development time from egg to adult ranged from 13.5 days at 29.4 ℃ to 16.2 days at 20.3 ℃. Cotesia glomerata seldom parasitzed 1th, 4th, 5th instar larvae, but preferred second instar larve.honey solution can lengthen the adult longevity apparently.
出处
《湖南农业科学》
2005年第3期51-53,共3页
Hunan Agricultural Sciences
