JIN Da-yong,YU Yong-wan.Effect of Bacillus thuringiensis CAB109 on Growth and Development of Spodoptera exigua Larvae[J].Northern Horticulture,2013,37(06):122-124.
苏云金杆菌CAB109对甜菜夜蛾幼虫生长发育的影响
- Title:
- Effect of Bacillus thuringiensis CAB109 on Growth and Development of Spodoptera exigua Larvae
- 文章编号:
- 1001-0009(2013)06-0122-03
- Keywords:
- Bacillus thuringiensis; CAB109 strain; Spodoptera exigua; sublethal concentration; growth and development
- 分类号:
- S 476.1
- 文献标志码:
- A
- 摘要:
- 采用苏云金杆菌CAB109亚致死浓度（依次为0、1×102、1×103、1×104、1×105、1×106 cfu/mL）处理甜菜夜蛾2龄幼虫，研究苏云金杆菌CAB109菌株对甜菜夜蛾幼虫的影响。结果表明：用CAB109菌株处理后7 d，对幼虫的死亡率影响显著，死亡率分别为5.0%、8.3%、15.0%、23.3%、36.7%、55.0%；处理后6 d，对幼虫生长影响显著，幼虫的平均体重分别为2.63、2.19、2.03、1.87、1.34、0.96 mg；对幼虫发育的影响也显著，幼虫的发育历期分别为16.3、16.8、17.5、18.2、19.5、21.2 d。CAB109菌株的亚致死浓度除能直接杀死甜菜夜蛾幼虫外，还对存活幼虫的后续也产生显著影响。
- Abstract:
- The effect of Bacillus thuringiensis CAB109 on growth and development of Spodoptera exigua larvae were studied using sublethal concentrations (0，1×102，1×103，1×104，1×105 and 1×106 cfu/mL) of Bacillus thuringiensis CAB109 strain to treat the second instar larvae of Spodoptera exigua.The results showed that the mortality of larvae were 5.0%，8.3%，15.0%，23.3%，36.7%，55.0% respectively after treated by Bacillus thuringiensis CAB109 for 7 d.The body weight of larvae were 2.63，2.19，2.03，1.87，1.34，0.96 mg respectively after treated for 6 d.The developmental period of larvae were 16.3，16.8，17.5，18.2，19.5，21.2 d respectively.In conclusion，the sublethal concentration could not only kill the larvae of Spodoptera exigua but had effect on the larvae on growth and development.
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备注/Memo
第一作者简介：金大勇（1962-），男，朝鲜族，吉林九台人，博士，副教授，现主要从事害虫生物防治等研究工作。