›› 2009, Vol. 21 ›› Issue (3): 0-292.

• 论文 •    

喜树碱对稻飞虱、二化螟和蚜虫的杀虫作用评价

童森淼 1,王品维 1,孙逸钊 1,张立钦 1,*,马建义 1,盛仙俏 2   

  1. 1 浙江林学院林业与生物技术学院, 浙江临安311300;2 浙江金华市植物保护站,浙江金华321000
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-05-25 发布日期:2009-05-25

lnsectiddal effect of camptothecin against Nitaparvata Lugens,Brevicoryne Brassicae and Chilosuppressalis Walker

TONG Sen-miao;WANG Pin-wei;SUN Yi-zhao;ZHANG Li-qin;*;MA Jian—yi;SHENG Xian-qiao   

  1. 1 School of Forestry and Biotechnology, Zhejiang Forestry College,Linan 311300,Zhejiang,China;2 Plant Protection Station, Jinhua 321000,Zhejiang
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-05-25 Published:2009-05-25

摘要: 以喜树碱为活性成份,筛选新生物源杀虫剂。室内生物测定结果表明:0.2%的喜树碱乳油对甘蓝蚜虫、水稻稻飞虱和二化螟有较高的生物活性,其ECho和ECho分别为0.1~0.6 mg/L和0.4~5.0 mg/ L,其对3种靶标害虫的活性大小依次为:水稻稻飞虱>甘蓝蚜虫>水稻二化螟。田间试验发现,0.2% 的喜树碱乳油对蚜虫和稻飞虱的最大防效达到70% ~95% ,对照药剂10%蚜虱净的最大防效为63% 一98%,两者无显著差异;0.2%的喜树碱乳油对水稻二化螟的保苗效果和防效分别为85%和88%,同时5%锐劲特的保苗效果和防效分别为93%和95%两者无显著差异。因此,喜树碱是具有较高活性的新生物源杀虫剂。

关键词: 喜树碱, 稻飞虱, 二化螟, 蚜虫, 新生物源杀虫剂

Abstract: The insecticidal effect of camptothecin against Nilaparvata Lugens,Brevicoryne Brassicae and Chilosuppressalis Walker was carried out under laberatory and field tests.A bioassay showed that 0.2% camptotbecin has strong contact toxicity,with LC50 and IC90 values of 0.1—0.6 mg/L and 0.4—5.0 mg/L,respectively.The descending order of activity was:Nilaparvatalugens> Brevicoryne brassicae > Chilo suppressalis.Field tests showed that the survival rate of B.brassieae and N.lugens were between 70% and 95%,which were not signiticantly different from the 10% imidacloprid WP control values of 63% and 98%.The survival and susceptibility of C.suppressalis were 85% and 88%,respectively,which were not significantly different from the 5% Regent SC control values of 93% and 95%, respectively.The results showed that camptotheein has strong insecticidal activity against above three agricultural pests.

Key words: camptotheein, Nilaparvata lugens, Chilosuppressalis walker, Brevicoryne brassicae, new natural insecticide