当前位置: 首页 > 文章 > 鱼藤酮和茶皂素对槟榔红脉穗螟的联合毒力 生物安全学报 2015,24 (3) 241-243
Position: Home > Articles > Combined toxicity of rotenone and tea saponin on Tirathaba rufivena Walker Journal of Biosafety 2015,24 (3) 241-243

鱼藤酮和茶皂素对槟榔红脉穗螟的联合毒力

作  者:
吕朝军;钟宝珠;苟志辉;吴海霞;孙晓东;覃伟权
单  位:
中国热带农业科学院椰子研究所;海南省林业科学研究所
关键词:
鱼藤酮;茶皂素;红脉穗螟;增效作用
摘  要:
【背景】鱼藤酮和茶皂素均为典型的植物源药剂,而两者混配对棕榈害虫的防治效果还未见报道。【方法】采用室内毒力测定方法研究了鱼藤酮和茶皂素以不同比例混配对槟榔红脉穗螟的联合毒力。【结果】鱼藤酮和茶皂素对红脉穗螟3龄幼虫的LC50分别为19.06和35.07 mg·L-1。鱼藤酮和茶皂素以有效成分1∶1、5∶1、1∶2和1∶5混配后,对红脉穗螟均表现出增效作用。其中以1∶5混配处理组的共毒系数最高,达327.26;1∶2混配处理组次之,共毒系数为298.16。【结论与意义】鱼藤酮和茶皂素以合理比例混配,对红脉穗螟具有增效作用。
译  名:
Combined toxicity of rotenone and tea saponin on Tirathaba rufivena Walker
作  者:
Chao-jun L;Bao-zhu ZHONG;Zhi-hui GOU;Hai-xia WU;Xiao-dong SUN;Wei-quan QIN;Coconut Research Institute,Chinese Academy of Tropical Agricultural Sciences;Forestry Research Institute of Hainan Province;
关键词:
rotenone;;tea saponin;;Tirathaba rufivena Walker;;synergism
摘  要:
【Background】Rotenone and tea saponin are typical botanical pesticides,but we have no information about their combined effect on palm pests. 【Method】The bio-assay method was used to detect the toxicity level and co-toxicity coefficient( CTC) of rotenone and tea saponin on the palm pest,Tirathaba rufivena. 【Result】The LC50 of rotenone and tea saponin on 3rd instar larvae of T.rufivena were 19. 06 mg·L-1and 35. 07 mg·L-1,respectively. The rotenone mixed with tea saponin at proportions of 1 ∶ 1,5 ∶ 1,1 ∶ 2 and 1 ∶ 5 all showed synergistic effects to T. rufivena. The highest synergism was observed at a mixture of rotenone ∶ tea saponin at a ratio of 1 ∶ 5,with a CTC of 327. 26,followed by a blend of 1 ∶ 2,with a CTC of 298. 16. 【Conclusion and significance】Mixed at reasonable proportions,rotenone and tea saponin could express synergistic effects to T. rufivena.

相似文章

计量
文章访问数: 14
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊