摘要
采用药膜法,以高效氯氰菊酯为对照药剂,测定了鸦胆子Brucea javanica(L.)Merr.、番荔枝Annona squamosa L.、葫蔓藤Gelsemiumelegans Benth 3种植物的氯仿萃取物对蝶蛹金小蜂Pteromalus puparum L.的触杀毒性以及对产卵寄生效果的影响。结果表明,3种植物提取物对蝶蛹金小蜂成虫触杀毒性较低,处理24h死亡率分别为13.2%、8.2%、2.0%;对蝶蛹金小蜂的产卵寄生效果亦无不良影响。而化学农药高效氯氰菊酯对蝶蛹金小蜂的触杀毒性极高,处理3h死亡率达到100%,该药剂处理寄主蛹后对蝶蛹金小蜂的产卵寄生效果有较大影响,其出蜂蛹率仅为对照的1/6。
The contact toxicity of chloroform extracts of Brucea javanica（L.） Merr.,Annona squamosa L.and Gelsemium elegans Benth to Pteromalus puparum L.were evaluated in laboratory by the method of dry film bioassay,and influence of the plant extracts on the parasitism of the wasp was also tested,with the chemical pesticide beta-cypermethrin as control.Results showed that the three plant extracts were safe to P.puparum and did not affect its parasitic effect.The mortality of the wasp 24 h after being treated with the three plant extracts were 13.2%,8.2% and 2.0%,respectively.Beta-cypermethrin had significant contact toxicity to the wasp and the mortality reached 100% 3 h after treatment.Beta-cypermethrin also reduced the wasp＇s ability to parasitize host pupae,rate of treated host pupae from which wasps emerged was only one sixth of that of plant-extracts treated pupae.
出处
《中国生物防治学报》
CSCD
北大核心
2011年第1期27-31,共5页
Chinese Journal of Biological Control
基金
国家自然科学基金资助项目(30269002)
广西自然科学基金资助项目(桂科基0731048)
广西农业科学院基本科研业务专项[200926(基)]
关键词
蝶蛹金小蜂
植物提取物
触杀毒性
寄生
Pteromalus puparum
plant extract
contact toxicity
parasitism
