摘要
分别用31科47种非嗜食植物乙醇提取物处理的稻株饲养褐飞虱若虫,应用干扰作用控制指数(IIPC),评价对褐飞虱(Nilaparvata lugens)若虫存活的干扰作用。结果表明,处理后24 h,10种供试植物提取物对褐飞虱若虫均有明显的毒杀效果。其中印楝素的毒杀作用最强,对1～2龄、3～5龄若虫的IIPC分别为0.250、0.219,即具有75%、78.10%的毒杀作用;其次为苦楝、蓖麻和芒萁3种乙醇提取物,对1～2龄若虫毒杀作用达60%以上;此外,薇甘菊、飞机草、马樱丹等6种乙醇提取物的作用较强,IIPC值在0.400～0.500,而其它37种植物提取物的作用较弱。
The rice plants,treated respectively with ethanol extracts of 47 kinds of non-host plants,were used to feed nymphs of Brown Planthopper（BPH）,Nilapavata lugens,and the interferent effect of the extracts against nymphs was evaluated in laboratory with the interference index of population control（IIPC）.The result indicated that 10 kinds of ethanol extracts had a significant effect against BPH nymph after 24 hours.The killing effect of azadirachtin was the highest on the nymph of BPH,whose IIPC values were 0.250,0.219 on the nymphs of 1st^2nd instars,3rd^5th instars,i.e.the toxic effects on the nymphs were 75.00%,78.10%,respectivelly.The killing effects of 3 extracts of Melia azedarach,Ricinus communis,Dicranopreris pedata,were all more than 60.00%.Besides,6 kinds of ethanol extracts,such as Mikania micrantha,Chromolaena odorata,Lantana camara,et al,had a preferable toxic effect on nymph,their values of IIPC were in 0.400 0~0.500 0,yet the others had less effect on nymph of BPH.
出处
《江西农业大学学报》
CAS
CSCD
北大核心
2011年第3期465-468,475,共5页
Acta Agriculturae Universitatis Jiangxiensis
基金
国家支撑科技计划课题(2008BADA5B01
2008BADA5B04)资助
关键词
褐飞虱
非嗜食植物次生物质
生物活性
brown planthopper（BPH）
the non-preferable plant secondary substances
bioactivity
