非嗜食植物次生化合物对小菜蛾实验种群的干扰作用  

Interference effects of extracts of non-preferable plants on experimental population of Plutella xylostella

作　　者：彭跃峰[1] 

机构地区：[1]华南农业大学昆虫生态研究室,广东广州510642

出　　处：《华南农业大学学报》2005年第1期56-59,共4页Journal of South China Agricultural University

基　　金：国家自然科学基金重点项目"蔬菜害虫种群控制的生态学原理"(39930120)

摘　　要：以干扰作用控制指数(IIPC)为评价指标,评价了20种非嗜食植物乙醇抽提物对小菜蛾实验种群的控制作用.结果表明,白花蒿ArtemisialactifloraWall.、反枝苋AmaranthusretroflexusL.、茜草RubiacordifoliaL.、飞机草ChromolaenaodorataL.、打碗花CalystegiahederaceaWall.、粪箕笃StephanialongaLour.、刺儿菜Cephalanoplossege tumBge.、猪毛草ScirpuswallichiiNees.对小菜蛾实验种群具有较强的干扰作用,干扰作用控制指数均在0 2以下.The inteference index of population control (IIPC) were used to evaluate the interference effects of alcohol extracts from 20 species of non-preferable plants by means of life table approaches of diamondbach moth(DBM). Among them the alcohol extracts from 8 species of the plants,i.e. Artemisia lactiflora Wall., Amaranthus retroflexus L., Rubia cordifolia L., Chromolaena odorata L., Calystegia hederalea Wall., Stephania longa Lour., Cephalanoplos segetum Bge. and Scirpus wallichii Nees. revealed the better results to control the population of DBM than those from other plants. The IIPCs of all the extracts from plants mentioned above on DBM were all less than 0.2.

关 键 词：非嗜食植物 实验种群 小菜蛾 干扰作用控制指数 次生化合物 白花 反枝苋 飞机草 抽提物 茜草 

分 类 号：S436[农业科学—农业昆虫与害虫防治] S433[农业科学—植物保护]