作 者：
徐世才;李延清;王延峰;苑彩霞;封杰;廉振民
单 位：
陕西省区域生物资源保育与利用工程技术研究中心;延安大学生命科学学院
摘 要：
在自然变温条件下,研究了胡椒提取物对小菜蛾生物活性的影响。结果表明,胡椒提取物对小菜蛾3龄幼虫有显著的拒食作用和生长抑制作用,其非选择性拒食率和选择性拒食率分别为82.46%和85.29%,24 h和48 h的生长抑制率分别为86.60%和98.55%;胡椒提取物对小菜蛾成虫产卵也有明显抑制作用和很强的忌避作用,产卵量下降近60%。
译 名：
Effect of the Crude Extract from Pepper on the Bio-activity of Plutella xylostella
作 者：
XU Shi-cai1,2,LI Yan-qing2,WANG Yan-feng2,YUAN Cai-xia2,FENG Jie2 and LIAN Zhen-min2 (1.Shaanxi Engineering & Technological Research Center for Conservation & Utilization of Regional Biological Resources, Xi′an 710000,China;2.College of Life Science,Yan'an University,Yan′an 716000,China)
关键词：
Extracts of pepper;Plutella xylostella;Biological activity
摘 要：
This paper deals with the effect of the crude extract from pepper on the Bio-activity of Plutella xylostella under the natural temperature.The results showed that the extracts from pepper demonstrated most potent anti-feeding efficacy and inhibition to growth and development against 3rd larvae of Plutella xylostella,the no choice anti-feeding rate and the choice anti-feeding rate were 82.46 % and 85.29 % respectively,24 h and 48 h of inhibitory rate were 86.60% and 98.55% respectively.It also has strong deterrent and inhibition to oviposition of adult,and the oviposition amount of adult decreased 60%.
