薇甘菊挥发油对枣尺蠖的室内活性分析

Study on the Bioactivity of Volatile Oil From Mikania micrantha Against Sucra jujuba Chu

测定了薇甘菊挥发油对枣尺蠖的生物活性。结果表明不同浓度处理对枣尺蠖幼虫死亡率的影响达极显著水平。薇甘菊挥发油处理7d的半致死质量相对浓度C50为挥发油原提液的49%。3个浓度处理(1×、5×、10×)的半致死中时分别为51、91、115h。结论:薇甘菊挥发油对枣尺蠖具有一定的生物活性和防控潜力。

Bioactivity of volatile oil from Mikania micrantha against mixed instar of Sucra jujuba Chu were reported. Results showed that the death rate of Sucra jujuba Chu treated with different volatile oil of the extract were differert significantly. Volatile oil of Mikania micrantha caused the corrected mortalities were 49% a- gainst Sucra jujuba Chu by dipping bioassay after treatment 7d. The LTs0 for the 2nd larvae were 51, 91 and 115h, with different concentration treatments（ 1× ,5× ,10×） respectively. It is so concluded that the volatile oil of Mikania micrantha have good bioactivity and control potential on the Sucra jujuba Chu.