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[目的]研究中草药提取液对黄瓜苗期杀根结线虫的活性。[方法]利用植物水培技术,结合生长条件易控制、根系生长过程易连续观察的特点,应用5种具有较强室内触杀根结线虫活性的植物提取液及其与阿维菌素的复配液,对黄瓜苗期水培根系杀线活性进行系统研究。[结果]胡黄连和石榴皮提取液可以在不影响水培黄瓜苗期植株生长的前提下表现出对根结线虫良好的活体植株根系寄生防治和杀灭活性,且达到了与阿维菌素相近的作用水平;而狗脊、木香和蛇床子提取液对黄瓜的生长表现出不同程度的抑制作用,其对根结线虫的防治效用和杀灭活性也较弱。[结论]触杀效果和杀线活性成分能否被植物吸收利用共同制约着具有杀线活性中草药提取液的开发应用。
[Objective] The research aimed to study the activity of Chinese herbal extract on root-knot nematode in cucumber seedling. [Method] With the characteristics of plant hydroponic culture, easy to control the growth conditions and easy observation of the growth of root system, five plant extracts with strong activity of in vitro contact root - knot nematode and their combination with abamectin Liquid, on cucumber seedling water kill culture line activity system research. [Result] The extracts from Hu Huanglian and Pomegranate Peel had the ability to prevent and control the root parasitism of live root-knot nematode without affecting the plant growth in hydroponic cucumber seedlings, The results showed that the extracts of Gynura divaricata, Cinnamon and Fructus Cnidii had different degrees of inhibition on the growth of cucumber, and their control effects and killing activity on root knot nematode were also weaker. [Conclusion] Whether the contact killing activity and the active ingredients of the active ingredients of line kill can be absorbed and used by the plants together constrain the development and application of the Chinese traditional medicine extract with the kill line activity.