金腰箭提取物对小菜蛾的生物活性作用研究

Study of Biological Activity to Plutella xylostella Using Substance of Synedrellanodiflora(Linn.)Gaertn

通过用6种极性由强到弱的不同溶剂金腰箭提取物对小菜蛾进行了生物活性测定。结果表明:金腰箭各种不同溶剂提取物在0.01 gDW/mL浓度下对小菜蛾均有不同程度的拒食和忌避作用,拒食率和产卵产卵忌避率高达90.76%和73.41%,其中乙醇提取物和氯仿提取物对小菜蛾试验种群控制作用较强。

Using 6 different Polarity extract substance of Synedrellanodi.flora（Linn. ）Gaertn from strong to weak, biological activity about Plutella xylostella （L.） were mensurated. The results showed that Synedrellanodiflora （Linn.） Gaertn extracts substance haved strong antifeeding activity and oviposition against the larvae of Plutella xylostella （L.）, which it＇s rate can be at the top of 90. 76 % and 73.41%.