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Position: Home > Articles > Action Mode of volatile oil of Hibiscus trionum against Plutella xylostella Agrochemicals 2009,48 (8) 78-80

野西瓜苗挥发油对小菜蛾的活性作用方式

作  者:
殷丽娜;王丽婷;杨敏丽
单  位:
宁夏大学
关键词:
野西瓜苗;挥发油;小菜蛾;活性作用方式
摘  要:
采用不同的活性测试方法研究了野西瓜苗挥发油对小菜蛾的熏蒸、忌避和抑制生长发育作用。结果表明:野西瓜苗挥发油对小菜蛾3龄幼虫具有较高的的熏蒸和抑制生长活性,熏蒸法处理对小菜蛾3龄幼虫48h的校正死亡率为100%,野西瓜苗挥发油对小菜蛾有较好的忌避作用;挥发油对小菜蛾的生长发育有一定抑制作用,随施药剂量的增加,生长抑制率增大,化蛹率和羽化率降低,处理剂量为50.00g/L时,抑制率为95.3%,化蛹率为24.5%,羽化率仅为9.3%。
译  名:
Action Mode of volatile oil of Hibiscus trionum against Plutella xylostella
作  者:
YIN Li-na,WANG Li-ting,YANG Min-li(Ningxia University,Yinchuan 750021,china)
关键词:
hibiscus trionum;essential oil;Plutella xylostella;insecticidal action
摘  要:
Fumigation,abstain and inhibition of growth and development of essential oil of hibiscus trionum on 3th instar larvae of Plutella xylostella were determined.The results showed that essential oil possessed high fumigation and inhibition of growth and development effectiveness against 3th instar larvae of hibiscus trionum,the corrected mortality of contacting action was 100%by fumigation method,oil of hibiscus trionum showed quite strong abstain against Plutella xylostella and displayed strong inhibition of growth and development on Plutella xylostella.comparing with the controlled,the treated larvae showed big reduction on body weight,pupation rate,adult emerging rate and relative growth rate.The higher the concentration of the extracts was,the more severe the effect on the pest was.When treated with concentration of 50.00 g/L,growthi?nhibition rate was 95.3%,with pupation rate and adult emerging rate were 24.5 and 9.3%.

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