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应用超临界CO2萃取技术提取得到的花椒挥发油对玉米象、赤拟谷盗进行了杀虫活性测定.结果表明,花椒挥发油对玉米象、赤拟谷盗具有较强的驱虫、杀虫活性.在7d内忌避率始终在50%以上;在椒油点滴剂量为0 04μL时,玉米象和赤拟谷盗的死亡率分别为47%和40%;当玉米象的熏杀剂量为1mL·L-1时,24h内虫全部死亡,当对赤拟谷盗的熏杀剂量为1 2mL·L-1时,6h内虫全部死亡.
The insecticidal activity of the volatile oil of Zanthoxylum Bungeanum extracted by supercritical CO2 extraction was tested on the corn and Xiang Piobu.The results showed that the volatile oil of Zanthoxylum bungeanum had strong anthelminthicidal and insecticidal activity on the corn and the red mulberry. Within 7d, the repellent rate was always above 50%. The mortality rates of corn and red tarragon were 47% and 40% respectively when the dose of pepper oil was 0 04μL. When the corn lethal dose was 1mL·L -1, all the insects died within 24 hours. When the dose of fumigant against pirimicarb was 12 mL · L-1, all insects within 6 h died.