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研究了植物挥发性有机化合物α-蒎烯对重要储粮害虫杂拟谷盗成虫的控制作用。结果表明,α-蒎烯对杂拟谷盗成虫具有较强的驱避、触杀和熏蒸作用。其驱避作用随着处理时间延长和处理剂量的增加而增强,在α-蒎烯与乙醇按体积比1.6∶1处理剂量下处理72 h后驱避率达到90.91%,驱避活性达到Ⅴ级。其触杀作用随着处理时间延长和处理浓度增加而显著增强,α-蒎烯在3.00μL/cm2处理浓度下处理48 h后触杀作用校正死亡率即达到100%。α-蒎烯在10、20、40、80μL/L处理浓度的熏蒸作用平均校正死亡率分别达到94.96%、99.16%、100%和100%。
The control effect of α-pinene, a volatile organic compound, on adult grain-stored pests, The results showed that α-pinene had strong repellent, contact killing and fumigating effects on the adults of Trifolium pratense. The repellent effect increased with the prolongation of treatment time and the treatment dose. The repellent rate reached 90.91% at 72 h after treatment with α-pinene and ethanol at the volume ratio of 1.6:1, and the repellent activity reached Ⅴ level . The contact effect of α-pinene significantly increased with the prolongation of treatment time and the increase of treatment concentration. The contact-killing mortality of α-pinene reached 100% after treated with 3.00 μL / cm2 for 48 h. The average corrected mortality of α-pinene at the concentrations of 10, 20, 40 and 80 μL / L was 94.96%, 99.16%, 100% and 100% respectively.