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为研究外源植物挥发性物质对落叶松球果花蝇 ( Strobilomyia spp.)对寄主定位的干扰作用 ,在哈尔滨市和大兴安岭加格达奇兴安落叶松 ( Larix gmelinii)种子园 ,用松节油、樟脑、丁香油进行了室内生测和林间喷施试验。在室内 ,球果花蝇对 1 %松节油的反应率为 94.2 3% ,与 1 %丁香油、3%松节油、2 %丁香油相比差异显著 ;对 1 %樟脑的反应率为 87.92 %。球果花蝇对 2 %丁香油的反应率最低 ,仅为 1 6.30 %。在室内及林间 ,1 %松节油及 1 %樟脑对球果花蝇都表现为驱避作用。 1 %松节油及其对照对球果花蝇的驱避效果最好 ,平均每果虫数较清水对照的 3.5 1分别降低了 2 .85和 2 .66,使球果被害率降低了 5 7.0 %和46.2 % ,种子被害率分别降低了 2 4 .7%和 2 7.7%。其次是 1 %樟脑及其对照 ,每果虫数较清水对照降低了1 .83和 1 .44个 ,球果被害率分别降低了 9.0 %和 30 .7% ,种子被害率分别下降了 1 2 .2 %和 2 6.9%。 1 %丁香油对花蝇在室内表现为诱引作用 ,在林间表现为驱避作用。在喷施 3种挥发性物质及其对照后 ,各个处理的球果挥发性物质主要组分的总量都较清水对照增加 ,各处理的 α-蒎烯相对含量较清水对照大幅度降低 ,降低幅度在 1 3.5 6%～ 2 4 .83%之间 ;各处理的β-罗勒烯都有不同程度的增加。β-蒎?
In order to study the effect of exogenous plant volatiles on the host location of Strobilomyia spp., The Larix gmelinii seed orchard in Harbin and the Greater Xing’an Mountains were treated with turpentine, camphor , Clove oil indoor test and forest spray test. In laboratory, the response rate of 1% turpentine to Drosophila melanogaster was 94.2%, which was significantly different from that of 1% clove oil, 3% turpentine oil and 2% clove oil. The response rate to 1% camphor was 87.92%. The response rate of fruit fly to 2% clove oil was the lowest, only 1.60%. In indoor and forest, 1% turpentine and 1% camphor showed repellent effects on the fruit flies. 1% turpentine and its control repelled fruit fly flies best, with an average of 2.85 and 2.66 drops per insect per 3.51 compared with the control, resulting in a reduction of cones damage by 5 7.0% And 46.2% respectively, while the rate of seed damage decreased by 24.7% and 27.7% respectively. Followed by 1% camphor and its control. The number of insects per insect dropped 1.83 and 1.44 compared with the control. The damage rate of cones decreased by 9.0% and 30.7% respectively, and the seed damage rate decreased by 12% .2% and 2 6.9%. 1% clove oil on the flies in the indoor performance of the induction, in the forest performance as a repellent effect. After spraying three kinds of volatile substances and their control, the total amount of the main components of the volatile substances in the cones increased compared with the control. The relative content of α-pinene in each treatment decreased significantly and decreased The amplitude ranged from 1 3.56% to 2 4 .83%. The β-Ocimesene treatments increased with different degrees. β-pinene?