寄主植物挥发物与粘虫板对林间苹小吉丁引诱效果评价

Evaluation of the Effects of Host Plant Volatiles and Sticky Traps on the Attraction of Agrilus mali Mastumra

【目的】评价植物挥发性物质对苹小吉丁 Agrilus mali Masumura林间引诱效果,为有效地监测苹小吉丁林间发生动态及成虫诱杀为主的绿色防控提供技术支撑。【方法】在野外苹果园内悬挂4种波长粘虫板与5种挥发物组合,评价林间引诱苹小吉丁效果。【结果】 4种颜色粘虫板与5种挥发物组合对苹小吉丁在林间的引诱效果存在显著差异,其中顺-3-己烯醇分别与蛋黄色和浅绿色粘虫板组合对苹小吉丁的引诱效果较强,3 d 最大引诱数量分别达到66.00、63.00头/张,3 d 平均引诱数量分别为24.67、22.48头/张,与其它挥发物相比均有显著差异( P <0.05),雌虫的诱捕数量明显高于雄虫。苹小吉丁引诱数量在一定剂量范围内,随着挥发物剂量的增加呈现降低趋势。【结论】苹小吉丁对蛋黄色粘虫板与浅绿色粘虫板具有较好的趋向性,顺-3-己烯醇对粘虫板具有增效作用。蛋黄色或浅绿色粘虫板与顺-3-己烯醇组合,可作为苹小吉丁林间种群动态监测的手段。

【Objective】 To carry out the evaluation of plant volatile substances on the attraction of Agrilus mali Masumura in the hope of providing technical support for the effective monitoring of the occurrence dynamics in the forest and for the green control technology which is based on adult trapping and killing.【Method】 The experiment was conducted to attract Agrilus mali Masumura by hanging four wavelength sticky traps and five volatiles in the wild apple orchard.【Result】 The results showed that there were significant differences in the attraction effect of 4 kinds of wavelength sticky traps and 5 kinds of volatile compounds on Agrilus mali Masumura in the forest. The combination of (Z)-3-hexenol with egg yellow and light green sticky traps had stronger attraction effect on Agrilus mali Masumura. The maximum attraction amount in 3 days was 66 and 63, respectively, and the average attraction number in 3 days was 24.67 and 22.48, respectively. Compared with other volatiles, there were significant differences ( P <0.05). The number of females which were trapped was significantly higher than that of males. According to the results of volatile dose test, the number of trapped Agrilus mali Masumura showed a decreasing trend with the increase of volatile dose in a certain range.【Conclusion】 It can be seen that Agrilus mali Masumura has a good tendency to egg yellow sticky traps and light green sticky traps, and (Z)-3-hexenol has a synergistic effect on sticky traps. The combination of (Z)-3-hexenol with egg yellow or light green a sticky traps could be used as a means of population dynamics monitoring for Agrilus mali Masumura.