水稻挥发物对稻虱缨小蜂的引诱效果研究
Attractiveness of rice plant volatiles to Anagrus nilaparvatae Pang et Wang
李 婷；王成盼；蒋娜娜； 尉吉乾；莫建初
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DOI：10.7679/j.issn.2095-1353.2018.047
作者单位：浙江大学昆虫科学研究所，农业部农业昆虫学重点实验室，杭州 310058；浙江省杭州市植保土肥总站，杭州 310020
中文关键词：水稻挥发物，稻虱缨小蜂，Y型嗅觉仪，行为反应，混配比例
英文关键词： rice plant volatiles, Anagrus nilaparvatae, Y-tube olfactometer, behavior response, mixing ratio
中文摘要：
【目的】 通过室内测定稻虱缨小蜂Anagrus nilaparvatae对水稻单一挥发物和混合挥发物的行为反应，研究水稻挥发物对稻虱缨小蜂的引诱效果，为进一步探索信息化合物在害虫防治中的应用提供理论依据。【方法】 利用Y型嗅觉仪测定醇类、酮类、酚类、醛类、烯类和吲哚类等12种水稻单一挥发物对稻虱缨小蜂的引诱效果，利用引诱效果显著的单一化合物进行特定浓度的混配，进而测定稻虱缨小蜂对混合水稻挥发物的行为反应。【结果】 单一挥发物中，香叶基丙酮（0.1 mg/L）、2-庚醇（1 mg/L）、正壬醇（10 mg/L）和β-石竹烯（0.01 mg/L）对稻虱缨小蜂有显著的引诱效果；对具有引诱效果的单一挥发物进行混配发现，No.1，No.3，No.4和No.10这4种组合的混合物对稻虱缨小蜂的行为有显著的影响。 【结论】 水稻挥发物能够影响稻虱缨小蜂的行为反应，但其引诱效果受挥发物种类、浓度和混配比例等多种因素的影响。
英文摘要：
[Objectives] To evaluate the attractiveness of single, and mixtures of different, rice plant volatiles to Anagrus nilaparvatae and thereby provide a theoretical basis for further exploring the application of semiochemical-based attractants as part of the integrated management of this pest. [Methods] The behavioral responses of A. nilaparvatae to 12 rice plant volatiles, including alcohols, ketones, phenols, aldehydes, olefins and indoles, were tested in a Y-tube olfactometer. Several mixtures of behaviorally-active compounds were also tested. [Results] A. nilaparvatae was significantly attracted by 0.1 mg/L of geranyl acetone, 1 mg/L of 2-heptanol, 10 mg/L of 1-nonanol and 0.01 mg/L of β-caryophyllene. Mixture No.1, No.3, No.4 and No.10 were also significantly attractive to A. nilaparvatae. [Conclusion] Rice plant volatiles can significantly affect the behavior of A. nilaparvatae, and their attractiveness varies with compound, concentration and the ratio at which different volatiles are mixed.