香芹酮和薄荷醇手性异构体对淡色库蚊熏蒸及驱避活性

doi:10.16380/j.kcxb.2016.07.005

昆虫学报 ›› 2016, Vol. 59 ›› Issue (7): 732-738.doi: 10.16380/j.kcxb.2016.07.005

香芹酮和薄荷醇手性异构体对淡色库蚊熏蒸及驱避活性

付磊磊¹, 李双阳¹, 何军^1,2, 马志卿^1，2，*, 张兴^1,2

（1. 西北农林科技大学无公害农药研究服务中心, 陕西杨凌 712100; 2. 陕西省生物农药工程技术研究中心, 陕西杨凌 712100)

出版日期:2016-07-20 发布日期:2016-07-20

Fumigation and repellent activities of the optical isomers of carvone and menthol against Culex pipiens pallens (Diptera: Culicidae)

FU Lei-Lei¹, LI Shuang-Yang¹, HE Jun ^1,2, MA Zhi-Qing^1,2,*, ZHANG Xing^1,2

(1. Research & Development Centre of Biorational Pesticides, Northwest A&F University, Yangling, Shaanxi 712100, China; 2. Research Center of Biopesticide Engineering & Technology, Shaanxi Province, Yangling, Shaanxi 712100, China)

Online:2016-07-20 Published:2016-07-20

摘要/Abstract

摘要： 【目的】比较香芹酮和薄荷醇各手性异构体对淡色库蚊Culex pipiens pallens 成蚊的熏蒸及驱避活性，为其应用提供理论依据。【方法】以3日龄淡色库蚊雌成蚊为供试昆虫，采用三角瓶熏蒸法比较测定香芹酮和薄荷醇的5种手性异构体的击倒与熏蒸致死活性；用Y-型嗅觉仪法比较测定驱避作用；将活性较好单体制成电热蚊香片，用方箱法进一步评价药效。【结果】5种异构体对淡色库蚊均具有一定的击倒和致死作用，其中L-香芹酮的击倒速度最快，KT₅₀为9.75 min；D-香芹酮的致死作用最强，LC₅₀为0.26 μL/L。L-香芹酮和D-香芹酮对淡色库蚊均具较好的驱避作用，在0.5 μL剂量下，处理30 min后的驱避率仍达100%。方箱法实验表明，以200 μL 的L-香芹酮和D-香芹酮为有效成分的电热蚊香片加热1 h后，对淡色库蚊雌成蚊的KT₅₀分别为13.70和17.90 min。【结论】香芹酮对淡色库蚊雌成蚊的熏杀活性优于薄荷醇，且不同异构体的活性存在显著差异，L-香芹酮具备被开发为植物源卫生害虫防控剂的潜力。

关键词: 淡色库蚊, 香芹酮, 薄荷醇, 手性异构体, 熏蒸活性, 驱避活性

Abstract: 【Aim】 In this study, the fumigation and repellent activities of the optical isomers of carvone and menthol were tested against adult Culex pipiens pallens to evaluate their differences in insecticidal activity. It would provide guidance for the utilization of carvone and menthol. 【Methods】 The fumigation and knock-down activities of the five optical isomers of carvone and menthol against 3-day-old female adults of C. pipiens pallens were detected with the Erlenmeyer flask method, Y-tube olfactometer was used to determine the repellent activity, and the single compound with better activity was developed into vaporizing mat for further efficacy assessment. 【Results】 All five isomers had a certain degree of knock-down and fumigation activities against female adults of C. pipiens pallens. Compared with other isomers, L-carvone possessed the highest knock-down activity against female adults of C. pipiens pallens, with the KT₅₀ value of 9.75 min. D-carvone had the highest lethal effect on female adults of C. pipiens pallens, with the LC₅₀ value of 0.26 μL/L. Both L-carvone and D-carvone showed strong repellent activity against female adults of C. pipiens pallens, with the repellent rate of 100% lasting for 30 min at the dose of 0.5 μL. The vaporizing mat with L-carvone as the active ingredient had stronger activity against C. pipiens pallens than that with D-carvone as the active ingredient after heating for 1 h, and their KT₅₀values were 13.70 and 17.90 min, respectively. 【Conclusion】 Carvone has stronger fumigation activity against female adults of C. pipiens pallens than menthol. The two optical isomers of carvone show a significant difference in fumigation and knock-down toxicities. L-carvone possesses a potential of being developed as a botanical pesticide for the control of C. pipiens pallens.

Key words: Culex pipiens pallens, carvone, menthol, optical isomers, fumigation activity, repellent activity

付磊磊, 李双阳, 何军, 马志卿, 张兴. 香芹酮和薄荷醇手性异构体对淡色库蚊熏蒸及驱避活性[J]. 昆虫学报, 2016, 59(7): 732-738.

FU Lei-Lei, LI Shuang-Yang, HE Jun, MA Zhi-Qing, ZHANG XING . Fumigation and repellent activities of the optical isomers of carvone and menthol against Culex pipiens pallens (Diptera: Culicidae)[J]. Acta Entomologica Sinica, 2016, 59(7): 732-738.

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http://www.insect.org.cn/CN/Y2016/V59/I7/732

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香芹酮和薄荷醇手性异构体对淡色库蚊熏蒸及驱避活性

Fumigation and repellent activities of the optical isomers of carvone and menthol against Culex pipiens pallens (Diptera: Culicidae)

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