›› 2013, Vol. 56 ›› Issue (12): 1391-1396.

• RESEARCH PAPERS • Previous Articles     Next Articles

Biological activities of wintergreen oil and cinnamon oil against Culex pipiens pallens (Diptera: Culicidae)

MA Wei-Bin1, FENG Jun-Tao1,2, MA Zhi-Qing1,2, JIANG Zhi-Li1,2, ZHANG Xing1,2,*   

  1. (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:2013-12-20 Published:2013-12-20

Abstract: In order to evaluate the biological activities of wintergreen oil and cinnamon oil against mosquitoes, repellent and fumigant activities of wintergreen oil and cinnamon oil against Culex pipiens pallens were investigated via immersion method, “Y”-tube olfactometer and fumigation, respectively. The results showed that cinnamon oil and wintergreen oil had high larvicidal activity against C. pipiens pallens larvae, with the LC50 values (24 h) of 71.87 mg/L and 102.83 mg/L, respectively. Wintergreen oil and cinnamon oil exhibited good repellent activity against C. pipiens pallens adults (percent repellency>80%) at the dosage of 0.5 μL within 20 min. Wintergreen oil had excellent knockdown activity against C. pipiens pallens adults at the dose of 12 μL/L with the KT50 value of 3.97 min, and cinnamon oil exhibited high fumigation activity against C. pipiens pallens adults with the LC50 value of 0.31 μL/L after 5 h exposure. The mixture (1∶1, v∶v) of wintergreen oil and cinnamon oil performed both rapid knockdown and high lethal toxicity against C. pipiens pallens adults, suggesting that they have a synergistic effect. Wintergreen oil and cinnamon oil showed high larcicidal activity against C. pipiens pallens larvae and good repellent and fumigation activities against female C. pipiens pallens adults, suggesting that wintergreen oil and cinnamon oil could be exploited as potential botanical mosquito control agents.

Key words: Culex pipiens pallens, plant essential oil, wintergreen oil, cinnamon oil, larvicidal activity, repellent activity, fumigation activity