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Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi

Title:		[Effect of several human metabolic compounds for trapping Culex pipiens quinquefasciatus]
Author(s):		Wu H; Dai JQ; Chen DS; Huang H;
Address:		"Guangdong Institute of Applied Biological Resources, Guangdong Public Laboratory of Wild Animal Conservation and Utilization, Guangdong Key Laboratory of Animal Conservation and Resource Utilization, Guangzhou 510260, China"
Journal Title:		Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi
Year:		2019
Volume:		32
Issue:		3
Page Number:		294 - 297
DOI:		10.16250/j.32.1374.2019153
ISSN/ISBN:		1005-6661 (Print) 1005-6661 (Linking)
Abstract:		"OBJECTIVE: To evaluate the indoor effect of six human metabolic compounds for trapping adult Culex pipiens quinquefasciatus. METHODS: The effects of six human metabolic compounds alone (acetic acid, propionic acid, octanoic acid, lactic acid, 1-octene-3-alcohol and urea alone), liquid lactic acid, acetic acid, propionic acid, octanoic acid, lactic acid or 1-octene-3-alcohol in combination with urea at an equal mass ratio, and lactic acid-urea combinations at various mass ratios, for trapping Cx. p. quinquefasciatus were examined using the trapping method, while the dechlorinated water served as a control. RESULTS: The indoor mosquito-trapping efficacy of the six human metabolic compounds was all superior to the dechlorinated water. Acetic acid, propionic acid, octanoic acid, or 1-octene-3-alcohol combined with urea at a mass ratio of 1ratio1 had a comparable mosquito-trapping efficacy with acetic acid, propionic acid, octanoic acid, or 1-octene-3-alcohol alone (all P values > 0.05). The lactic acidurea combination at a mass ratio of 1ratio1 had a significantly higher mean cumulative trapping capacity [(35.60 +/- 8.11) mosquitoes] than lactic acid [(20.80 +/- 8.53) mosquitoes], urea [(17.00 +/- 7.18) mosquitoes] or dechlorinated water alone (7.20 +/- 2.68) (all P values < 0.05). In addition, the lactic acid-urea combinations at mass ratios of 1ratio1, 1ratio2, 1ratio3, 1ratio4 or 1ratio5 all had significantly greater mosquito-trapping efficacies than lactic acid, urea or dechlorinated water alone (all P values < 0.05), and the optimal combination (lactic acid-urea at a 1ratio4 mass ratio) had a mean cumulative trapping capacity of (56.20 +/- 9.88) mosquitoes, which was significantly superior to lactic acid [(17.00 +/- 3.94) mosquitoes], urea [(16.40 +/- 3.78) mosquitoes] or dechlorinated water alone [(7.40 +/- 3.44) mosquitoes] (all P values < 0.05). CONCLUSIONS: The lactic acid-urea combination remarkably increases the indoor trapping capability of Cx. p. quinquefasciatus, and this combination has a weak smell, which is suitable to be used at home and office environments"
Keywords:		Animals *Culex/drug effects Humans *Lactic Acid/pharmacology *Mosquito Control/methods *Pheromones/chemistry/pharmacology *Urea/pharmacology 1-octene-3-alcohol Acetic acid Culex pipiens quinquefasciatus Lactic acid Metabolic compound Octanoic acid Propion;
Notes:		"MedlineWu, H Dai, J Q Chen, D S Huang, H chi 201804010020/Science and Technology Planning Project of Guangzhou City, Guangdong Province/ 201707010471/Science and Technology Planning Project of Guangzhou City, Guangdong Province/ 201607010084/Science and Technology Planning Project of Guangzhou City, Guangdong Province/ 2019GDASYL0302007/Science and Technology Development Program of Guangdong Academy of Sciences/ China 2020/05/30 Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi. 2019 Nov 29; 32(3):294-297. doi: 10.16250/j.32.1374.2019153"