Objective To investigate the effective protection time against Aedes albopictus of different concentrations of new mosquito repellent solution dissolved by different concentrations of ethanol, and to determine a suitable ethanol concentration for repellent formulation with an appropriate repellent concentration. Methods According to "Laboratory efficacy test methods and criterions of public health insecticides for pesticide registration-Part 9:Repellent" (GB/T 13917.9-2009), the stock solution of the new mosquito repellent was diluted to gradient concentrations separately with 75% ethanol (15%, 10%, and 8% repellent solutions) and 35% ethanol (8% repellent solution). Results The effective protection time of 8% repellent was 4.63 h when it was prepared with 75% ethanol, and 3.74 h with 35% ethanol. With 75% ethanol as the solvent, the effective protection time was prolonged with the increase of the effective concentration of the new mosquito repellent formulation, being 4.63 h, 5.42 h, and 6.10 h for 8% repellent, 10% repellent, and 15% repellent, respectively. Conclusion Seventy-five percent ethanol is a suitable solvent for the stock solution of the new mosquito repellent, and the repellent effect against Ae. albopictus is good at an effective concentration of 15%.
GUO Yu-hong, XIU Peng-cheng, MA Xin-ran, WANG Xue-shuang, ZHAO Chun-chun, ZHAO Ning, LIU Xiao-bo, WANG Jun, LIU Qi-yong
. Repellent effects of different concentrations of new mosquito repellent against Aedes albopictus[J]. Chinese Journal of Vector Biology and Control, 2020
, 31(5)
: 552
-554
.
DOI: 10.11853/j.issn.1003.8280.2020.05.010
[1] 任夫健. 高效安全的广谱性驱避剂DETA[J]. 农药,2001,40(9):21-22. DOI:10.3969/j.issn.1006-0413.2001.09.011. Ren FJ. DETA the Efficient and safe wide spectrum repellent[J]. Pesticides,2001,40(9):21-22. DOI:10.3969/j.issn.1006-0413.2001.09.011.
[2] 陶波,张大伟. 蚊虫驱避剂的研究进展[J]. 东北农业大学学报,2014,45(2):123-128. DOI:10.3969/j.issn.1005-9369.2014.02.020. Tao B,Zhang DW. Research advance of mosquito repellents[J]. J Northeast Agric Univ,2014,45(2):123-128. DOI:10.3969/j.issn.1005-9369.2014.02.020.
[3] 徐之明,史卫国,董宏彬,等. PD型长效驱避剂现场驱蚊效果观察[J]. 医学动物防制,2000,16(5):228-230. Xu ZM,Shi WG,Dong HB,et al. The field-test observtions on repelling effectiveness of long-acting repellents of PD type[J]. Chin J Pest Control,2000,16(5):228-230.
[4] Qiu HC,Jun HW,Dzimianski M,et al. Reduced transdermal absorption of N,N-diethyl-m-toluamide from a new topical insect repellent formulation[J]. Pharm Dev Technol,1997,2(1):33-42. DOI:10.3109/10837459709022607.
[5] 孟凤霞,郭玉红,张晓越,等. 我国驱蚊花露水及其有效成分[J]. 中国媒介生物学及控制杂志,2012,23(4):277-279. Meng FX,Guo YH,Zhang XY,et al. Mosquito-repellent perfume and its active ingredients in China[J]. Chin J Vector Biol Control,2012,23(4):277-279.
