Abstract：Objective To analyze the resistance development of Aedes albopictus to commonly used insecticides in Wuxi, Jiangsu province, China from 2015 to 2019, and to provide scientific evidence for rational use of insecticides. Methods During 2015 to 2019, Ae. albopictus was collected by ovitrap method from the residential areas or parks of eastern, western, southern, northern, and central regions of Wuxi, and was reared to F1 generation in the laboratory. The larval dipping method was used to test the resistance level. Results The resistance ratio (RR) of Ae. albopictus larvae to beta-cypermethrin was 101.12 in 2015, 106.90 in 2017, 54.66 in 2018, and 26.12 in 2019. The RR to deltamethrin was 46.48 in 2015, 63.75 in 2017, 22.39 in 2018, and 13.86 in 2019. The RR to permethrin was 153.74 in 2015, 66.32 in 2017, 63.79 in 2018, and 37.53 in 2019. The resistance to beta-cypermethrin and permethrin was high from 2015 to 2018, but declined to a moderate level in 2019. The resistance to deltamethrin was high from 2015 to 2017, but declined to a moderate level from 2018 to 2019. The RR to temephos was 5.98 in 2015, 7.42 in 2017, 10.00 in 2018, and 2.35 in 2019. The RR to fenobucarb was 21.14 in 2018 and 5.64 in 2019. The resistance of the larvae to temephos changed from a low to moderate level then to a sensitive level. The resistance to fenobucarb was low or moderate. ConclusionAe. albopictus in Wuxi shows moderate-to-high resistance to beta-cypermethrin, deltamethrin, and permethrin, and low-to-moderate resistance to temephos and fenobucarb. The resistance generally showed a declining trend in 2019. Rational use of insecticides should be advocated to delay the development of insecticide resistance. Avoid heavy usage of high-resistance insecticides and adopt the strategy of alternation, rotation, or mixing of insecticides.
邹亚明, 兰策介, 刘蕴华, 游颖琦, 朱丁. 江苏省无锡市2015－2019年白纹伊蚊对5种常用卫生杀虫剂的抗药性发展趋势[J]. 中国媒介生物学及控制杂志, 2021, 32(1): 74-77.
ZOU Ya-ming, LAN Ce-jie, LIU Yun-hua, YOU Ying-qi, ZHU Ding. Resistance development trend of Aedes albopictus to five commonly used insecticides in Wuxi, Jiangsu province, China, 2015-2019. Chines Journal of Vector Biology and Control, 2021, 32(1): 74-77.
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2021, Vol. 32 
