Yu Jin-Jia, Ranabhat Sabita, Wang Changlu
Department of Entomology, Rutgers-The State University of New Jersey, 96 Lipman Dr., New Brunswick, NJ 08901, USA.
Insects. 2023 Jan 27;14(2):133. doi: 10.3390/insects14020133.
Insecticide resistance is one of the factors contributing to the resurgence of the common bed bug, L. This study aimed to profile the resistance levels of field-collected populations to two neonicotinoids and one pyrethroid insecticide and the performance of selected insecticide sprays and an inorganic dust. The susceptibility of 13 field-collected populations from the United States to acetamiprid, imidacloprid, and deltamethrin was assessed by topical application using a discriminating dose (10 × LD of the respective chemical against a laboratory strain). The RR based on KT values for acetamiprid and imidacloprid ranged from 1.0-4.7 except for the Linden 2019 population which had RR of ≥ 76.9. Seven populations had RR values of > 160 for deltamethrin. The performance of three insecticide mixture sprays and an inorganic dust were evaluated against three field populations. The performance ratio of Transport GHP (acetamiprid + bifenthrin), Temprid SC (imidacloprid + β-cyfluthrin), and Tandem (thiamethoxam + λ-cyhalothrin) based on LC were 900-2017, 55-129, and 100-196, respectively. Five minute exposure to CimeXa (92.1% amorphous silica) caused > 95% mortality to all populations at 72 h post-treatment.
杀虫剂抗性是导致常见臭虫（温带臭虫）再度猖獗的因素之一。本研究旨在剖析野外采集种群对两种新烟碱类杀虫剂和一种拟除虫菊酯类杀虫剂的抗性水平，以及所选杀虫剂喷雾和一种无机粉尘的防治效果。通过使用鉴别剂量（相对于实验室品系的相应化学物质的10倍致死剂量）进行局部施药，评估了来自美国的13个野外采集种群对啶虫脒、吡虫啉和溴氰菊酯的敏感性。除了2019年林登种群的抗性比率≥76.9外，啶虫脒和吡虫啉基于击倒时间值的抗性比率范围为1.0 - 4.7。七个种群对溴氰菊酯的抗性比率值>160。针对三个野外种群评估了三种杀虫剂混合喷雾和一种无机粉尘的防治效果。基于半数致死浓度的Transport GHP（啶虫脒 + 联苯菊酯）、Temprid SC（吡虫啉 + β - 氯氟氰菊酯）和Tandem（噻虫嗪 + λ - 氯氟氰菊酯）的防治效果比率分别为900 - 2017、55 - 129和100 - 196。暴露于CimeXa（92.1%无定形二氧化硅）五分钟后，在处理后72小时对所有种群造成了>95%的死亡率。
