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首页> 外文期刊>Journal of Medical Entomology >Cross Resistance in S-Methoprene-Resistant Culex quinquefasciatus (Diptera: Culicidae)
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Cross Resistance in S-Methoprene-Resistant Culex quinquefasciatus (Diptera: Culicidae)

机译：耐甲醚抗性Culex Quinquefascastus（Diptera：Culicidae）中的抗抗抗性

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摘要

The juvenile hormone analog S-methoprene is the only synthetic biopesticide that is registered with the United States Environmental Protection Agency to control arthropods of economic importance in public health, livestock, pets, urban, and stored products. The high activity, relative target specificity, and benign environmental profile of S-methoprene have been well documented. While the risk of resistance in mosquitoes to S-methoprene is generally low, there is a lack of information regarding cross resistance in S-methoprene-resistant mosquitoes to other pesticides. In this paper, a population of the southern house mosquito Culex quinquefasciatus Say from southern California acquired low levels of resistance to S-methoprene in the field, where the resistance ratios ranged 7.0- to 8.8-fold as compared with a laboratory reference colony. After 30 generations of laboratory selections by S-methoprene when resistance was elevated to 57.4- to 168.3-fold relative to an unselected population, various levels of cross resistance to other commonly used pesticides were revealed in the selected population. Cross resistance to the microbial mosquito larvicide Lysinibacillus sphaericus (Meyer & Neide) (Bacillales: Bacillaceae) was the most profound, amounting to 77.50- to 220.50-fold. The mechanism and potential management tactics toward cross resistance are discussed to preserve the unique value of this synthetic biopesticide.
机译：保幼激素类似物S-甲戊烯是唯一一种在美国环境保护署注册的合成生物农药，用于控制在公共卫生、牲畜、宠物、城市和储存产品中具有经济重要性的节肢动物。S-甲丙烯的高活性、相对靶向特异性和良好的环境特性已得到充分证明。虽然蚊子对S-甲戊烯的抗药性风险通常较低，但缺乏关于S-甲戊烯抗药性蚊子对其他杀虫剂交叉抗药性的信息。在本文中，来自南加州的南方家蚊致倦库蚊（Culex quinquefasciatus Say）种群在田间获得了低水平的S-甲丙烯抗性，与实验室参考群体相比，抗性比率在7.0到8.8倍之间。在经过30代S-甲丙烯实验室选择后，当抗性相对于未选择的群体提高到57.4到168.3倍时，在选择的群体中发现了对其他常用杀虫剂的不同水平的交叉抗性。对微生物蚊子球孢赖氨酸杆菌（Meyer&Neide）（杆菌：杆菌科）的交叉耐药性最为严重，达到77.50-220.50倍。为了保护这种合成生物农药的独特价值，对交叉抗性的机制和潜在的管理策略进行了讨论。

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