Resistance of Panonychus citri ( McGregor ) (Acari: Tetranychidae) to pyridaben in China: monitoring and fitness costs
Resistance of Panonychus citri ( McGregor ) (Acari: Tetranychidae) to pyridaben in China: monitoring and fitness costs
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中国柑橘全爪螨（Acari：Tetranychidae）对哒螨灵的抗性：监测和适应成本
DOI：
10.1002/ps.7270
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发表时间：
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影响因子：
4.1
通讯作者：
Wei Dou
中科院分区：
文献类型：
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作者：
Deng Pan;Meng‐Hao Xia;Qiu‐Juan Luo;Xun‐Yan Liu;Chuan‐Zhen Li;Guo‐Rui Yuan;Jin‐Jun Wang;Wei Dou
柑橘全爪螨是柑橘的主要害虫。生活史短，繁殖潜力大。柑橘类，加上大量使用杀螨剂，导致对杀螨剂的高度抗药性，对全球抗药性管理方案构成威胁。在此，建立抗性监测以确定tenP的哒螨灵抗性状态。2014年至2021年，中国的柑橘种群使用浸叶法。以敏感品系（Lab_S）、抗性品系（Pyr_R）、分离的抗性品系（Pyr_Rs）和分离的敏感品系（Pyr_Control）4个品系为研究对象，采用年龄阶段、雌雄生命表法对该品系的生活史特征进行评价。柑橘种群对哒螨灵产生了高度抗性。玉溪、安岳、南宁和赣州人群的耐药性水平超过Lab_S菌株的1000倍。与Pyr_Control相比，在相同条件下，Pyr_Rs的发育期和繁殖力这两个关键的适合度成本指标均表现出显著差异。与Pyr_Control品系相比，抗性品系的内禀增长率、净繁殖率和毛繁殖率均较低。Pyr_Rs菌株的相对适合度为0.934，低于Pyr_Control菌株。此外，Pyr_R品系的生活史特征和种群参数与Lab_S品系相比也存在显著差异。居群间存在区域差异。大量的健身成本与哒螨灵抗性有关。这项研究提供了潜在的影响，制定战略的抗性管理在P。柑橘。© 2022化学工业学会。
BackgroundPanonychus citriis a major citrus pest worldwide. The short life cycle and high reproductive potential ofP. citri, combined with heavy acaricide use, have led to high levels of resistance to acaricides, posing a threat to global resistance management programs. Here, resistance monitoring was established to determine the pyridaben resistance status of tenP. citripopulations in China from 2014 to 2021 using a leaf‐dipping assay. Four characterized strains—the susceptible strain (Lab_S), the resistant strain (Pyr_R), as well as the segregated resistant strain (Pyr_Rs) and the segregated susceptible strain (Pyr_Control) derived from the crossing of the Lab_S and Pyr_R strains, were used to evaluate the life‐history characteristics using age‐stage, two‐sex life tables.ResultsMostP. citripopulations developed high resistance to pyridaben. Resistance levels exceeded 1000‐fold in Yuxi, Anyue, Nanning, and Ganzhou populations compared with the Lab_S strain. Compared with Pyr_Control, two key fitness cost criteria, developmental period and fecundity, showed significant differences in Pyr_Rs under consistent conditions. The intrinsic rate of increase, net reproductive rate and gross reproductive rate were lower in the resistant strain compared with the Pyr_Control strain. The Pyr_Rs strain had a lower relative fitness of 0.934 compared with the Pyr_Control. Moreover, the life‐history traits and population parameters of the Pyr_R strain also showed significant differences compared with the Lab_S strain.ConclusionThe resistance levels to pyridaben varied greatly among the differentP. citripopulations and showed regional differences. Substantial fitness costs are associated with pyridaben resistance. This study provides potential implications for developing strategies for resistance management inP. citri. © 2022 Society of Chemical Industry.