Ana Karen Ramírez-Sánchez, J. C. Rodríguez-Maciel, Á. Lagunes-Tejeda, Néstor Bautista-Martínez;, Manuel Alejandro Tejeda Reyes, Saúl Pardo-Melgarejo
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引用次数: 0
Abstract
Abstract Diaphorina citri Kuwayama (Hemiptera: Liviidae) is the most severe pest of citrus worldwide, and it has a high capacity to develop insecticide resistance. We estimated the intraplot variation of resistance to imidacloprid in adults collected from an orchard (8 ha) of Persian lemon, Citrus latifolia Tan., in Martínez de la Torre, Veracruz, Mexico. We divided the orchard into eight sections of similar size. Adults were sampled from each section to assess their response in the F1. We conducted two field samplings: November 2020 and May 2021. The relative response (RR50) at the median lethal mortality (LC50) level in adults collected in the first sampling varied from 518× to 16,701×. Adults collected from Sections 2 and 5 exhibited the highest LC50 values. In the second sampling, adults with the highest LC50 values were collected from Sections 3, 5, and 6. The range of intraorchard variation at the LC50 level (RR50) ranged from 635× to 6,626×. The RR95 values could be estimated in two sections of the first sampling: 7,421× (Section 7) and 58,958× (Section 8). For the remainder of the intraorchard sections in both samplings, the maximum concentration of imidacloprid that could be prepared was 100,000 mg/L, which caused a level of mortality that reached ≤87.9%. The range of variation at the LC50 among sections (FRR50) was low: 1 to 32.17× in the first sampling and 1 to 10.43× in the second. The resistance detected to imidacloprid is the highest recorded worldwide for D. citri.
摘要柑桔潜蝇(Diaphorina citri Kuwayama)是世界范围内最严重的柑桔害虫,具有很强的抗药性。我们估计了从波斯柠檬(Citrus latifolia Tan。,墨西哥韦拉克鲁斯州的Martínez de la Torre。我们把果园分成八个大小相似的部分。从每个切片中抽取成年人,以评估他们在F1中的反应。我们进行了两次实地采样:2020年11月和2021年5月。在第一次抽样中收集的成年人在中位致死率(LC50)水平下的相对反应(RR50)在518×至16701×之间变化。从第2节和第5节采集的成年人表现出最高的LC50值。在第二次采样中,从第3、5和6节采集LC50值最高的成年人。在LC50水平(RR50)下,前庭内变异的范围为635×至6626×。RR95值可以在第一次采样的两个部分中估计:7421×(第7部分)和58958×(第8部分)。对于两个样本中剩余的口内切片,可以制备的吡虫啉的最大浓度为100000 mg/L,这导致的死亡率水平达到≤87.9%。切片间LC50(FRR50)的变化范围较低:第一次采样为1至32.17倍,第二次采样为为1至10.43倍。检测到的对吡虫啉的耐药性是世界范围内记录的最高的。
期刊介绍:
The Journal of Entomological Science (ISSN 0749-8004) is a peer-reviewed, scholarly journal that is published quarterly (January, April, July, and October) under the auspices of the Georgia Entomological Society in concert with Allen Press (Lawrence, Kansas). Manuscripts deemed acceptable for publication in the Journal report original research with insects and related arthropods or literature reviews offering foundations to innovative directions in entomological research