Fenvalerate resistance status in Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) from Punjab, India

被引：5
作者：
Jyoti [1 ]
Nandi A. [1 ]
Singh H. [1 ]
Singh N.K. [1 ]
Rath S.S. [2 ]
机构：
[1] Department of Veterinary Parasitology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana
[2] ADRC, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana
来源：
Journal of Parasitic Diseases | 2016年 / 40卷 / 3期
关键词：
Acaricide resistance; Fenvalerate; LPT; Punjab; Rhipicephalus (Boophilus) microplus;
D O I：
10.1007/s12639-014-0562-z
中图分类号：
学科分类号：
摘要：
Larval packet test was used for evaluating the resistance levels in Rhipicephalus (Boophilus) microplus collected from different districts of central plain zone of Punjab state, India against fenvalerate. The regression graphs of probit mortality of larvae plotted against log values of progressively increasing concentrations of fenvalerate were utilized for the estimation of lethal concentration for 50 % (LC50) and 95 % (LC95) values against various field isolates of R. (B.) microplus. The slope of mortality (95 % confidence levels) varied from 0.730 ± 0.097 (0.419–1.043) to 1.455 ± 0.281 (0.558–2.352) and the value of R2 varied from 0.881 to 0.997. From the regression equation the values of LC50 and LC95 were recorded in range of 184.39–1,338.01 and 3,253.33–112,706.26 ppm, respectively. Among the various tick isolates resistance factors in range of 1.56–54.34 were determined and all field isolates studied were found resistant against fenvalerate. Two field isolates (Jalandhar and Ludhiana) showed level I resistance; three (Patiala, Fatehgarh Sahib and Amritsar) showed level II and Kapurthala isolate showed level IV resistance. The data generated on fenvalerate resistant status will help in judicious use of the drug and formulation of effective tick control strategy for the region. © 2014, Indian Society for Parasitology.
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页码：694 / 698
页数：4
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