Susceptibility of Varroa destructor (Acari: Varroidae) to synthetic acaricides in Uruguay: Varroa mites' potential to develop acaricide resistance

被引:45
作者
Daniel Maggi, Matias [1 ,2 ]
Roberto Ruffinengo, Sergio [3 ]
Mendoza, Yamandu [4 ]
Ojeda, Pilar [4 ]
Ramallo, Gustavo [4 ]
Floris, Iganazio [5 ]
Javier Eguaras, Martin [1 ,2 ]
机构
[1] Natl Sci & Tech Res Council, CONICET, RA-1917 Buenos Aires, DF, Argentina
[2] Univ Nacl Mar del Plata, Arthropods Lab, Sch Exact & Nat Sci, RA-7600 Mar Del Plata, Buenos Aires, Argentina
[3] Univ Nacl Mar del Plata, Sch Agr Sci, RA-7600 Mar Del Plata, Buenos Aires, Argentina
[4] INIA La Estanzuela, Colonia Dept, Colonia, Uruguay
[5] Univ Sassari, Dipartimento Protez Piante, Sez Entomol Agr, I-07100 Sassari, Italy
关键词
JACOBSONI ACARI; FLUVALINATE RESISTANCE; AMITRAZ; PYRETHROIDS; COUMAPHOS; POPULATIONS; FLUMETHRIN; OUD;
D O I
10.1007/s00436-010-2122-5
中图分类号
R38 [医学寄生虫学]; Q [生物科学];
学科分类号
07 ; 0710 ; 09 ; 100103 ;
摘要
The purpose of this study was to estimate the acaricide susceptibility of Varroa destructor populations from Uruguay, which had never been exposed to synthetic acaricides. It was also to determine whether acaricide resistance to coumaphos occurred in apiaries in which acaricide rotation had been applied. Bioassays with acaricides against mite populations that had never been exposed to synthetic acaricides were performed, also against mite populations in which control failures with coumaphos had been reported. Additionally, coumaphos' effectiveness in honeybee colonies was experimentally tested. The lethal concentration that kills 50% of the exposed animals (LC50) for susceptible mite populations amounted to 0.15 mu g/Petri dish for coumaphos and to less than 0.3 mu g/Petri dish for the other acaricides. Coumaphos LC50 was above 40 mu g/Petri dish for resistant mites. The effectiveness of coumaphos in honeybee colonies parasitized by V. destructor ranged from 17.6% to 93.9%. LC50 for mite populations susceptible to the most commonly applied miticides was determined, and the first case of coumaphos resistance recorded in Uruguay was established.
引用
收藏
页码:815 / 821
页数:7
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