Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia
Bioassay of acaricide resistance on three common cattle ticks was carried out on four farms in Holotta area, Central Ethiopia, using a standardized FAO Acaricide Resistance Test Methods. Larval progeny of Boophilus decoloratus, Rhipicephalus e. evertsi and Amblyomma variegatum were subjected to larv...
| Main Authors: | , , |
|---|---|
| Format: | Journal Article |
| Language: | Inglés |
| Published: |
2001
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/29580 |
| _version_ | 1855533003765186560 |
|---|---|
| author | Jobre, Y. Adamu, G. Zerbini, E. |
| author_browse | Adamu, G. Jobre, Y. Zerbini, E. |
| author_facet | Jobre, Y. Adamu, G. Zerbini, E. |
| author_sort | Jobre, Y. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Bioassay of acaricide resistance on three common cattle ticks was carried out on four farms in Holotta area, Central Ethiopia, using a standardized FAO Acaricide Resistance Test Methods. Larval progeny of Boophilus decoloratus, Rhipicephalus e. evertsi and Amblyomma variegatum were subjected to larval packet test (LPT) employing four different acaricides (Dieldrine, Diazinon, Chlorfenvinphos and Coumaphos) each with five concentration levels. Strains of Boophilus decoloratus, Rhipicephalus e. evertsi, originated from an area where there is no tradition of acaricide application for tick control, were used as reference ticks. Extremely high susceptibility of reference tick strains was confirmed to all the tested acaricides. Statistical analysis of pooled mean mortality rates revealed that B. decoloratus strains were found resistant to Dieldrine and Diazinon in all studied farms; and to Chlorfenvinphos and Coumaphos only at the Sadamo farm. In addition, strains of R. e. evertsi from the research station farm revealed a slight degree of resistance to Coumaphos. A. variegatum strains from all farms showed high degree of susceptibility to all tested acaricides. The finding of organophosphate resistance is the first report of its kind in Ethiopia. Extensive uses of acaricides like BHC and Bacdip; irregular spraying, failure to maintain adequate lethal concentrations and other managerial constrains hampering the successful use of acaricides are anticipated causes of the emerging acaricide resistance in the study area. Pertinent recommendations were made to alleviate the existing problem in the study area as well as in other affected regions in the country. |
| format | Journal Article |
| id | CGSpace29580 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2001 |
| publishDateRange | 2001 |
| publishDateSort | 2001 |
| record_format | dspace |
| spelling | CGSpace295802023-02-15T10:05:53Z Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia Jobre, Y. Adamu, G. Zerbini, E. amblyomma variegatum boophilus decoloratus cattle metastigmata rhipicephalus evertsi acaricide resistance acaricides bioassays chlorfenvinphos coumaphos diazinon Bioassay of acaricide resistance on three common cattle ticks was carried out on four farms in Holotta area, Central Ethiopia, using a standardized FAO Acaricide Resistance Test Methods. Larval progeny of Boophilus decoloratus, Rhipicephalus e. evertsi and Amblyomma variegatum were subjected to larval packet test (LPT) employing four different acaricides (Dieldrine, Diazinon, Chlorfenvinphos and Coumaphos) each with five concentration levels. Strains of Boophilus decoloratus, Rhipicephalus e. evertsi, originated from an area where there is no tradition of acaricide application for tick control, were used as reference ticks. Extremely high susceptibility of reference tick strains was confirmed to all the tested acaricides. Statistical analysis of pooled mean mortality rates revealed that B. decoloratus strains were found resistant to Dieldrine and Diazinon in all studied farms; and to Chlorfenvinphos and Coumaphos only at the Sadamo farm. In addition, strains of R. e. evertsi from the research station farm revealed a slight degree of resistance to Coumaphos. A. variegatum strains from all farms showed high degree of susceptibility to all tested acaricides. The finding of organophosphate resistance is the first report of its kind in Ethiopia. Extensive uses of acaricides like BHC and Bacdip; irregular spraying, failure to maintain adequate lethal concentrations and other managerial constrains hampering the successful use of acaricides are anticipated causes of the emerging acaricide resistance in the study area. Pertinent recommendations were made to alleviate the existing problem in the study area as well as in other affected regions in the country. 2001 2013-06-11T09:24:04Z 2013-06-11T09:24:04Z Journal Article https://hdl.handle.net/10568/29580 en Limited Access Revue de Medecine Veterinaire;152(5): 385-390 |
| spellingShingle | amblyomma variegatum boophilus decoloratus cattle metastigmata rhipicephalus evertsi acaricide resistance acaricides bioassays chlorfenvinphos coumaphos diazinon Jobre, Y. Adamu, G. Zerbini, E. Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia |
| title | Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia |
| title_full | Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia |
| title_fullStr | Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia |
| title_full_unstemmed | Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia |
| title_short | Bioassay of acaricide resistance on three common cattle tick species at Holotta, central Ethiopia |
| title_sort | bioassay of acaricide resistance on three common cattle tick species at holotta central ethiopia |
| topic | amblyomma variegatum boophilus decoloratus cattle metastigmata rhipicephalus evertsi acaricide resistance acaricides bioassays chlorfenvinphos coumaphos diazinon |
| url | https://hdl.handle.net/10568/29580 |
| work_keys_str_mv | AT jobrey bioassayofacaricideresistanceonthreecommoncattletickspeciesatholottacentralethiopia AT adamug bioassayofacaricideresistanceonthreecommoncattletickspeciesatholottacentralethiopia AT zerbinie bioassayofacaricideresistanceonthreecommoncattletickspeciesatholottacentralethiopia |