Bioassay of acaricide resistance on three common cattle tick species around Holetta area
Bioassay of acaricide resistance on three common cattle tick species was conducted at the Institute of Agricultural Research, Holetta Research Centre by using standardized FAO Acaricide Resistance Test Methods. Larval progeny of Boophilus decoloratus, Rhipicephalus evertsi evertsi and Amblyomma vari...
| Main Authors: | , , , , |
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| Format: | Conference Paper |
| Language: | Inglés |
| Published: |
Ethiopian Society of Animal Production
1998
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/50219 |
| _version_ | 1855524084317683712 |
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| author | Shiferaw, Y. Girma, A. Jobre, Y. Hailemariam, M. Zerbini, E. |
| author_browse | Girma, A. Hailemariam, M. Jobre, Y. Shiferaw, Y. Zerbini, E. |
| author_facet | Shiferaw, Y. Girma, A. Jobre, Y. Hailemariam, M. Zerbini, E. |
| author_sort | Shiferaw, Y. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Bioassay of acaricide resistance on three common cattle tick species was conducted at the Institute of Agricultural Research, Holetta Research Centre by using standardized FAO Acaricide Resistance Test Methods. Larval progeny of Boophilus decoloratus, Rhipicephalus evertsi evertsi and Amblyomma varigatum were subjected to larval packet test (LPT) employing four different acaricides namely, Dieldrin, Diazinon, Chlorefenvinphos and Coumpaphs, each with five concentration levels. Statistical assessment of pooled mortality rates (least square means (+ or -) standard error) to the tested acaricides were 67.93 (+ or -) 0.86 for B. decoloratus, 97.93 (+ or -) 0.86 for R. e.evertsi and 97.23 (+ or -) 0.86 for A. varigatum. These values were different (P<0.001) between B. decoloratus on the one hand and R. e.evertsi and A. varigatum on the other hand. However, there was no differences (P>0.05) between R. e. evertsi and A. varigatum. The efficacy of Dieldrin, Diazinon, Chlorefenvinphos and Coumaphos against all test ticks were 74.27 (+ or -) 0.99, 84.72 (+ or -) 0.99, 96.82 (+ or -) 0.99 and 94.98 (+ or -) 0.99, respectively. Dieldrin and Diazinon and Diazinon had higher (P<0.001) killing rates of test ticks than Chlorfenvinphos and Coumaphos. The finding of organophosphate (Diazinon) resistance is the first Report of its kind in the country. It is generally presumed that resistant tick population is emerging at an increasing pace in the area warranting a serious attention. The poor efficacy of Dieldrin and Diazinon may be attributed to the extensive use of chemicals like BHC & Bacdip. Furthermore, their faulty application characterized by irregular spraying, failure to maintain adequate lethal concentrations, reliance on one component of tick control strategy and other managerial constraints could have contributed to the developed resistance problems. It is therefore, high time to revise and consider the existing or other tick control strategies that could best address the alarming resistance problem as well as the managerial constraints hampering the successful use of acaricides. |
| format | Conference Paper |
| id | CGSpace50219 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 1998 |
| publishDateRange | 1998 |
| publishDateSort | 1998 |
| publisher | Ethiopian Society of Animal Production |
| publisherStr | Ethiopian Society of Animal Production |
| record_format | dspace |
| spelling | CGSpace502192023-02-15T09:34:58Z Bioassay of acaricide resistance on three common cattle tick species around Holetta area Shiferaw, Y. Girma, A. Jobre, Y. Hailemariam, M. Zerbini, E. holetta cattle metastigmata acaricides drugs resistance to chemicals species biological differences boophilus decoloratus rhipicephalus evertsi amblyoma variegatum mortality Bioassay of acaricide resistance on three common cattle tick species was conducted at the Institute of Agricultural Research, Holetta Research Centre by using standardized FAO Acaricide Resistance Test Methods. Larval progeny of Boophilus decoloratus, Rhipicephalus evertsi evertsi and Amblyomma varigatum were subjected to larval packet test (LPT) employing four different acaricides namely, Dieldrin, Diazinon, Chlorefenvinphos and Coumpaphs, each with five concentration levels. Statistical assessment of pooled mortality rates (least square means (+ or -) standard error) to the tested acaricides were 67.93 (+ or -) 0.86 for B. decoloratus, 97.93 (+ or -) 0.86 for R. e.evertsi and 97.23 (+ or -) 0.86 for A. varigatum. These values were different (P<0.001) between B. decoloratus on the one hand and R. e.evertsi and A. varigatum on the other hand. However, there was no differences (P>0.05) between R. e. evertsi and A. varigatum. The efficacy of Dieldrin, Diazinon, Chlorefenvinphos and Coumaphos against all test ticks were 74.27 (+ or -) 0.99, 84.72 (+ or -) 0.99, 96.82 (+ or -) 0.99 and 94.98 (+ or -) 0.99, respectively. Dieldrin and Diazinon and Diazinon had higher (P<0.001) killing rates of test ticks than Chlorfenvinphos and Coumaphos. The finding of organophosphate (Diazinon) resistance is the first Report of its kind in the country. It is generally presumed that resistant tick population is emerging at an increasing pace in the area warranting a serious attention. The poor efficacy of Dieldrin and Diazinon may be attributed to the extensive use of chemicals like BHC & Bacdip. Furthermore, their faulty application characterized by irregular spraying, failure to maintain adequate lethal concentrations, reliance on one component of tick control strategy and other managerial constraints could have contributed to the developed resistance problems. It is therefore, high time to revise and consider the existing or other tick control strategies that could best address the alarming resistance problem as well as the managerial constraints hampering the successful use of acaricides. 1998 2014-10-31T06:08:56Z 2014-10-31T06:08:56Z Conference Paper https://hdl.handle.net/10568/50219 en Limited Access Ethiopian Society of Animal Production |
| spellingShingle | holetta cattle metastigmata acaricides drugs resistance to chemicals species biological differences boophilus decoloratus rhipicephalus evertsi amblyoma variegatum mortality Shiferaw, Y. Girma, A. Jobre, Y. Hailemariam, M. Zerbini, E. Bioassay of acaricide resistance on three common cattle tick species around Holetta area |
| title | Bioassay of acaricide resistance on three common cattle tick species around Holetta area |
| title_full | Bioassay of acaricide resistance on three common cattle tick species around Holetta area |
| title_fullStr | Bioassay of acaricide resistance on three common cattle tick species around Holetta area |
| title_full_unstemmed | Bioassay of acaricide resistance on three common cattle tick species around Holetta area |
| title_short | Bioassay of acaricide resistance on three common cattle tick species around Holetta area |
| title_sort | bioassay of acaricide resistance on three common cattle tick species around holetta area |
| topic | holetta cattle metastigmata acaricides drugs resistance to chemicals species biological differences boophilus decoloratus rhipicephalus evertsi amblyoma variegatum mortality |
| url | https://hdl.handle.net/10568/50219 |
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