
Scientists have discovered how a tick which transmits devastating diseases to cattle has developed resistance to one of the main pesticides used to kill it ...
http://phys.org/news/2013-10-scientists-secret-cattle-resistance-pesti

Scientists have discovered how a tick which transmits devastating diseases to cattle has developed resistance to one of the main pesticides used to kill it ...
http://phys.org/news/2013-10-scientists-secret-cattle-resistance-pesti
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