Coetzee, Bridgette B.Stanford, G.D.Davis, D.A.T.Bigalke, R.D.2014-11-172014-11-1720141987Coetzee, BB, Stanford, GD & Davis, DAT 1987, 'Resistance by the blue tick (Boophilus decoloratus) to the synthetic pyrethroid, fenvalerate’, Onderstepoort Journal of Veterinary Research, vol. 54, no. 1, pp. 83-86.0330-2465http://hdl.handle.net/2263/42628The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.The Shaw larval test, in conjunction with adult tick immersion and stall tests, was utilized to confirm that a field strain of B. decoloratus, from Natal, is highly resistant to the ixodicide fenvalerate (Factor of resistance 4 744). This resistance developed over a reported 18 months of usage for cattle dipping.en©ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original). ©University of Pretoria. Dept. of Library Services (digital).Veterinary medicineVeterinary medicine -- South AfricaArticle