The use of frequency diagrams in the survey of resistance to pesticides in ticks in southern Africa

The use of frequency diagrams in the survey of resistance to pesticides in ticks in southern Africa

Solomon, K.R.; Baker, Maureen K.; Heyne, Heloise; Van Kleef, Jacqueline; Steyn, P.J.J.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.
URI: http://hdl.handle.net/2263/53770
Date: 1979

Abstract:

A method whereby resistance data can be analysed by means of frequency distributions is described. This method established that Rhipicephalus appendiculatus and R. evertsi evertsi show either little or only developing resistance to the pesticides chlorfenvinphos and dioxathion. Boophilus spp., however, show more instances and higher levels of resistance to these 2 pesticides.

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This article has been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-Format.

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