
%0 Journal Article
%A Roulston, WJ 
%A Schuntner, CA 
%A Schnitzerling, HJ 
%A Wilson, JT 
%T Detoxification as a Mechanism of Resistance I a Strain of the Cattle Tick Boophilus Micropluse (Canestrini) Resistant to Organophosphorus and Carbamate Compounds
%J Australian Journal of Biological Sciences
%D 1969/12/01
%V 22
%N 6
%P 1585-1590
%K 
%R https://doi.org/10.1071/BI9691585
%U https://www.publish.csiro.au/paper/BI9691585 
%X Strains of the cattle tick resistant to organophosphorus compounds were first found at Ridgelands in central Queensland in 1963 (Shaw and Malcolm 1964; Shaw 1966; Roulston, Stone, Wilson, and White 1968). Resistance of a different type was subsequently found at Biarra in south-eastern Queensland in 1966 (Roulston and Wharton 1967; Wharton 1967; Shaw, Cook, and Carson 1968). Ridgelands and Biarra strains of ticks both exhibit resistance to a wide range of organophosphorus and carbamate chemicals but differ in that resistance levels are higher and resistance extends to a wider range of chemicals in the Biarra strain. Biochemical investigations have shown that resistance in both strains is due to the presence of an acetylcholin-esterase system which is relatively insensitive to inhibition by organophosphorus chemicals (Lee and Batham 1966; Roulston, Schnitzerling, and Schuntner 1968; Schuntner, Roulston, and Schnitzerling 1968) 
