Cattle tick (Rhipicephalus australis, formerly R. microplus) is one of the most economically significant parasites affecting Queensland cattle producers. With resistance to multiple chemical classes now widespread, a well-designed tick control program is essential.
The Queensland Tick Line
Queensland is divided by the Tick Line — a legislated boundary separating tick-infested from tick-free areas. Moving cattle across the Tick Line without inspection and treatment is prohibited. The Wide Bay and Gympie region is generally in the tick-infested zone.
Understanding Tick Resistance
Resistance to all major chemical classes has been confirmed in Queensland tick populations. The key principle: rotate chemical classes each treatment cycle and never rely on a single class long-term.
Tick Development Inhibitors
Fluazuron is a tick development inhibitor that prevents tick larvae from completing their life cycle; on its own it does not kill adult ticks but provides extended residual protection. Some products pair it with a knockdown active — for example Acatak DuoStar combines fluazuron with ivermectin, so it both breaks the tick life cycle and knocks down existing ticks, while Oztik is a fluazuron pour-on. Refer to the current registered product label for withholding periods and re-treatment intervals.
Shop Tick Control at TGRM
TGRM stocks Acatak DuoStar, Oztik and a range of tick treatments in our Cattle Tick & Fly Control collection — talk to our team to pair a knockdown product with a development inhibitor for your rotation.
Related reading: Tick Fever — Vaccination & Prevention | When and How to Drench Cattle | Common Q&A for Queensland Farmers
A guide only. This article is general information from a rural retailer, not veterinary advice. Always read the registered product label and follow its dose rates and withholding periods — the label is the legal document. For diagnosis, treatment of sick animals, or a drench and resistance plan for your herd, talk to your vet.
