- How and when to treat cattle ticks
- Purchasing cattle inside the cattle tick zone
Purchasing and moving cattle within the cattle tick zone
- Conduct due diligence on cattle before purchase. This includes inspecting the cattle health declaration or the National Vendor Declaration (NVD), pre-purpose reports, or online lot assessments to determine what treatments have been applied to the cattle. This will enable you to make an informed decision about your future management strategies and the risk of introducing chemical resistance. If you cannot access this information, ask the seller or the selling agent if the cattle have received any other cattle tick treatments, and which chemical actives were used.
- Inspect the cattle for ticks before purchase where possible.
- If cattle were treated prior to sale
they will appear visibly free of ticks and can be moved in a timely, cost effective manner that minimises the risk of introducing resistant ticks.
- If the sale
cattle are infested with ticks, treat them to kill the ticks before moving the cattle to your property to prevent the transfer of potentially resistant ticks. Note that if you are planning to relocate cattle across the tick line, into the tick-free zone, you must follow State and Territory regulatory treatment requirements.
- If you have experienced a tick fever outbreak, or you know it to be present in your area, check if the cattle have received a tick fever vaccination. Cattle of any age can be vaccinated, but it is best to vaccinate animals between 3-9 months of age. It takes about 3-4 weeks after vaccination for immunity to develop to babesiosis and up to two months for immunity to develop to anaplasmosis. If it is not possible for you to delay the movement of cattle, move them before day 7 or from 21 to 30 days after vaccination. These 'windows' prevent animals being transported and stressed during reaction periods, but the risk of disease from field infection still exists until immunity develops.
See also moving cattle.