Start by wiping ant trails with soapy water, storing food in sealed containers and fixing leaks or damp areas that may attract ants. Ant baits can help workers carry treatment back to the nest, but spraying visible ants may only provide short-term relief. If the infestation keeps returning, identify where ants are entering and contact a licensed pest controller in Victoria for advice suited to your home and the ant species. Follow all product instructions carefully, especially around children and pets.