On this stretch of coast
That rat by the river may be native
The Southern Fleurieu Coastal Action Plan 2026 says native swamp rats are common along the Hindmarsh River, and people regularly confuse them with the introduced black rat. The plan calls the requests for removal that follow unwarranted.
Where you saw it matters
The plan describes swamp rats burrowing in riverbanks and dense grass. The City of Adelaide's pest guide puts roof rats in trees, vines, rafters and upper floors. One on the estuary bank and one in your ceiling are two very different conversations.
Black rats are Granite Island's problem
The same plan says black rats threaten the island's Little Penguins by taking chicks and eggs, and National Parks says a rat baiting program is in place there. That belongs to the park, not to homeowners.
A town that fills and empties
The plan records large swings in population, with crowds in summer and again in whale watching season. Most of this coast is private homes, and a house left quiet between visits gives pests time without anyone noticing.
Arriving at a place that's been shut up
Start in the kitchen
Look in cupboards and behind the fridge for droppings and chewed packets, and throw out anything opened.
Walk around the outside
Watch the eaves, vents and wall gaps for wasps going in and out. The City of Adelaide says European wasps tend to fly in a straight line, which helps show where a nest is. Stay well back if you find one.
Check for leaks and damp
Run the taps, look under sinks and clear the gutters. Damp timber attracts termites, and leaks give pests water.
Look over the timber
Report damaged wood or mud tubes to an inspector and leave them undisturbed.
Possums and wasps here
Common brushtail possums are recorded as far out as Granite Island, so the coast has them as well as the Hills. They're protected. Trapping needs a permit or a permitted controller, and any release happens on your own property, within 50 metres, within 24 hours and after dusk.
We haven't been able to read the City of Victor Harbor's own wasp information, and councils near Adelaide differ. Ask them first, then call a pest business if the nest is yours to deal with.
What we'd do in Victor Harbor
Take a photo before anyone acts on a rat near the river, because it may be doing no harm at all. If the signs are inside the house, that's a different job, so tell us what you've seen and your postcode.
Want someone to look at it?
Tell us what you've seen and your postcode, and a local pest business that handles exactly that calls you to talk it through.
