To deter possums in Australia, remove food sources (secure bins, pet food, fallen fruit), use strong scents they dislike (garlic, chilli, ammonia, eucalyptus), install motion-activated lights/sprinklers, block roof/garden entry points with mesh, and try physical barriers like netting; consistency is key as they adapt, so combining methods like scents, lights, and securing food works best to make your property less appealing.
Many strong spices have scents that possums dislike. Garlic, pepper, and cinnamon are particularly pungent. You can scatter them around your home or create DIY sprays out of these and spray on possible entry areas. Just remember to keep the sprays out of reach of pets and children.
Possums are repelled by strong, pungent odors like ammonia, garlic, vinegar, peppermint, camphor, and chili, which mimic predator scents or overwhelm their sensitive noses. You can create deterrents using sprays with these ingredients or place items like mothballs or predator urine in problem areas, but remember to rotate scents and use caution with chemicals, keeping them away from pets and children.
Possums don't like bright lights since they're nocturnal creatures. Setting light fixtures to shine on the trees you see them hanging about in will deter them from coming back. You could also try keeping garden, garage or basement lights on around dusk or nighttime when they are likely to be emerging from their nests.
Possums come to your house seeking easy food, water, and safe shelter, attracted by unsecured garbage, fallen fruit, pet food, and dark, quiet spots like roofs, crawlspaces, or woodpiles that mimic tree hollows. They are opportunistic nocturnal scavengers, so your yard becomes a convenient buffet and resting place, especially if natural habitats are scarce.
You generally shouldn't worry about a possum in your yard as they are shy, beneficial pest-eaters that usually move on, but you should be cautious if it seems sick, injured (out during the day, acting lethargic), or trapped, as they can bite in defense and carry diseases, so keep pets away and call wildlife rescue if needed. The main concerns are preventing them from nesting in your home and avoiding contact, not immediate threat to people or pets unless cornered.
During the day, they prefer to rest and hide in safe, quiet places where they won't be disturbed. This behavior helps them avoid predators and conserve energy for their nighttime activities. During daylight hours, opossums seek out places like burrows, hollow trees, brush piles, and rock crevices to rest.
What doesn't work to deter possums: Fake owls. Physical boundaries such as spikes. Sprays.
Australian possums are nocturnal, meaning they become active after sunset, typically leaving their nests (like roof spaces or tree hollows) around dusk to forage for food, with activity peaking in the first half of the night before they return around dawn. You'll usually hear them start moving, scratching, or thumping around after dark, with noises often heard closer to 10 pm as they venture out.
If spraying on your plants, use a diluted vinegar solution around the base of plants, fences, or other areas where possums are frequent visitors. Otherwise, consider soaking rags in vinegar to place near entry points or areas where possums are trying to access your garden.
Does Vicks Vaporub deter possums? Anecdotal evidence suggests this is effective in the short term, and it won't wash off if you mix it with Vaseline. Possums are known to get used to smells, though, so it might not be a long-term solution.
Possums are skittish creatures, so unexpected noises and movement can help deter them. Here are some easy and safe possum scare tactics that will be of a lot of use to you in the long run: Wind chimes: Hang wind chimes near your garden to create a constant source of noise that possums will find unsettling.
Use strong scents that opossums dislike, such as Cayenne pepper (mixed with water and sprayed liberally around problem areas), garlic, ammonia, and mothballs. Use a natural spray made from soaking Quassia bark chips in water, which opossums find unpalatable.
As our question: “Do coffee grounds attract pests?” — no! The opposite is true. According to the Environmental Protection Agency (EPA), coffee grounds are an efficient way to keep pests out of your garden.
Possums are nocturnal animals and the flashing lights really seem to annoy them… enough that they take themselves elsewhere for a midnight snack. They also don't like spot lights and porch lights, so having these on motion sensors can help.
It's illegal for an unauthorised person to trap or harm possums. Trapping, removing or killing a possum without a licence will result in severe penalties.
There are certain smells that opossums find unpleasant and may avoid. In addition to ammonia and mothballs, possums will also steer clear of odors of vinegar, garlic, onion, peppermint, and camphor.
During the day, the Common Ringtail Possum will sleep in its soccer-ball-sized nest, called a drey, which will be located several meters high in dense foliage, sometimes with several other individuals. They have been known to live in roofs of houses and sheds.
They are rarely seen since they are nocturnal and typically only den in one area for a few days before moving to a new place. Like other mammals, opossums need food, water, and shelter to survive. They will stay in one location until that location no longer meets their needs.
Possums hate strong, pungent smells like garlic, peppermint, eucalyptus, and ammonia, as well as sudden physical disturbances like motion-activated lights/sprinklers and unpleasant tastes (like chilli or bitter sprays), which disrupt their sensitive noses and sense of security, but they can get used to static deterrents, so regular reapplication or movement is key.
Indonesian fish sauce (T): place one tablespoon of sauce in one litre of water and spray on foliage. Garlicspray (S, T): place two tablespoons freshly crushed garlic (a variation is to add two tablespoons of freshly crushed hot chilli) in one litre of hot water. Allow to stand overnight. Spray on foliage.
An easy way to combat this is by adding a wire overhang to your existing fence. Often referred to as a “floppy wire fence”, it's essentially a large piece of wire mesh which hangs over the top of the fence and blocks the parts possums choose to walk on.
For those curious about spiritual meaning, some believe a possum encounter symbolizes adaptability, resourcefulness, or a warning to pay attention to your surroundings.
And yes, opossums will stay in one territory area in their lifetime, however, they won't sleep in the same den every night and tend to rotate den sights every 2-3 days. The best way to see them every night is to have natural food source on your property.
While possums rely more on their sense of smell and environmental cues, they can remember familiar individuals, including humans, over time. Their memory plays a significant role in navigating their surroundings and identifying potential threats or food sources.