Quick Scoop: The best ways to keep possums away are to remove food sources, block entry points, and use humane deterrents like motion-activated lights or strong scents they dislike. These recommendations are consistently cited across pest-control sources and local wildlife guidance.

What works best

  • Take away food. Bring pet food inside, secure trash lids, clean up fallen fruit, and avoid leaving compost or BBQ scraps out overnight.
  • Seal access points. Close gaps under porches, repair roof openings, and cover vents or other entry spots with sturdy material like hardware cloth.
  • Use deterrent smells. Common repellents mentioned include garlic, ammonia, peppermint, cayenne pepper, mothballs, and predator scents such as fox urine.
  • Add motion-activated lighting. Sudden light can discourage possums from hanging around yards, coops, and garden areas.
  • Clear shelter spots. Remove brush piles, stacked firewood, and other hiding places that make your property feel safe to them.

Humane approach

Possums are usually looking for easy food and shelter, so the most effective long-term fix is making your yard less inviting rather than trying one single repellent. Strong scents and lights can help, but they work best when paired with cleanup and exclusion measures.

If they keep coming back

If you still see them after cleaning up food and sealing entry points, a wildlife control professional can help with humane removal and exclusion.

TL;DR: Remove food, block entry holes, clear hiding spots, and use motion lights or scent deterrents.