Humane North American Porcupine Deterrents

How to Safely and Humanely Deter North American Porcupines

How to Safely and Humanely Deter North American Porcupines

Follow these easy steps and humanely deter North American Porcupines from your area!

Step 1: Remove Attractants

Porcupines are attracted to food and salt sources. Managing these reduces encounters.

Common attractants include:

  • Unprotected gardens or crops

  • Fruit trees with fallen fruit

  • Trees with tender bark or low branches

  • Wooden structures, tool handles, or other salty/treated wood (they chew for minerals)

  • Outdoor pet food or compost piles

Step 2: Add Deterrents

Once attractants are managed, add deterrents to discourage porcupines from settling or chewing.

Effective deterrents:

  • Motion-sensor water sprinklers – harmlessly frighten porcupines away from yards and gardens.

  • Bobbex® spray – applied to plants, trees, and flowers; keeps porcupines (and deer/hares) from chewing for 2–3 months.

  • Tree wrapping – wrap trunks with plastic, mesh, or tin to prevent bark stripping and chewing damage.

  • Fencing – use wire mesh or electric fencing to protect gardens, orchards, or sensitive areas.

  • Light and sound deterrents – motion-activated lights or radios playing human voices can add pressure and make areas feel unsafe.

Scent Deterrents:

  • Synthetic Coyote Urine – spray this near den entrances and areas they are frequenting, re-spray if rains or snows.

  • Dirty kitty litter – bag it, poke holes, and place near den entrances to mimic predator urine.

  • Mothballs – scatter near dens (use cautiously and out of reach of children/pets).

  • Human/pet scents – items like dirty gym socks, human hair, or pet bedding can make areas smell unsafe.

Step 3: Exclude Porcupines from Property

Physical exclusion is one of the most reliable ways to prevent porcupine damage.

Exclusion techniques include:

  • Wrap or cage valuable trees (especially young ones) until they are well established.

  • Fence gardens, crops, or flowerbeds with sturdy mesh or electric fencing.

  • Block access under decks, sheds, and porches with buried wire mesh.

  • Store tools, wooden handles, and salty items indoors.

Step 4: Coexist & Be Patient

Porcupines usually move on when food is no longer available. They are solitary and slow-moving, so short visits may not mean a long-term problem. By reducing attractants and protecting vulnerable areas, most porcupine conflicts can be resolved without trapping or relocation.

Safety Note:

Porcupines cannot “shoot” quills, but they will raise and release them if touched. Quills can embed deeply in skin, so keep pets away and never try to handle a porcupine. If your pet is quilled, seek veterinary care immediately and contact WILDNorth regarding the effected porcupines as they often sustain severe injuries from interactions with dogs.

✅ Follow these steps: Remove Attractants → Add Deterrents → Exclude Safely → Be Patient

We recognize that this is a lot to consider, but these creatures are making these decisions for a reason, and it is much more humane to have them choose to move on rather than trapping and relocating them.

If you need more advice on deterrents and exclusion, please call the Wildlife Helpline and speak to an advisor  at 780-914-4118.

 

Resources:

https://www1.agric.gov.ab.ca/$department/deptdocs.nsf/all/agdex3470/$file/684-11.pdf?OpenElement 

https://www.medicineriverwildlifecentre.ca/wildlife-conflict/deterrents