Fake spiders on the porch? Perfect. Real mice in the pantry? Not quite the Halloween surprise anyone wants.

Between carved pumpkins, bowls of candy, and decorations pulled out of storage, Halloween can create a few extra opportunities for pests. Add cooler Canadian fall weather, and it is a good time to give your home a quick pest-prevention check. Here is how to keep the spooky fun without inviting unwanted guests.

Keep jack-o’-lanterns from becoming a pest buffet

Carved pumpkins are a Halloween favourite, but exposed flesh and leftover pulp can provide food for insects and wildlife. Once a pumpkin begins to soften and decay, it is time to retire it from porch duty.

• Remove pumpkin seeds and pulp from steps, patios, and outdoor tables after carving.
• Check pumpkins daily for mould, leaking liquid, and soft spots, and remove deteriorating ones promptly.
• Where practical, place pumpkins away from doorways and exterior walls.
• Dispose of pumpkins according to your local organics or waste program, and keep collection containers closed.

Skip spraying pumpkins with insecticides or using homemade chemical treatments to preserve them. Use a battery-powered light rather than an open flame, especially near dry decorations.

Make the candy bowl a treat for people, not pests

Sugary spills, crumbs, and accessible food can attract ants and other household pests. Rodents can also chew through many lightweight packages, so a candy wrapper is not a reliable storage barrier.

• Store extra treats in sturdy, tightly closed containers.
• Wipe up sticky spills and sweep up crumbs after parties and trick-or-treating.
• Check pantry shelves for damaged packaging, droppings, or gnaw marks.
• Discard food that appears contaminated by pests rather than trying to salvage it.

If you spot a trail of ants, clean away food residue and look for the entry point before reaching for a treatment.

Watch for mice looking for a way inside

Cooler weather can bring rodent activity closer to buildings. Halloween is a useful reminder to inspect the places where outdoor air, utility lines, and doorways meet your home.

Look around exterior doors, garage doors, foundation openings, vents, and pipe penetrations. Repair damaged screens and worn door sweeps, and seal gaps with durable, rodent-resistant materials suited to the opening. Do not block required ventilation or interfere with gas appliances or other building systems.

Keep birdseed and pet food in secure containers, tidy up spilled seed, and reduce clutter near exterior walls. If you suspect an animal is already inside, identify the activity before closing its route so you do not trap it in a wall or other enclosed space.

Inspect decorations before they come indoors

Decorations stored in garages, sheds, and basements deserve a quick check before they move into living spaces. Inspect boxes, fabric decorations, and hollow props for insects, nesting material, or signs of rodents.

Unpack in a well-lit area and avoid shaking out dusty or contaminated items indoors. If you find rodent droppings or nesting material, keep children and pets away. Do not sweep or vacuum the material dry; follow current public-health guidance for safe cleanup.

After Halloween, let decorations dry fully and pack them in sturdy, lidded containers. Labelled bins make next year’s setup easier and help you notice damage sooner.

Do not let the front door become an open invitation

A busy trick-or-treat night means frequent door openings. Keep the door closed between visitors where practical, make sure screens are intact, and avoid leaving food or drink spills on the porch overnight.

Outdoor lighting can attract flying insects. Where safe and practical, position lighting away from the doorway so insects are not gathering right where guests enter. Keep walkways and steps well lit for visitors.

Choose prevention first, and treat carefully

Finding a pest does not mean every room needs treatment. Start by identifying what you are seeing, removing food and shelter, and addressing entry points. A few insects near a porch light call for a different response than repeated rodent activity in a pantry.

If a pest-control product is needed, choose one labelled for the pest and intended location, and follow every label direction. Keep products and traps inaccessible to children and pets, and never place treatments where they could contaminate candy, food, or food-preparation surfaces. Do not use outdoor-only products indoors or mix pest-control chemicals.

For recurring activity, an unidentified pest, or a problem you cannot safely access, contact a qualified pest-control professional.

A little prevention keeps Halloween fun

Fresh pumpkins, securely stored treats, checked decorations, and well-maintained entry points can help reduce unwanted pest visits. Take a few minutes before the festivities and another few after the candy haul comes home.

Let the costumes be creepy. Keep the house comfortable.