08/19/2026
What pests should Portland homeowners be watching for this fall?
As temperatures cool and the weather changes, pests may start searching for food, moisture, warmth, and protected places to spend the season. Knowing where to look can help you recognize signs of activity early.
🕷️ Spiders: Check garages, basements, crawl spaces, windows, and corners for webs, egg sacs, and increased activity.
🪲 Stink bugs: Look along exterior walls, windows, doors, attics, and wall voids. They may gather on sunny areas of your home before looking for protected shelter.
🐭 Rodents: Check attics, crawl spaces, garages, wall voids, and basements for droppings, gnaw marks, scratching sounds, and possible entry points.
🐜 Ants: Look around kitchens, bathrooms, sinks, foundations, and other areas where moisture is present.
🪳 Cockroaches: Check kitchens, bathrooms, cabinets, under appliances, and other areas where food and moisture may be available.
🐝 Wasps: Look around eaves, rooflines, wall voids, decks, and other areas where nests may be hidden. Wasp colonies can be at or near their largest in late summer and early fall.
Fall is a good time to take a closer look at the outside of your home, too. Check your foundation, windows, doors, vents, and other potential entry points.
What pest are you seeing around your Portland home this fall?
