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As winter sets in, many people notice a paradox: pest activity often seems to intensify around transit corridors — highways, rail lines, subways, ports and the paved strips and edges that connect urban and rural places. Those corridors are more than routes for vehicles and goods; they are linear habitats and conduits that concentrate heat,…

Seattle’s distinctive winter — damp, mild, and shaded by dense stands of evergreens and deciduous maples — creates the perfect backdrop for yard debris to accumulate. Heavy rains and seasonal storms strip branches and leaves onto lawns, gutters and porches, while piles of old mulch, firewood and garden waste build up around foundations. What looks…

When winter tightens its grip, many homeowners expect quiet, empty yards — but for rodents, January can be one of the busiest months of the year. Cold temperatures, reduced outdoor food sources, and human behaviors surrounding the holidays combine to make the start of the year a high-risk time for mice, rats, and other commensal…

Cold weather has a complex, sometimes counterintuitive effect on pest sightings in cities. As temperatures drop, many outdoor insect species enter dormancy or die back, so parks and sidewalks can seem noticeably quieter. At the same time, urban pests that can access warm, sheltered microhabitats—buildings, basements, utility tunnels, sewers, and subway systems—often concentrate, become more…

Seattle restaurants face a particular set of pest pressures when winter arrives. Unlike cities with hard freezes that temporarily suppress activity, Seattle’s relatively mild, wet winters and dense urban environment encourage many pests to move inside rather than die off. Rain forces rodents, raccoons, and other wildlife out of saturated burrows and into sheltered spaces;…

Spring in Seattle brings longer days, warmer temperatures, and — for homeowners — a steady uptick in pest activity. Our maritime climate of wet winters and mild springs creates ideal conditions for insects and rodents to emerge, breed, and seek warm, dry shelter. By the time flowers bloom and lawns green up, ants, wasps, rodents,…

When temperatures drop and the landscape hardens, many animals that trouble homes and gardens don’t head outdoors in search of a winter meal so much as a place to survive the cold. For a wide range of pests—from mice and rats to cockroaches, ants, spiders and many overwintering insects—the imperative in winter shifts from active…

January is a surprisingly strategic month for rodent proofing. As the coldest weeks of the year settle in across much of the Northern Hemisphere, mice, rats, and other commensal rodents are more strongly motivated to move into human structures in search of warmth, food and shelter. At the same time, the period immediately after the…

By the time crocuses push through the thawing ground and temperatures begin to climb, many of the pests that make summer and fall expensive and unpleasant are already on the move. Homeowners and property managers often wait until they see obvious signs—chewed wiring, droppings, mud tubes, or a swarm in the backyard—before calling for help….

As temperatures drop and landscapes go dormant, the rhythm of pest activity changes — but it doesn’t disappear. Winter alters pest life cycles, behavior, and the effectiveness of many control measures, which in turn changes how and when pest management should be scheduled. For homeowners and pest-control professionals alike, understanding these seasonal shifts is essential:…