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January rainfall — its timing, amount and intensity — plays an outsized role in shaping pest populations at the start of the growing season. For many insects, rodents and plant pathogens, January is a key survival and developmental window: some species are dormant or overwintering as eggs, pupae or adults, while others begin feeding and…

As temperatures drop and the landscape hardens with frost and snow, rats that normally forage and nest outdoors begin a seasonal migration toward warmer, more stable environments. Insulated structures — attics, crawl spaces, wall voids and basements — are especially attractive because they concentrate heat, block wind and create protected microclimates that let animals conserve…

Cold weather does more than make us pull out thicker coats — it profoundly reshapes the daily lives of pests, altering when, what and how much they eat. As temperatures drop, the physiology and behavior of insects, rodents, mites and other common pests shift in predictable ways: metabolic rates slow, activity windows narrow, and the…

January in Seattle brings steady rain, cool temperatures, and the kind of damp, sheltered corners that make houses suddenly attractive to small mammals looking for warmth and reliable food. While Seattle’s winters are milder than many parts of the country, the combination of heated homes, abundant food sources in urban neighborhoods, and dense vegetation around…

When the temperature drops and gardens go dormant, it’s tempting to think pest season is over. In reality, winter is a critical time for pests and for the people trying to keep them out. Many species don’t die off with the first frost — they seek shelter, food, and warmth in and around homes, garages,…

Every winter, as the city digests twinkling lights and post-holiday sales, many Seattle businesses notice an unwelcome follow-up: a spike in pest activity. From downtown restaurants and hotels to neighborhood grocery stores and retail outlets, property managers and owners routinely report more sightings of rodents, cockroaches, ants and other nuisance pests in the weeks after…

January is an ideal time to take a proactive stance against pests, and a timely inspection now can save homeowners and property managers from expensive, disruptive infestations once spring arrives. While the snow and cold keep many insects and rodents less active outdoors, that behavior often drives them indoors in search of warmth, shelter and…

Seattle’s winters are famously mild and wet rather than bitter and snowbound, and that climate plays a big role in why pest problems can go unnoticed until spring. Many common pests—rodents, cockroaches, ants, spiders and certain wood‑destroying insects—are able to remain active year‑round by sheltering in heated buildings, insulated wall cavities, basements and attics where…

Winter is one of the most critical bottlenecks in insect life cycles. For temperate and polar insects, survival through months of low temperatures determines population size and the timing of spring outbreaks, with cascading effects on food webs, agriculture and disease dynamics. While temperature is the most obvious abiotic stressor in winter, moisture—the form, timing…

In Seattle’s damp, temperate climate, heat is more than comfort for humans — it’s a powerful attractant for rodents. Rats are endothermic animals that expend energy to stay warm, so they naturally seek out microclimates that reduce that energy cost. Warm spaces—whether created by a furnace, hot-water pipes, a water heater, heated crawlspaces, or even…