Sequim Cockroach Infestation — What That Single Sighting Really Means
Cockroaches are active at night and rest in concealed harborage sites during the day — behind refrigerators, inside wall voids, under sinks, within cabinet hinges, and inside electrical appliances. When a cockroach is spotted in daylight, it means the colony has grown large enough to push individuals out of established harborage zones.
In Sequim, the most commonly treated species are the German cockroach and the American cockroach. German cockroaches reproduce rapidly and develop resistance to insecticides when the same product is applied repeatedly. Effective treatment requires identifying the correct species and eliminating the colony.
Avoid Spraying Before Professional Treatment
Aerosol sprays applied before professional inspection scatter cockroaches into deeper wall voids and cavities — fragmenting the colony and significantly complicating accurate assessment. If you have seen cockroach activity in your Sequim property, call a specialist before attempting any treatment yourself.
Why Cockroach Infestations Are a Health Issue, Not Just a Nuisance
- Disease transmission: Cockroaches carry and spread bacteria including Salmonella and E. coli, contaminating food preparation surfaces.
- Allergens: Cockroach droppings, shed skins, and saliva are recognized allergens associated with asthma aggravation, particularly in children.