Did you know that the Northwest has at least five known cockroach types? Learn more about them and how to prevent them without chemicals.
Cockroaches may not be the first pest that comes to mind among residents of the Northwestern U.S., but we have them. There are at least five known cockroach types in the Northwest. While most people reach for pesticide sprays or baits as a first response to this abhorred pest, its presence is an indication that sanitation and harborage (e.g., clutter) need to be addressed.
The German cockroach, for example, is among the smallest species at just over one-half inch long, and it often transports from one indoor environment to another via the corrugations in cardboard. It thrives in kitchens, pantries, and warm indoor environments and tends to be found at counter-top levels and higher. The Oriental cockroach, conversely, is over an inch long, is most often at floor-level, and can thrive outdoors among decaying organic matter as well as indoors -- especially in moist environments such as restrooms and basements. Cockroaches tend to be night-active, and populations may go unnoticed until quite large. Pesticides may appear to help, but to actually get rid of cockroaches and prevent more from occurring, identification and non-chemical measures are necessary. February and March are great months to brush up on cockroach prevention before populations begin to increase in late spring and summer.
To learn more about the types of cockroaches, their habits, and how to effectively prevent and manage them, check out the cockroach control manual from the University of Nebraska-Lincoln: http://lancaster.unl.edu/pest/roachmanual.shtml.