Our most notable nuisance Cockroaches are supposed to be tropical bugs. As in, from the tropics. Where it’s hot. Our weather definitely isn’t tropical! So why are these gross, disruptive, apparently-not-just-tropical roaches doing around here this time of year? Isn’t winter supposed to kill things like roaches?
While it’s true that cold can kill cockroaches, that doesn’t mean we get to stop worrying about them. In fact, cockroaches are more likely to invade homes during winter than they are any other time of year. Here’s everything you need to know about why roaches are around, what they want, and how to stop them.
Table of Contents
Where Did They Come From
This is the question you want to ask yourself repeatedly. How do cockroaches get into your home? Unfortunately, the answer may not be easy to figure out. Roaches can squeeze through 3/16 in gaps in walls, siding, baseboards, and ceiling tiles. They can climb to reach these gaps no matter where they’re located in your home. As highly temperature-sensitive creatures, they can even precisely locate the tiny drafts where hot air escapes the home.
You may even bring roaches into your home – yourself! Like bed bugs, roaches are prolific hitchhikers. They could hide in boxes, bags, furniture, and… pretty much anything else you take into your home. You bring your stuff in, and in the process you bring a roach infestation along, too. Roaches, and ESPECIALLY the dreaded German cockroach can reproduce all year in a warm environment. That means even a small infestation won’t stay small for long.
Why They’re Still Alive
By far the most common cockroach encountered indoors in the Midwest is the German Cockroach. This is the cockroach that actively tries to get indoors and reproduce. The “worst case scenario” cockroach, if you will. Unlike American Roaches, the German cockroach has trouble surviving freezing temperatures. Unfortunately, they’ve acclimated to this inability by becoming very good at finding places to keep warm. The roach will eventually die if exposed to freezing weather, but it takes time. In that time, they have ample opportunity to find a shelter where they can keep warm enough to survive. While they’d love to be inside, it is not out the realm of possibilities that they can make due outside. Several species of roaches can frequently overwinter in firewood piles, garages, utility vents, dumpsters, or even sewers. Roaches have plenty of places to hide in urban environments, which is one reason why they do so well there.
What Do They Want
The German cockroaches in your home want four things: food, water, warmth, and shelter.
First: food. Cockroaches will eat just about anything. Seriously, meat, pasta, sweets, grains, grease… cardboard. It doesn’t really matter. They do have a preference for starchy and sugary foods, however, as these provide them with the most energy.
All living things need water, and roaches are no exception. German cockroaches prefer to live in humid areas where they can remain active and drink condensation, leaks or whatever available water is around.
Warmth is important for German cockroaches not just so they can survive, but so they can reproduce. Cold environments slow roaches down considerably. They essentially become dormant to conserve energy when the temperatures dip below freezing. The warmer the living space, the more active they are.
They require shelter so they can move around and reproduce without fear of predators or other dangers. If your home checks any (or all!) of these boxes off, you could wind up with a cockroach infestation, even in wintertime.
How To Stop Them
While it’s a myth that cockroaches only infest “dirty” houses. Deprive roaches of the four things they want, and they’ll go elsewhere to get them.
Clean up the kitchen and eating surfaces after every meal. Don’t leave dishes sitting out or crumbs leftover on the floor. Vacuum, dust, and mop regularly. Store food in airtight plastic containers–especially the food you keep in the pantry. Take the garbage out every night, and rinse out disposable containers before throwing them away.
Locate and repair plumbing leaks to reduce humidity and deprive roaches of a source of water. Consider investing in a dehumidifier for particularly humid areas of the home. Try to locate drafts, especially in the basement, attic, and near doors and windows. Seal up gaps using caulk. Try to inspect items that could transport roaches before you take them into your home.
Finally, de-clutter as much as possible. The sooner you see cockroaches, the sooner you can take steps to do something about them. Ridding the cockroach menace can seem like an impossible frustration. After all, we’re talking about the pests that are hardy enough to survive nuclear leveling, right? That, like so many other assumptions, is another cockroach myth. Cockroaches aren’t invincible, and they certainly aren’t unstoppable. Give Pest Pros a call with your cockroach problem any time, and we’ll drive the annoying bugs back out of your life for good.
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