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Mud tubes, wood damage, and swarming are typical indicators.

While cockroaches can contaminate appliances and their contents, they won't cause damage. Cockroaches can spread bacteria like E. coli and salmonella, making it important to keep them out of places where food is stored, such as a refrigerator. When it comes to electronics, however, cockroaches could potentially damage internal electrical components. As the pests navigate inside a TV or console, they may touch high-voltage components that could short out your product. This damage could lead to costly repairs or require replacements.

Most spiders are harmless or do little more than the equivalent of a bee sting. Prevention is the best option for more serious cases. Keep spiders out of your home when possible. When you find spiders, a spider nest, or egg sac, remove it quickly before an inquisitive pet or child gets involved. When children are old enough, teach them to recognize the few dangerous species of spiders and avoid them to prevent getting bitten.

We recommend using diatomaceous earth to create roach repellent barriers outdoors. Most oil and spray applications will quickly wear down in outside weather, so they aren’t as much use  in the outdoors. If you are really struggling with an outdoor roach problem, we suggest looking for pet-safe bait traps you can set.