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Citrus scents such as lemon or lime are lethal to bed bugs. They’re drawn to the smell, but the chemicals often kill them. There are other ways to kill bed bugs without an exterminator, including using steam, DIY heat treatments, essential oils, diatomaceous earth, and more. However, you should hire a professional bed bug exterminator to eliminate large numbers of bed bugs.

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.

Scent deterrents like ammonia, vinegar, mothballs, and pepper can help keep coyotes away, but these are best used in tandem with other preventative measures. Remember that ammonia and vinegar can kill your plants and/or grass, so it’s best to soak rags in these substances or spray them on hardscaped areas to avoid damaging your landscape.

You should not see live bed bugs after heat or fumigation treatments, but you may see dead bugs. For chemical treatments, it can take several days for bed bugs to die. However, you may see live bed bugs if they are hiding in areas to avoid insecticides or if they are resilient to the type of treatment used.