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The most effective natural roach repellent is Borax with its key ingredient of boric acid and diatomaceous earth. But some homeowners may not feel like these are “natural” enough, especially since you can’t use Borax around curious pets or toddlers.

On the other hand, studies have shown that oregano oil mixtures have some of the best repellent effects, and other research indicates that catnip oil, peppermint oil, and citrus oils have notable effects on keeping roaches away. Rosemary oil has been shown to be the most effective natural oil for killing cockroaches outright.

Unfortunately, we do. Bed bugs sense our heat signature, particularly the altered heat signature associated with sleep, and exit their hiding spots to feast.

Scientists have found that the chemical traces a dying wasp releases can agitate nearby wasps and make them more aggressive. It may not necessarily attract wasps, but it will make wasps in the area more likely to investigate and feel threatened, which leads to more stings. As a result, it’s not a good idea to swat or crush a wasp anywhere near their nest. Once you have found a nest, hire a wasp exterminator.

Since fleas are so tiny, the best way to find them is with a very thorough search. Focus on two specific areas. First, look where your pets spend lots of time sleeping or playing, which is where fleas are likely to linger. Second, look at ground-level fabrics like carpet, furniture upholstery and similar spots where it’s easy for fleas to hide. While you’re probably worried about fleas inside your home, it’s a good idea to check outdoors around patios or outdoor chairs to see if fleas are congregating in specific spots.