Get matched with top pest control specialists in Ogema, WI

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.

You can use commercial repellents to help deter rodents, but they often have mixed results. A better solution is preventing rodents from getting under your home in the first place. Using steel wool or foam sealer, plug all potential entry points like gaps and cracks in the foundation. 

Also, consider installing hardware cloth or wire mesh over vents, utility openings, and any openings under the porch or foundation. Regular inspections and maintenance will aid in early detection and prevention, ensuring a rodent-free environment beneath your house.

Squirrels hate not having access to secure shelter or food sources. Your best line of defense is to make your property less attractive by removing access to these things. There are chemical squirrel repellents, but these have mixed success. According to Pennsylvania State University, you can apply products containing the bittering agent denatonium saccharide to a squirrel's favorite fence, tree, or roof spots. However, you need to reapply repellents regularly, which aren’t scientifically proven effective.

Your household members and pets should remain out of the house for at least two to four hours after using a bug bomb. However, you should adhere to the product’s safety guidelines, as well as any professional guidance from an exterminator.