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Other than blasting aphids away with your hose set to jet, insecticides offer the quickest way to kill aphids on contact. Protect other insects and critters by choosing a natural insecticide for your garden, which can be as effective as a synthetic one.

To find a quality professional and avoid pest control scams, it's important to do your homework before you hire. Start by reading customer reviews or getting a direct recommendation from a friend, neighbor, or family member. Once you have a shortlist of top-rated companies, verify that each pro is licensed and insured. It’s also a good idea to get multiple price quotes from vetted pros to find the best deal.

Boric acid is among the harsher chemicals you can use in your home, and it poses risks whether ingested, inhaled, or touched. Kids and pets alike tend to put their hands and mouths on anything within reach, so it’s always a good idea to store boric acid in a spot they can’t get to and use it only when they’re not around for an extended period. When you use it, ensure they’re out of the house and fully clean up any trace of boric acid when you’re done because even a small amount can cause problems. 

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.