Keep Areas Clean and Dry
Around homes, earwigs thrive in damp, dark environments like basements and crawl spaces. Outdoors, earwigs are typically found underneath rocks and in shallow, damp soil where they feed off of various organic material and dead insects.
To prevent earwigs from finding their way indoors, keep all areas clean and dry. This is especially important in areas such as the kitchen and bathroom, as well as doorway and windows. You may also want to invest in a good drainage system for your home's foundation, as this is an area where moisture is known to accumulate.
For gardens, follow proper watering recommendations and remove large, unnecessary rocks where earwigs can lay their eggs.
Another great way to control earwigs is to use boric acid. Available in powder form, boric acid can be dusted indoors and outdoors where earwigs are present. It can also be applied to cracks and other hard to reach places earwigs may be entering from.
Generally, boric acid is a harmless form of pesticide, but make sure to read the warning labels and instructions to ensure its proper usage.
Vegetable oil can be used as a form of bait to lure in earwigs before killing them. Place a shallow pan with enough vegetable oil to cover the bottom. Earwigs will get attracted by the scent and enter the pan, only to get stuck and die. This technique is a simple and easy way to get rid of earwigs without resorting to chemical pesticides.
Keep in mind that vegetable oil may also attract other pests, such as a rats and rodents, so refrain from keeping it out for extended periods of time.
Stop Earwigs from Spreading!
Earwigs may not be the most threatening pests, but they can lay hundreds of eggs at time, putting your home at risk for an infestation. Once a colony has made its way in your foundation or garden, the problem may become too large for the above methods to handle. If this occurs, contact a professional exterminator to get rid of earwigs, infestations, and the causes of their entry into your home.