According to the U.S. Environmental Protection Agency, pyrethrins and pyrethroids are the most common chemical compounds used to get rid of bed bugs. These chemicals force bed bugs out of their hiding spots and kill them on the spot so they are eliminated for good. Only professional exterminators can apply these treatments, and they are reserved for severe infestations.

Certain strong smells may help repel bats, though this is not a foolproof method and is best used in conjunction with other deterrence strategies. Scents like peppermint oil, eucalyptus, cinnamon, cloves, and mint are often suggested as natural remedies. To create a spray, you can mix two cups of warm water with half a cup of sugar and a few drops of your preferred essential oil. Apply this mixture using a spray bottle to possible entry points and throughout the affected area, such as an attic. While this home remedy is popular, evidence supporting its effectiveness is limited.

It can take several days to a few weeks to completely get rid of gnats, though this timeline can vary depending on the severity of the infestation and the methods used to eliminate the gnats. During this time, it’s crucial to identify and eliminate the source of the infestation, such as removing any overripe fruit, decaying plant matter, or damp soil.

Pest control timelines depend on what services are being provided, size and type of infestation, and size of your home. Some inspections can take an hour or more, while preventative treatments only take 30 minutes to complete. Basic spaying for a problem like roaches or termites can take about an hour for small homes, but much longer for large properties and infestations. Consult your pest control pro for a time estimate based on your situation.