Will Cold Kill Bed Bugs. The good news is that yes, cold will kill bed bugs. The bad news is how cold it has to get. If the temperature is 14 °F (-10 °C) it will take up to 5 days to completely kill the bed bugs. You can, however, kill bed bugs faster by putting them into an even colder environment.
Using Freezing Conditions to Kill Bed Bugs (.pdf) Putting infested items in a freezer can kill bed bugs if some particular conditions are met. Freezing causes ice to form inside the bed bug, causing injury or death. Freezing bed bugs is easy to do. All it requires is: A freezer that is at or below 00F (-18oC) Time
Cold temperatures can kill bed bugs if they are severe and prolonged enough. If bed bugs are exposed to temperatures at or below 0℉ for a period of approximately four days, they will die. According to an article from the Yale University School of Public Health , female adult bed bugs are even hardier than the rest.
Bed bugs can't survive extreme hot or cold temperatures, so, methods like steam cleaning, hot washes, and drying on a high heat are natural home remedies to eliminate bed bugs from clothing and bedding. Placing small items in the freezer is another way to kill bed bugs.
Cold temperatures don't kill bedbugs, but bedbugs do tend to winterize during cold seasons. Learn different approaches to killing bedbugs, such as insect growth regulators, with help from a pest
Freezing bed bugs can kill them. However, you have to use a very low temperature (0 degrees F or colder) for at least four days for cold treatment to work. Your freezer may not even be cold enough.