Bed bugs are tough creatures. They are resistance to cold and heat between some temperatures and they can live for a long time without feeding.
They can easily keep living between 45°F and 100°F. Conditions will be harder for bed bugs, when temperature is near to 0°F and more than 113°F.
You can use some homemade remedies or chemicals or bed bug sprays. They will all have different results from each other.
Bed bug are resistant creatures, and it’s not easy to kill them in most cases. Those chemicals or sprays you use for bed bugs are the most effective ways to kill them.
Bed bugs will keep moving around and they can contact your spray or dust anytime. When they contact it, bed bugs will die in various times due to your treatment way.