Which heat treatment is effective in killing all stages of bed bugs?

The heat treatment that effectively kills all stages of bed bugs is at a temperature of 130 degrees Fahrenheit for 1 hour. Bed bugs are quite resilient, and their eggs, nymphs, and adult stages can withstand lower temperatures and shorter exposure times.

At 130 degrees Fahrenheit, the sustained exposure for one hour is crucial, as it ensures that the heat penetrates into the places where bed bugs hide and sufficiently raises their body temperature to a lethal level. The combination of the temperature and duration forms a critical threshold where all life stages of bed bugs are killed effectively, making it a reliable method for eradication.

Temperatures above this threshold, such as those specified in the other options, either do not reach the necessary lethal level for the required duration or may not be practical for effective application in typical situations where bed bugs hide, such as in mattresses, box springs, and crevices in furniture.