"I found out the nymphs can live for months and adults over a year" but this is a common statement that you can find on many web sites, in the news, quoted over and over again by everyone, but with no clarification.
A bed bug can take six times its weight in human blood during a nighttime feeding, and feeding can take 3 to 10 minutes. How long can bed bugs survive without a blood meal? It's not as easy as you would think to starve these little guys out by, say, just leaving your home for a couple of weeks.
This means that it's difficult to get rid of bed bugs. you may have no bites for months or you may haven't seen them for a long time, but they can still be there, near you. Even after a house left empty for more than a year, new movers can face the same bed bug problem as the previous hosts had. Can bed bugs live without any hosts?
How Long Do Bed Bugs Live After Spraying? If a home is sprayed with insecticides, any bugs that are caught by the spray will quickly die within a few hours or less. Insecticides are very effective and remain active for many days after use. This means they can catch active bugs long after the area was sprayed.
When living in warm conditions, bed bugs will usually try to feed at regular intervals. Adult bed bugs can survive for about five months without a blood meal. Once the bed bug settles on a host, it will feed for a few minutes. Length of feeding depends on the stage of development, how much it ate last time and how long it's been since it last fed.
A major problem in homes, businesses, schools, and transportation networks around the world, bed bugs have an active life cycle. They can live for up to a year (generally 6-12 months) depending on the conditions; the average lifespan is about 10 months. The presence of these blood-sucking tiny insects stirs up a lot of emotions.