Bed bugs are resilient to cold temperatures and adults may survive for up to a year without feeding and nymphs up to three months without taking a blood meal.
In dormant states, bed bugs of course cannot breed and produce eggs but the bugs can survive for one to two years. In fact, the colder it is the longer they can survive and as soon as a host is reintroduced, they will “come back to life” and continue their nefarious ways.
When bed bugs are in their dormant state, they do not need to feed. According to the University of Kentucky, bed bugs can survive 2 to 6 months without a meal. In extreme cases, when the temperature drops to 55°F or lower, they may survive a year or longer.
“People may have bed bugs and not know it because many people have no physical reaction to bed bug bites,” Dr. Harrison says. “That's why it's important for people everywhere to inspect for bed bugs regularly.”
Most people do not realize they have been bitten until bite marks appear anywhere from one to several days after the initial bite. The bite marks are similar to that of a mosquito or a flea — a slightly swollen and red area that may itch and be irritating. The bite marks may be random or appear in a straight line.
Bed bugs can live for as long as 4.5 months or more in an empty house before completely dying off. The two primary factors that determine how quickly or slowly the bed bugs could die off are the existence of a blood meal host, and the temperature of the house.
Normally, bed bugs don't like to wander around unless they need to feed. During the day, they typically find a hiding place and stick to it. For this reason, many people never see live bed bugs until the infestation becomes severe.
Light Bed Bug Infestation
Minimal fecal staining (small black stains in areas of travel, feeding, and harborage). Fecal stains will be anywhere the bed bugs hide or travel and can be used to detect hot spots. Minimal cast skins (exuviae are the skins shed during the molting process).
Among the popular and most effective DIY home treatments for bed bugs is rubbing alcohol. You can dilute it and place it a spray bottle and simply spray the infested areas. The alcohol will kill bed bugs almost immediately. It also evaporates quickly, leaves no traces or bad smells.
You can either manually inspect the same areas each day, or some clients find it helpful to put a sticky adhesive trap around the bed legs which would pick up bed bugs that are on the move. If no bed bugs show up in the trap after several days, that's one indication that they have been completely eradicated.
Yes, bed bugs can come back after a year.
Bed bugs are excellent at reproducing and building up their colony size if they aren't fully eliminated. If you used a DIY treatment that didn't eliminate all the bed bugs in the colony, then there's always the chance that they'll remain in hiding until they've reproduced.
Where Do Bed Bugs Hide on Your Body? Bed bugs do not typically hide on the body. They prefer to feed, then move back to their hiding place until they are hungry again. In some cases, they may hide in your clothes or the soles of your shoes.
Mattresses and pillows make potential habitats for bed bugs. Pillows may also be host to bed bug eggs, making them a potential point of bed bug infestations. A possible sign that bed bugs have infested pillows may be the appearance of bites.
Bed bugs becoming resistant to a specific type of pesticide. As insects, such as bed bugs, are exposed to a pesticide over time, the most susceptible ones are killed first, leaving only the less susceptible ones to breed. This can result in a rapid decline in relative effectiveness of the pesticide.
How long do bed bugs live? The typical life span of a bed bug is between 10 months and a year. In general, bed bugs seek a meal of blood every 4 or 5 days. However, they can survive for weeks to a year without eating.
If you're suddenly not seeing any bed bugs, they most likely have gone dormant. Bed bugs usually go dormant when temperatures get very cold since they need heat to function. Bed bugs and other insects are cold-blooded, meaning they do not produce their own body heat like humans.
Bed bugs are generally considered to be nocturnal and prefer to forage for a host and take a blood meal during the night. They also will come out in the daytime or at night when lights are on, in order to take a blood meal, especially if there were no human hosts in the structure for a while and they are hungry.
Bed bugs are easy to kill using heat. Their thermal death point is reported to be 114-115° F. Putting infested clothing in a hot dryer is an excellent way of killing bed bugs and their eggs. Heat can also be used to kill bed bugs and their eggs in furniture and carpeting.
Don't count on bed bugs to go away on their own. In theory, they can. In practice, they don't unless several highly specific circumstances occur. Your best bet is professional bed bugs treatment.
Bed bugs are hard to control, but you can do it! Using insecticides alone to control bed bugs is not the best solution. Cleaning, getting rid of clutter and taking a few other steps are just as important as applying insecticide when you're trying to control bed bugs.
Finding one bed bug in a home is not necessarily a sign that an infestation is present. If you found a single bed bug, killed it, and can't find another after a thorough search, wait for a few days. Bed bugs don't take time off; if there are more, they will show themselves. Be vigilant.
Besides bedbugs, numerous insects bite at night. These night biters can be mites, fleas, mosquitoes, lice, spiders, and ticks. Most of these insect bite marks look alike; hence, you should first look for bedbugs and investigate further. These insects certainly don't bite you when you're in bed.
Hogan said that if you don't see any bugs and haven't traveled relatively recently, you may want to consider things like detergents, medications you may be taking, allergy issues, and more because one of those other things might be what's actually causing the itchiness.
If you ignore the problem, bed bugs will reproduce and multiply and can quickly infest your entire house, from couches to carpets and even clothing. Once this happens you have a big problem that can get costly to get rid of.