How Long Do Stink Bugs Live?

Bill Swank
First Published: | Updated: February 27, 2024

Stink bugs, commonly found within homes across the U.S., are notorious for their unique defense mechanism. Despite their small size, stink bugs could become quite a nuisance for their pungent odor and swarming behavior. If you’re wondering how long these intimidating creatures stick around, then you’re in the right place.

In this comprehensive guide, we delve into the details of a stink bug’s lifespan, examining the influences of their species, mating activity, and even how they adapt and survive in different climates. Learn about what affects their lifespans and gain insight into ways to manage or prevent their infestations. So buckle up, and let’s explore the fascinating, but smelly, life of stink bugs!

  • Stink bugs generally live for about 6-8 months, depending on their species and environmental conditions. However, their lifespan might vary significantly based on sexual activity, with unmated stink bugs outliving their mated counterparts.
  • The life cycle of a stink bug consists of three stages, namely the egg, nymph, and adult stages. Each phase in this cycle plays a significant role in the overall lifecycle and lifespan of the stink bug.
  • Stink bugs have evolved to handle different climates by entering a state of dormancy, known as diapause, during cold winter months. However, if they wake up from this state too early, it can negatively affect their lifespan and also lead to increased indoor activity in the latter part of winter.
  • The lifespan of a stink bug is influenced by several factors including environmental conditions, food availability, predators, the use of pesticides and chemicals, diseases and parasites, species, reproduction, and stress along with disturbances.
  • Preventive measures against stink bug infestations include recognizing signs of infestation, like stink bugs clustering on the sunny side of the house or the discovery of dead stink bugs, and seeking professional pest control services for efficient inspection and management. The learned knowledge about stink bug’s life can aid in putting up successful preventive strategies.

How Long is The Average Lifespan of a Stink Bug?

What Is the General Lifespan of A Stink Bug?

dead tink bug
Dead stink bug

A typical stink bug lives on average for approximately 6 to 8 months. However, this figure can fluctuate depending upon various factors such as their species and the surrounding environmental conditions.

Do Different Species of Stink Bugs Vary in Lifespan?

Yes, the lifespan does indeed vary among different stink bug species. Academic sources shed light on this quite remarkably. For instance, the University of Arkansas shares that the adult rice stink insect, found predominantly east of the Rocky Mountains, has an approximate lifespan of 50 days.

On the other hand, the adult conchuela stink bug, majorly located in New Mexico and Texas, lives over a span of 70 days as per research done by New Mexico State University. Noticeably, Kudzu bugs, spread across North America, have a comparatively shorter life duration spanning 6 to 12 weeks, and the list goes on.

How Does the Lifespan of Stink Bugs Compare to Other Bugs?

Stink bugs fit rather comfortably within the general insect lifespan spectrum. While their lifespans may seem short when compared to larger insects like cockroaches and termites that can live for several years, it is certainly longer than many types of flies or mosquitoes which typically live for a few weeks or less.

How Does Sexual Activity Affect the Lifespan of Stink Bugs?

An intriguing facet of stink bug biology is their sexual behavior. Data gathered from research titled ‘Sexual Activity and Longevity of the Southern Green Stink Bug‘ reveal curious insights into female stink bug lifespans.

What Is the Lifespan Difference Between Mated and Unmated Stink Bugs?

The study mentioned earlier shows that unmated adult males and females live longer by 6 and 2 times respectively in comparison to their mated counterparts.

How Long Do Virgin Female Stink Bugs Live Compared to Mated Females?

The average lifespan of virgin females appears to be near 60 days, whereas mated females live almost half as long, having a life span close to 30 days.

What Is the Life Cycle of a Stink Bug?

To understand the lifespan of stink bugs, it’s crucial that we delve deeper into their life cycle comprehensively. The stink bug life cycle can be broadly divided into three stages: egg, nymph, and adult. Bear in mind that it typically takes around 30 and 60 days for stink bugs to complete their life cycle. However, the length also varies between different species.


Mating between stink bugs begins with the arrival of warmer weather, generally in the spring. Following mating, females start to deposit clusters of eggs, usually on the underside of leaves. The eggs hatch in about four to five days, thus commencing the nymph stage.


Post hatching, stink bugs enter the nymph stage, starting at the first instar stage. Nymphs undergo five such developmental phases or instars, changing their skin in an entomology process known as molting. This allows them to grow.

It’s worth noting that immediately following hatching, nymphs tend to be bright yellow, red or orange, but darken as they age. Each instar lasts roughly one week, during which, nymphs shed their old skin, growing larger each time. At the final instar stage, the nymphs develop wings and reach about 12 millimeters in length.


As adults, stink bugs spend their time feeding on plant materials, mating, and looking for warm places to survive the cold winter months. Humans particularly come into contact with these bugs as they seek comfortable winter shelters. After arriving at adulthood, stink bugs can mate within two weeks and females begin to lay eggs.

How Do Stink Bugs Survive in Different Climates?

It is interesting to see how stink bugs have adapted to handle different weather conditions. An essential part of this adaptation involves a state of dormancy during the winter, known as diapause.

What Is Diapause and Why Is It Essential for Stink Bugs?

Diapause is an important survival strategy for stink bugs facing cold weather. During diapause, their metabolism slows down significantly, and they cease eating or reproducing, enabling them to survive through the winter.

However, not all stink bugs enter diapause. If the winter isn’t harsh, as in warmer climates, stink bugs may continue to remain active throughout the year!

Where Do Stink Bugs Typically Hide During Diapause?

Stink bugs, while in diapause, tend to hide in quiet and hard-to-reach corners of houses where they are unlikely to be disturbed. These spots could range from spaces under appliances and furniture to hidden realms behind walls and floors or even attics.

What Happens If a Stink Bug Wakes Up Early from Diapause?

If a stink bug wakes up too early from diapause, it may be detrimental not just for the bug, but for homeowners too. This premature awakening could be a result of the bug running low on nutrients and depleting its stored food too quickly. As a consequence, its overall lifespan could be negatively affected. Moreover, it could lead to them scouting for food indoors during the latter part of winter, causing more nuisances for house residents.

What Are the Signs That a Diapause Has Ended?

The easiest way to tell if a stink bug’s diapause has ended is by observing their activity. When the diapause period concludes, typically signaled by increased temperatures and daylight in spring, adult stink bugs leave their overwintering spots in search of food. Hence, increased stink bug activity indoors or in your garden could be an indicator of the diapause period’s conclusion.

Another indication might be the discovery of dead stink bugs in certain parts of your house, as not all bugs may survive the winter months. These piles are generally found in warmer areas of your house, such as spots exposed to sunlight, as they tend to emerge collectively from cover to seek warmth if they sense impending death.

How Do Warm Climates Affect the Lifespan and Reproductive Cycles of Stink Bugs?

In warmer climates, several generations of stink bugs may be possible to occur within a single year. In contrast, in most parts of North America, certain species like the brown marmorated stink bugs commonly have one to two generations per year. Stink bugs that reside in warm, humid climates with an abundance of food tend to have longer lifespans compared to those that live in cold, dry climates with less food.

Indeed, the environment plays a significant role in determining the lifespan of stink bugs, influencing vital aspects like their food availability, reproduction cycles, and survival strategies.

What Are the Factors Affecting Stink Bug Lifespan?

Understanding the lifespan of stink bugs necessitates a look at the factors that influence their longevity.

  1. Environmental Conditions: Environmental conditions like temperature, humidity, and weather play a pivotal role in a stink bug’s lifespan. They generally live longer in warm and humid surroundings.
  2. Availability of Food: The quantity, quality, and type of food available can considerably impact the lifespan of stink bugs. These pests feed mainly on fruits, crops, and vegetables. A shortage in their food supply can significantly reduce their lifespan.
  3. Predators: Natural predators such as birds, spiders, and other insects can lower the life expectancy of stink bugs. An abundance of predators in their environment often equates to a shorter lifespan.
  4. Pesticides and Chemicals: The application of pesticides and insecticides can drastically affect the lifespan of stink bugs. These substances can either cause immediate death or substantially cut down their lifespan.
  5. Diseases and Parasites: Like other insects, stink bugs can be affected by various diseases and parasites, which may shorten their lifespan.
  6. Species: Different stink bug species have varied lifespans. For example, the brown marmorated stink bug (BMSB) lives approximately 6-8 months, while the southern green stink bug’s completes its life cycle in approximately 65-70 days, which is roughly two to two and a half months.
  7. Reproduction: Reproduction can take a considerable amount of energy and resources. Female stink bugs, in particular, tend to have shorter lifespans due to the stress of reproduction.
  8. Stress and Disturbances: Similar to other organisms, stress can shorten a stink bug’s lifespan. This includes disturbances to their habitat, such as human activity or environmental changes.

What Measures Can Homeowners Take Against Stink Bug Infestations?

When faced with the prospect of a stink bug infestation, understanding their behaviors and lifecycle can aid in developing effective preventive strategies and curb their populace within your property.

What Are Some Common Signs of a Stink Bug Infestation?

Common signs of a stink bug infestation include sighting these bugs frequently within your homes, particularly during spring or fall. During these times, they might also be seen clustering on the sunny side of the house. Another clear sign is the presence of their distinctive odor. Discovering piles of dead stink bugs in warm areas of your house could also indicate a prior winter infestation.

How Can Pest Control Services Like Orkin Help Homeowners in Managing a Stink Bug Infestation?

Professional pest control services like Orkin can prove highly beneficial in efficiently tackling a stink bug infestation. Trained experts can provide comprehensive services including thorough inspection, identification, and treatment plan development tailored to your needs. Moreover, they can offer valuable advice on preventive measures to minimize future infestations.

Frequently Asked Questions (FAQs)

What Species of Stink Bugs Are the Longest Living?

The Brown Marmorated Stink Bug is known to live up to 8 months under favourable conditions, making it one of the longest living stink bug species.

How Long Can Stink Bugs Live in Your House?

If a stink bug enters your home looking for shelter, it can potentially live up to 6-8 months. This depends on the species and the conditions within your home.

How Long Do Stink Bugs Live Without Food?

When a stink bug is deprived of food, it will enter a state of dormancy. During this time, the stink bug’s metabolism will slow down and it will not need to eat. This sort of hibernation is called diapause as discussed above, during which they considerably slow down their metabolic processes, allowing them to survive for extended periods without food.

If they are not hibernating, stink bugs can only survive for up to 4 months without food.

In general, stink bugs can live without food and water for up to 30 days.

It’s important to note that these durations can vary based on the species of stink bug and environmental conditions.

When Will Stink Bugs Go Away?

Stink bugs typically become less active or go into diapause during the winter months. However, you might start seeing them again during spring when the temperature begins to rise.

Do Stink Bugs Stink When They Die?

Yes, when a stink bug dies, it can emit the same foul odor that it uses as a defense mechanism when threatened. This is due to the release of the chemicals stored within their bodies.


The life of a stink bug may not be very long, but it sure is eventful. Environmental conditions, access to food, reproduction, and several other factors influence the average stink bug’s lifespan. Understanding the lifecycle of stink bugs and the factors affecting their lifespans can assist homeowners tremendously in preventing and managing infestations. If you’re dealing with a stink bug infestation, turning to a professional pest control service ensures accurate identification and effective treatment. Additionally, it’s important to remember that prevention is always better than treatment. By eliminating their food sources and sealing entrances into your home, you can get a step ahead in preventing these unwelcome guests from settling down.

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