When Is Stink Bug Season?

Bill Swank
Last updated: February 27, 2024

Stink bugs, known for their disturbing presence in homes and damaging impact on crops, are a common pest many of us encounter. Despite their notorious reputation, many of us aren’t exactly familiar with their behavior patterns, especially when it comes down to when they’re most active. So, when exactly is the stink bug season?

  • Stink bugs are seasonal pests that are most active from spring to early fall in temperate climates. Their increased activity in warmer conditions while going into dormancy during fall and winter aligns with nature’s seasons.
  • Temperature and weather significantly influence stink bug activity. Rising temperatures lure them out of dormancy and spur feeding and mating behaviors. An abrupt warm spell during winter can also awaken them temporarily.
  • The stink bug season can differ based on geography and climate. Warmer climates might face the issue of active stink bugs year-round, while colder climates might see a narrow activity timeframe.
  • Consequently, precautions are necessary during the stink bug season, especially in regions where they pose significant threats. These include physical barriers- sealing off entry points to your homes to avoid their invasions.
  • Mitigating stink bug infestations requires methods like sealing off openings, reducing lighting, setting traps, regular vacuuming, and seeking help from pest control services for ongoing infestations.

Table of Contents

What Is the General Activity of Stink Bugs?

Stink bugs are certainly seasonal creatures. They emerge during spring, mate, reproduce, and feed up until late fall. These pests are particularly active during warmer periods, typically from March to September. Their ability to adapt means that during warmer winters, their activity can well extend into the colder months.

Are stink bugs seasonal?

Yes, stink bugs are indeed seasonal pests. They thrive in warmer temperatures, which means they are more prevalent during spring, summer, and early fall.

When is stink bug season?

Stink bug season generally starts in March and lasts until September. However, this can vary depending on geographical location and climate. In warmer climates, stink bugs may be active year-round.

What season do stink bugs come out?

Stink bugs become active in spring as temperatures start to rise. This is the time when they come out from their overwintering spots and start their search for food and start mating and reproducing.

When do stink bugs go into diapause or dormancy?

As soon as temperatures start to drop, typically around late fall to winter, stink bugs go into diapause, which is a state of deep sleep or dormancy. During diapause, stink bugs do not feed, mate, or even move much.

At what month do stink bugs go away?

Stink bugs generally become less active and go into diapause from late fall, which could be around October or November, depending on the location and weather.

When Do Stink Bugs Become Most Active?

Believe it or not, stink bugs aren’t just active all day. They stick to a specific schedule tuned to temperature changes throughout the day. Understanding their activity patterns plays a crucial part in dealing with these pests, effectively ensuring that our protective measures are well-timed.

When are stink bugs most active?

Stink bugs are most active during daylight hours when temperatures are warm. They also tend to be more active during the earlier and later parts of the day when it’s not too hot.

At what time of day do stink bugs come out?

Stink bugs tend to come out during the early morning and late afternoon, when temperatures are cooler compared to midday.

Do stink bugs come out at night?

Stink bugs are generally not nocturnal creatures and are less active during night time. However, they may still move around if the nighttime temperature is warm enough. Additionally, they are attracted to light, so it is a good idea to limit night-time lighting to reduce their attraction to your home.

What factors determine the start and end of the stink bug season?

The stink bug season largely depends on weather conditions, particularly temperature. Rising temperatures in the spring signal stink bugs to come out from their overwintering spots, while dropping temperatures in fall typically initiate their dormancy period. Geographic location and climate also play a part, with warmer areas experiencing longer stink bug seasons.

When does stink bug season typically start?

The stink bug season typically starts around March when temperatures begin to rise in most climates.

When does stink bug season typically end?

The stink bug season generally ends with falling temperatures in the late fall months of October or November. However, sudden warm spells during winter can trick stink bugs into temporarily resuming activity.

How Does Temperature and Weather Influence Stink Bug Activity?

Temperature plays a critical role in dictating the life cycle of stink bugs. From activating them out of their dormancy to their feeding habits, warmer temperatures are a green signal for these bugs to start their life cycle.

How do rising temperatures during winter affect stink bug activity?

A sudden rise in temperature during winter can confuse stink bugs and make them believe it’s spring. They may come out of their overwintering spots and become active, mistakenly thinking it’s time for them to feed and reproduce.

At what temperature do stink bugs die?

Stink bugs can survive at temperatures as low as 20 degrees Fahrenheit, but prolonged exposure to temperatures below this can likely be fatal. On the other hand, extreme heat (around 100 degrees Fahrenheit or higher) can also kill stink bugs.

Does cold weather kill stink bugs?

Cold weather itself doesn’t often kill stink bugs. They’ve adapted to survive the freezing temperatures by finding warm spots to overwinter or hibernate during the chillier months. However, extended periods of extremely cold weather without proper shelter can indeed cause their demise.

Why do stink bugs come out during a warm snap in winter?

Stink bugs can be fooled by a sudden warm snap in winter. This temporary increase in temperature can make the bugs think that spring has arrived early. As a result, stink bugs emerge from their hiding spots and start seeking food and mates.

Are stink bugs more active during specific temperatures or conditions?

Yes, stink bugs are more active during warmer conditions. They thrive in temperatures between 70 and 85 degrees Fahrenheit, which is generally around spring to early fall.

When are stink bugs commonly found during cold months?

During cold months, stink bugs are typically found hiding in warm, secluded places. They tend to enter homes in search of warmth, hiding in the walls, attic, or other secluded spots. So, even in chilling winters, don’t be surprised if you find them lounging around in your cozy homes!

How Do Geographic Locations and Climates Impact Stink Bug Season?

Where you live plays a significant role in determining your battle with stink bugs. The variances in seasons around different geographical locations change the start and end times of their active seasons drastically.

Does stink bug season vary based on location and climate?

Indeed, the stink bug season can vary based on location and climate. Warmer climates might face the issue of active stink bugs year-round, while colder climates might see a shorter activity window.

When is the stink bug season in the US?

In the United States, stink bug season typically starts in March and can last until late September. However, states with warmer winter climates might see stink bugs remain semi-active throughout the winter months.

When is the stink bug season in Australia and New Zealand?

In Australia and New Zealand, the high-risk period for stink bugs is from September to April. This coincides with the spring and summer seasons in these countries when temperatures are warmer.

Are stink bugs in warmer climates active year-round?

Yes, in warmer climates, or places where winter temperatures aren’t necessarily freezing, stink bugs may remain active year-round. However, they are less active than in the warmer seasons and their population might not be as high.

What Precautions and Measures are Taken During Stink Bug Season?

Given the nuisance that stink bugs pose, precautions and active measures are employed during stink bug season, especially in regions where they pose a significant threat to agriculture and home peace.

Why is there a high-risk period of stink bugs from September to April in places like Australia and New Zealand?

In Australia and New Zealand, the period from September to April marks spring to autumn. These months typically experience warmer weather, creating an ideal environment for stink bugs to thrive, leading to a high-risk period of stink bugs. This can pose significant biohazard and agricultural threats in the said countries.

Are there measures being done to stop the spread of stink bugs in these countries?

Yes, seasonal measures are in place to halt the spread of stink bugs, especially in countries where stink bugs pose a significant concern. These measures range from setting up tight import conditions and restrictions to seasonal measures such as fumigation of high-risk goods manufactured or shipped in target risk countries.

Why Do Stink Bugs Invade Homes and Other Structures?

As temperatures start to drop during fall, stink bugs start looking for shelter for the winter season. Homes and other structures provide them with warmth, protection from predators and harsh weather, making them an ideal location for overwintering.

Why do stink bugs come out in the fall?

Temperatures start to drop in the fall, signaling stink bugs to start preparing for winter. This ‘preparation’ typically involves finding a warm place to stay, leading to an increase in their activity as they move about in search of a good location.

Why do stink bugs become a concern for homeowners during fall?

Stink bugs are seeking shelter during fall, and homes offer an ideal place for overwintering. Consequently, homeowners often notice an increase in stink bugs during this period, making them a concern as they intrude on living spaces.

Are there risks associated with stink bugs inside homes?

While stink bugs do not bite or transmit diseases to humans, they can still be a nuisance due to the unpleasant smell they emit when threatened or crushed. Also, although they do not cause structural damage, having a large number of stink bugs within your home can be distressing and bothersome.

Do they cause structural damage or harm to stored products?

No, stink bugs do not cause structural damage to buildings nor do they harm stored products. During the winter months, they enter a dormant stage where they do not feed or reproduce.

How do homeowners typically respond to stink bug invasions?

Homeowners may respond to stink bug invasions by using various methods of stink bug control, which may include mechanical methods (like handpicking or vacuuming), using traps, or contacting pest control services. Sealing off entry points such as cracks or openings can also prevent future invasions.

How Has the Stink Bug Season Evolved Over Recent Years?

Stink bug seasons and their behavior are dynamic, much like the pests themselves. Changes in climate, introducing new stink bug species in different locations, and an increase in human-insect interaction with urban sprawl have influenced their seasonal cycles.

Why have there been concerns about stink bugs from 2015 to 2022?

There is an alarming rate of stink bug spread worldwide over these years. Their potential for crop destruction and annoyance at homes has further heightened the concern.

Were there notable differences in stink bug season between 2015-2022?

Yes, there have been noticeable differences in stink bug seasons over the years. The Brown Marmorated Stink Bug, for example, has expanded its range significantly and has become more prevalent in recent years. The fluctuating weather patterns, particularly warmer winters, have also seen stink bugs emerge earlier and remain active later into the season. This change necessitates prompt and effective control measures.

When will stink bugs go away?

A common question amongst those dealing with stink bugs is: when will they go away? The answer, unfortunately, is not simple. As pesky as they are, stink bugs are also survivors. They adapt to their surroundings and, in the face of a colder season, will find shelter and go into a dormant period rather than disappearing. As weather patterns shift and winter becomes warmer in some parts, the stink bug ’season’ may be longer than expected.

How Can One Mitigate Stink Bug Infestations?

The million-dollar question remains – how can we mitigate stink bug infestations? Understanding their behavior is key, and so is knowing what attracts them and how they make their way into our homes.

When does a stink bug stink?

Stink bugs get their name from the strong, unpleasant odor they emit when they feel threatened, or when they’re squashed.

What triggers stink bug phobias in some individuals and what can they do about it?

While it’s rare, their distinctive smell, buzzing flying pattern, and simultaneous appearance in large numbers can trigger anxiety and fear in some people. If someone is experiencing a phobia, seeking help from a professional therapist can assist with treating the fear.

What are the behaviors of stink bugs in specific locations, like Alabama or Idaho?

Though stink bugs’ general behaviors remain the same, geographical and climate differences can influence their activity pattern. In Alabama’s warmer climate, stink bugs may be more active and have an extended season. In contrast, in Idaho’s cooler climate, stink bugs might have a shorter active season and go into diapause earlier.

Are there specific strategies for mitigating stink bugs in different geographical locations, like Alabama or Idaho?

While general methods of prevention – like sealing off openings and reducing lighting – can be used across all locations, some mitigation strategies might be more effective depending on the geographical region. In warmer climates like Alabama, regular monitoring and use of traps could be more effective due to the extended active season. In cooler climates like Idaho, efforts can focus on sealing homes before stink bugs seek overwintering shelters.

How to get rid of stink bug infestation?

To effectively get rid of stink bugs, you will need to adopt a combination of methods:

  • Seal Off Points of Entry: Start by sealing all cracks, gaps, and openings around windows, doors, sidings, utility pipes, behind chimneys, and underneath the wood fascia. A good quality silicone or silicone-latex caulk is ideal for this.
  • Use Stink Bug Traps: Various stink bug traps are available in the market which can help reduce the population. These traps typically contain pheromones or lights to attract stink bugs, effectively trapping them.
  • Regular Clean up: Regular vacuuming can help manage a stink bug invasion, but remember to dispose of the bag promptly to prevent the bugs from escaping.

Remember, prevention is better than cure! Regular inspection and maintenance of your property including sealing potential entrances can help in preventing a full-blown infestation.

How do companies like Orkin handle stink bug infestations?

Professionals such as Orkin Pest Control handle stink bug infestations by implementing a comprehensive approach that includes inspection, identification, and treatment, followed by a prevention plan to prevent future infestations.


Stink bug season, which typically spans from spring to early fall, demands a vigilant eye and proactive measures to prevent these pests from turning your home into their wintering shelter. With climatic and geographic differences creating variations in their active season, it’s essential to stay aware and get ahead of these pesky intruders. Regular inspection, sealing off entry points, using traps, and even seeking professional pest control help when needed, can save you from the bother of these uninvited guests. After all, understanding the enemy is the first step towards victory!

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