When do carpenter bees go away? Tips to keep them from sticking around

Carpenter bees are often considered a nuisance due to their drilling and burrowing activities. These bees are known to drill holes in wooden structures, causing structural damage that can be costly to repair. So, when do carpenter bees go away? And what are some tips you can use to keep them from sticking around?

When do carpenter bees go away?

Carpenter bees are common throughout the United States, and their seasonal behavior can vary depending on your location. For most regions, carpenter bees are active from early spring through late summer. Typically, carpenter bees go away in the fall months, taking a long break during the winter season.

However, it’s worth noting that the timing of carpenter bee activity can be influenced by factors such as temperature and climate. In warmer regions, carpenter bees may remain active for a longer period, while in cooler regions they may be less active during the summer months.

The life cycle of carpenter bees

To better understand when carpenter bees go away, it’s helpful to know their life cycle. Carpenter bees typically have a one-year life cycle, with new generations emerging each spring. The life cycle of a carpenter bee consists of four stages: egg, larva, pupa, and adult.

  • Egg stage: Adult female carpenter bees lay their eggs in the tunnels they drill into wood.
  • Larva stage: The egg hatches into a larva, which feeds on the pollen and nectar provided by the female bee. Carpenter bee larva develop within the tunnels and can cause significant structural damage to the wood.
  • Pupa stage: The larva eventually pupates within the tunnel, transforming into an adult bee.
  • Adult stage: The adult bee emerges from its tunnel and begins its life cycle, repeating the process by mating and laying eggs in new tunnels they drill.

Given this life cycle, carpenter bees are often most active in the spring months when new generations are emerging. However, they can continue to be active throughout the summer months as they build new tunnels and lay eggs for the next generation.

Tips to keep carpenter bees from sticking around

If you’re dealing with carpenter bees, there are several measures you can take to prevent them from damaging your property and sticking around. Here are some tips to consider:

Fill and seal holes

The first step in preventing carpenter bees is to ensure that any existing tunnels are filled and sealed. This will not only protect your property from further damage, but it will also discourage carpenter bees from nesting in the same location in the future.

You can use a wood filler or putty to fill the holes and then smooth it over with sandpaper to match the surrounding surface. Be sure to use a sealant, such as paint or varnish, to help protect the surface from further damage and to discourage bees from drilling new tunnels.

Use repellents

You can also use natural repellents to keep carpenter bees away from your property. Some of the most effective natural repellents include citrus oils, eucalyptus oil, and cedarwood oil. You can apply these oils to areas where carpenter bees are likely to drill, such as wooden decks, eaves, and outdoor furniture.

Another option is to use a commercial bee repellent spray, which can be purchased from most home improvement and garden centers. These sprays typically contain natural ingredients, such as peppermint oil and cinnamon oil, that can deter carpenter bees from nesting in wooden surfaces.

Use insecticides

If you’re dealing with a large infestation of carpenter bees, you may need to use an insecticide to eliminate them. However, it’s important to use insecticides safely and responsibly to avoid harming other beneficial insects and pollinators.

When using insecticides, be sure to read and follow the product label carefully. Wear protective clothing and equipment and avoid spraying in areas where children and pets are present. You may also want to consider hiring a professional pest control service to handle any large infestations of carpenter bees.

Prevent future infestations

One of the best ways to prevent carpenter bees from returning is to take proactive measures to protect your property. This can include using treated or naturally resistant wood for outdoor structures or using metal or plastic alternatives. Additionally, regularly inspecting and maintaining wooden surfaces can help identify any potential problems before they become major issues.


Carpenter bees can cause significant damage to wooden structures, making it important to take steps to prevent infestations and protect your property. By understanding when carpenter bees go away and following the tips outlined above, you can keep these bees from sticking around and causing any more damage to your home or outdoor spaces.

Common Questions and Answers

  • Q: How do I tell if I have a carpenter bee infestation?
  • A: Signs of a carpenter bee infestation can include small holes in wooden surfaces, sawdust or wood shavings near the holes, and the presence of adult carpenter bees flying around wooden structures.
  • Q: How can I prevent carpenter bees from drilling into my wooden structures?
  • A: You can prevent carpenter bees from drilling into your wooden structures by filling and sealing any existing holes, using natural repellents such as citrus oils or cedarwood oil, and using treated or naturally resistant wood for outdoor structures.
  • Q: When is the best time to fill carpenter bee holes?
  • A: The best time to fill carpenter bee holes is in the fall or winter months, when the bees are less active and less likely to return to the same locations.
  • Q: Can carpenter bees sting?
  • A: Yes, female carpenter bees can sting, but they are not aggressive and will usually only sting if provoked or threatened.


Leave a Reply

Your email address will not be published. Required fields are marked *