7 Best Insecticides For Carpenter Bees 2026 in the United States

The Spectracide Terminate Termite & Carpenter Ant Killer is designed for those dealing with wood-destroying insects like carpenter bees, termites, and carpenter ants. It features Lambda-Cyhalothrin as the active ingredient, known for its effectiveness in quickly eliminating these pests. The product's ready-to-use (RTU) spray formulation makes it convenient for immediate application without the need for mixing, which is a significant benefit for users looking for straightforward pest control solutions.

The non-staining clear formula is an added advantage, as it leaves no residue or odor, making it suitable for both indoor and outdoor use without causing damage to surfaces or creating unpleasant smells. This versatility is complemented by a 9-month residual effect indoors, providing long-lasting protection against insects. The AccuShot sprayer enhances ease of use, allowing for precise and continuous spraying, which can be particularly helpful for targeting specific areas where carpenter bees and other insects are active.

However, the product’s weight (12.26 pounds) and size might make it somewhat cumbersome to handle, especially for those who need to cover large areas. Safety-wise, being an EPA-approved product offers a level of assurance, but it is still necessary to follow proper handling instructions to avoid potential health risks. This insecticide is a solid choice for homeowners looking to control carpenter bees and other wood-destroying insects, but it may not be the most convenient option for extensive treatment areas due to its weight and handling.

BioAdvanced Carpenter Ant, Termite and Insects Killer Plus is a versatile insecticide that targets over 60 different pests, including carpenter bees. Its active ingredient works effectively to kill insects on contact. Being a concentrate formulation, it allows for flexible application both indoors and outdoors, covering areas like lawns, foundations, sinks, and storage spaces. This broad-spectrum use can be very convenient for users who need comprehensive pest control solutions around their home and garden.

The EPA approval adds a layer of safety and reliability, ensuring it meets regulatory standards for pest control products. However, it is not available for sale in MA and NY, which could limit access for some users. The residual effect of the product is not prominently highlighted, which might be a concern for users looking for long-term pest control.

Additionally, as a concentrate, it may require careful handling and mixing, which might be less convenient for those unfamiliar with these types of products. BioAdvanced provides a robust solution for carpenter bee infestations, but users should be mindful of its availability and the complexity of its application.

The 1 LB Delta Dust Insecticide, paired with the JT Eaton Hand Duster, is designed to tackle pests like carpenter bees, wasps, and various other insects. Its active formulation in powder form allows it to be easily applied to wall voids, cracks, and hard-to-reach areas, making it versatile for both indoor and outdoor use. Users will likely appreciate the convenience of the hand duster, which simplifies the application process—just fill it halfway with dust and reapply the lid.

A notable strength of this insecticide is its broad spectrum of target pests, extending beyond carpenter bees to bedbugs, fire ants, and even millipedes. This makes it a good multipurpose choice for those dealing with a variety of pest problems. The product’s residual effect is an advantage as it continues to work over time, reducing the frequency of reapplication.

In terms of safety, while the product is effective, users should exercise caution during application, as direct contact with the powder can be hazardous. It's important to follow safety instructions carefully to avoid inhalation or skin contact. The application is straightforward, but some users might find handling the powder messy, which could be a slight inconvenience. Given its versatility and ease of use, this insecticide is well-suited for homeowners wanting a reliable solution for carpenter bees and other pests. It might not be the first choice for those seeking a highly specialized carpenter bee treatment or for environmentally-conscious users looking for low-toxicity options. With a commendable user rating of 4.2 out of 5 stars, it seems to satisfy a majority of its users in terms of performance and effectiveness.