What chemical is commonly used to kill wax moths?

Para dichlorobenzene is commonly used to kill wax moths due to its effectiveness as a fumigant. Wax moths are a significant pest in beekeeping, often infesting stored equipment and combs. Para dichlorobenzene works by subliming into a gas that can penetrate the wax and effectively target the larvae and adult moths, leading to their death. This compound is favored for its ability to provide long-lasting protection when applied correctly, making it a common choice among beekeepers looking to manage these pests.

Other substances listed, while they have their specific applications in pest control or other roles in beekeeping, are not primarily used against wax moths. For instance, formic acid is primarily used in controlling Varroa mites, while acetic acid and boric acid have different purposes and are less effective against wax moths specifically.