Does WD-40 Kill Wasps?: Separating Fact from Fiction

by Derrick | Last Updated: February 23, 2023

Are you tired of pesky wasps invading your home? Have you tried all the traditional solutions, but nothing seems to work? If so, you may want to consider using WD-40 to eliminate wasps . This blog post will discuss the pros and cons of using WD-40 to kill wasps.

What is WD-40 (For Those Not Familiar)

WD-40 is a multi-purpose lubricant and penetrating oil widely used for household and industrial tasks. It creates a thin film on the surface of whatever it is applied to, which protects against rust, moisture, and corrosion. WD-40 also has properties that make it effective at repelling wasps and other insects. The lubricant has a strong scent which wasps dislike, so when sprayed in areas where they have been spotted, it will usually be enough to deter them from returning.

How Does WD-40 Kill Wasps?

WD-40 is a popular solution for eliminating wasps and can be used in various ways. It works by suffocating the insects, making it a fast and effective method of extermination. The spray should be applied liberally to cracks, crevices, and any previous or current wasp nests. Additionally, it can prevent wasps from building nests again, giving you an extra layer of protection.

As with any pest extermination method, it’s essential to take proper safety precautions and follow the instructions on the WD-40 packaging. WD-40 can give you an easy and affordable way to eliminate wasps for good.

Using WD-40 to Stop Wasps from Nests

Spraying WD-40 around areas where wasps have previously built nests is an excellent way of deterring them from returning. Applying the WD-40 liberally underneath gutters, eaves, and anywhere else wasps have been spotted effectively stops them from coming back. WD-40 has some properties that make wasps suffocate and avoid it, meaning they won’t return to the same area.

Of course, spraying WD-40 alone will not completely stop a nest from forming; it’s best used with other methods, such as regular inspections or other products designed for killing and repelling wasps.

How to Use WD-40 to Kill Wasps

Using WD-40 is an effective method for managing wasp populations. To eliminate wasps, liberally apply WD-40 to the area of any known previous nest sites and underneath gutters, eaves, and other visible locations.

The spray should be effective in rapidly suppressing the insects. If the wasps come back after being sprayed, removing them immediately before they increase in numbers is essential.

Exercise caution when using WD-40, as inhaling or ingesting it may pose risks. Apart from utilizing WD-40 to eliminate wasps, various other strategies for addressing this problem exist, which include professional extermination services or organic treatments.

When to Use WD-40 to Kill Wasps

For those looking to use WD-40 to kill wasps, the best time is when the wasps are building a nest. While it doesn’t kill them instantly, WD-40 works surprisingly fast and can suffocate the insects in a short amount of time. However, if they do return successfully, it’s best to exterminate them before they have a chance to multiply. Before using WD-40, it’s essential to spray the location of previous wasp nests and apply the product liberally underneath gutters and eaves. This will help prevent future contamination and stop the wasps from returning.

Precautions When Using WD-40 to Kill Wasps

When using WD-40 to kill wasps, it is essential to take certain precautions. WD-40 is a potent chemical that should be used in a well-ventilated area. It is also important to keep away from children and pets at all times. In addition, WD-40 should not be used on plants or other areas where it could harm. Avoid direct contact with the skin when spraying the wasps , as it can cause irritation or burning. It is also essential to read and follow the instructions on the WD-40 can carefully before use. Finally, when using WD-40 to kill wasps, keep the area clear of people and animals until the spray dries completely.

Other Methods of Killing Wasps

Aside from using WD-40, there are other methods of killing wasps. Insecticides can be used to kill wasps and their nests. They can be applied directly to the nest or the wasps themselves. There are also wasp traps that can be used to capture and kill wasps. These traps lure wasps in with scent and trap them in a container.

Read the instructions carefully before attempting these methods, as they can be dangerous if used incorrectly. It is also important to note that insecticides and traps should only be used on an active nest. If the nest is abandoned, these measures are unnecessary and could harm the environment more than help.


In conclusion, WD-40 can be an effective way to eliminate wasps in and around your home. It is an easy and cost-effective solution for those seeking an alternative to traditional insecticides. It is also relatively safe to use as a precaution against wasps nesting in and around your home. It is important to remember that it should not be used as the sole method of killing wasps, as other methods may be necessary in some instances. Finally, if using WD-40 as a wasp deterrent, follow the manufacturer’s instructions closely and take necessary precautions when spraying the area.