Sevin Dust vs Diatomaceous Earth for Flea

Flea infestations can be a frustrating and persistent problem for pet owners. Regarding controlling fleas, Sevin Dust and Diatomaceous Earth are two popular options. Both have their own unique benefits, but which one is right for you? Let’s take a closer look at these two products.

Diatomaceous Earth vs Sevin Dust Table

Comparing Sevin Dust and Diatomaceous Earth is essential because flea infestations can be a real struggle for pet owners.

Sevin Dust


Active Ingredient Carbaryl 5%

Active Ingredient Silicon Dioxide 88.25%

Outdoor Use Only

Both Indoor & outdoor Use Only

Pet Safe but follow as Directed on Label

Pet Safe but follow as Directed on Label

EPA Registered Product

EPA Registered Product

Comes with 3 Pack

Comes with 10lbs Pack

You can use in Fruits, Vegetables, Ornamental Plants and Home Lawns

You can use in Cracks, Crevices and Voids where insects travel.

0.5 - 1.0 Lbs. Per 1,000 Sq. FT. If You Are Using Vegetable Gardens.

100% certified organic by the organic minerals review Institute

It kills Fall armyworm, Japanese beetle, flea beetles, leaf hoppers stink bugs, raspberry maggot, ticks, earwigs, ants and others

It kills Ants, Cockroaches, Earwigs, Fleas, Mites, Spiders, Bed Bugs and almost all other crawling insects

Active Ingredients
The primary component of Diatomaceous Earth (DE) is silica, accounting for a substantial 80-90% of the powder. This natural substance is believed to eradicate insects through dehydration or death.

On the contrary, the active component in Sevin Dust is bifenthrin, whereas Sevin Insect Killer Lawn Granules contain a mixture of zeta-cypermethrin and bifenthrin as their active ingredients. Additionally, Sevin insecticide is formulated with carbaryl, a carbamate insecticide, as its active component.

Target Pest
Both Sevin Dust and Diatomaceous Earth are effective in controlling flea infestations. However, Sevin Dust is often marketed as a multi-purpose pesticide, so it can be used to control other pests as well, such as ants and spiders. On the other hand, Diatomaceous Earth is primarily used for flea control.

How it Works
Sevin Dust is highly effective and fast-acting, but it may require more frequent reapplication. Diatomaceous Earth is also effective, but it may take longer to see results. However, it remains effective for several months after application and may require less frequent reapplication.

How to Use?
Sevin Dust is available in various forms, including dust, spray, and granules, making it easy to use in different environments. Diatomaceous Earth is typically applied as dust or powder and can be sprinkled directly on carpets, furniture, and other areas where fleas are present.

Fight fleas with Sevin insecticides! Start by reading the product label and following instructions. Sprinkle Sevin dust over the affected area, or water your lawn before applying for best results. Sevin granules not only kill fleas and other insects but also protect your yard for up to 3 months.

Use a drop spreader to apply evenly, then water in. If using the spray bug killer, dilute the concentrate according to instructions, mix thoroughly, then spray evenly over the area.

Want to get rid of fleas in your home or yard using Diatomaceous Earth? Start by locating areas where you’ve seen fleas or where your pets spend a lot of time, such as furniture, pet beds, floors, cracks, under sinks, and gardens. Vacuum-infested areas, then sprinkle Diatomaceous Earth powder in a thin, uniform coating over the surfaces you want to treat.

Work it into carpets with a broom and use a duster or puffer bottle for hard-to-reach areas. Leave the powder for a day or two, then vacuum up the dead fleas. Repeat the process once a week for 3-4 weeks to eliminate all eggs, adults, and nymphs.

Our Observation
In our experience, both Sevin Dust and Diatomaceous Earth are effective in controlling flea infestations. Sevin Dust and Diatomaceous Earth (DE) are both effective in killing bugs such as fleas, ticks, earwigs, ants, and other pests.

Sevin Dust is a synthetic chemical called carbaryl which attacks an insect’s nervous system, while DE is a natural mineral composed of fossilized algae. Studies have shown that DE is more effective than Sevin Dust in killing fleas.

The main difference between Sevin Dust and Diatomaceous Earth is in the active ingredients. Other than this, Sevin Dust can only be used outdoors only, but Diatomaceous Earth can be used in outdoors and indoors.

In conclusion, choosing between Sevin Dust and Diatomaceous Earth for flea control will depend on your specific needs and preferences. If you want a quick solution that is effective but may have some risks, Sevin Dust may be the right choice for you. 

However, if you prefer a safer, more natural option that is less toxic, Diatomaceous Earth may be a better fit. Regardless of which product you choose, it’s important always to follow the instructions carefully and take the necessary safety precautions to protect yourself, your pets, and the environment. 

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