Deltamethrin vs Bifenthrin Insecticides

Deltamethrin vs Bifenthrin

In the insecticide world, there are two main types of products: those that contain deltamethrin, and those that contain bifenthrin. Both of these ingredients are effective at killing pests, but which one is better? In this blog post, we will compare and contrast these two ingredients to help you decide which one is right for you.

Bifenthrin vs Deltamethrin Table

There are a few reasons why you might want to compare deltamethrin and bifenthrin. Maybe you’re not sure which one is right for your needs, or maybe you’re curious about how they stack up against each other. No matter what your reason, we hope this table will help you make an informed decision!

Delta Dust

Bifen I/T

Active ingredient Deltamethrin 0.05%

Active ingredient is Bifenthrin 7.9%

Have Odor


Powder Form

Liquid Form

Not Exactly Kills on Contact

Kills On contact (Yes)

1 lb. could covers about 2,000 sq.ft.

1 lb. could covers about 2,200 sq.ft.

Kills Ants, Bed Bugs, Boxelder Bugs, Cockroaches, Crickets, Fleas, Firebrats, Silverfish, Termites & more

Target pests: over 75 different pests

DeltaDust is a 100% waterproof dust

 Long-lasting residual for up to 5 years

Why Compare?

Both of these chemicals work well at killing insects, but they have their unique advantages and disadvantages. We will compare and contrast deltamethrin and bifenthrin so that you can decide which one is right for your needs!

Deltamethrin-based products such as Suspend SC, Talstar Pro and Archer IGR offer long residual life. Bifenthrin-based products such as Ortho Bug-B-Gon, Bifen IT and Temprid SC offer a broad spectrum of pest control.

The main difference between Deltamethrin and Bifenthrin is that Deltamethrin is more effective against flying insects while bifenthrin is more effective against crawling insects. Deltamethrin is a neurotoxin while bifenthrin is not.

The other advantage to using a Bifenthrin-based product such as Bifen IT is that it does not have much of an odor. This is compared to a Deltamethrin-based product such as Suspend SC, which does have a slight odor.

Target Pest

If you are looking to treat pests that are mostly crawling, like Spiders, Mosquitoes, Cockroaches, Ticks, Fleas, Pillbugs, Chinch Bugs, Earwigs, Millipedes and Termites, then a bifenthrin-based product will be your best bet.

If you are looking to treat pests that are mostly flying, like Ants, Bedbugs, Cockroaches, Fleas, Silverfish, Scorpions, Sowbugs, Millipedes, and others, then a deltamethrin-based product will be your best bet.

For Use In

Bifenthrin is for use in and around homes, apartments, hospitals, nursing homes, schools, office buildings, warehouses and other commercial and institutional buildings. It can be used both indoors and outdoors.

Deltamethrin is for use in and around agricultural buildings such as barns, stables, hog pens, poultry houses; in and around residential buildings such as homes, apartments, mobile homes; in greenhouses; on lawns, turf, trees and ornamentals. It can be used both indoors and outdoors.


Bifenthrin-based products can be used to control pests in buildings and structures. You should use 0.33 to 1 fluid oz. per gallon of water when spraying the product. You will need 1 gallon of finished solution to cover 1,000 square feet when using a hand pump sprayer.

On the other hand, Deltamethrin-based products such as Suspend SC can be used for both indoor and outdoor applications. You’ll need to use about 2-3 grams of DeltaDust per square yard (or 0.5 lbs per 1000 square feet) when applying the product.

How to Use

Bifenthrin-based products must be mixed with water and applied with a sprayer. You should shake the product well before mixing and apply it in a fine mist.

Deltamethrin-based products can also be mixed with water, but they can also be used as dust or bait. When using as bait, apply the product to cracks and crevices. If used as dust, apply the product to areas where pests are active or likely to travel.

How does Deltamethrin work

Deltamethrin is a pyrethroid, a synthetic chemical, and effects of the natural pesticide pyrethrin. It’s a broad-spectrum pesticide used both inside and outdoors. It kills target insects through injection or direct contact by disturbing the average production and performance of signals within the insect’s nerve system.

Deltamethrin Safety

It is only a mildly toxic chemical and should not be applied directly to water. With this, caution must also be taken while spraying outdoors because it is highly toxic to kill pests, bugs, and insects.


We hope this table has helped you compare and contrast deltamethrin and bifenthrin! If you still have questions about which product is right for you, please contact your local cooperative extension office or certified pesticide applicator.

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