Cypermethrin Information and Products | How Cypermethrin Works (2024)

A popular insecticide active ingredient that is used to eliminate a broad range of common household bugs is a synthetic pyrethroid known as Cypermethrin.

Cypermethrin was initially formulated to deal with controlling infestations of bugs on commercial agricultural lands where various types of ectoparasites (ie. lice, fleas, and various mites) are notorious for infesting cattle, sheep, and poultry. This active ingredient has since been made available for general pest control. Read on to learn more fascinating facts about Cypermethrin.

What is Cypermethrin?

Cypermethrin Information and Products | How Cypermethrin Works (1)

Cypermethrin, first synthesized in 1974 and first registered by the US EPA in 1984, is a pyrethroid insecticide used to control many insect pests in households, commercial properties, and agriculture. Pyrethroids are a synthetic insecticide class that mimics the pyrethrins found in chrysanthemum flowers. Many popular pesticides use cypermethrin as an active ingredient. Cypermethrin can be formulated as wettable powders, liquid concentrates, dusts, aerosols, and granules.

These insecticides are used indoors and outdoors to control many pests like spiders, wasps, ants (including carpenter and fire ants), fleas, boxelder bugs, co*ckroaches, termites, ladybugs, scorpions, and yellow jackets.

Cypermethrin has low toxicity to humans and is safe to use around pets when it's applied as directed. Because it is a synthetic pyrethroid, it lasts longer than natural pyrethrum and provides long-lasting control and prevention.

How Does Cypermethrin Work?

Mode of Action

Cypermethrin is a pyrethroid, so its mode of action is by contact or ingestion. This ingredient interferes with the pests central nervous system, causing muscle spasms and inflicting paralysis. This creates an inability to function or eat which eventually leads to the pests death. Depending on the formulation, it can take minutes to several hours for a pests to die.

Depending on the formulation, cypermethrin will leave a long-lasting residual that will continue to control pests for up to 90 days.

Benefits of Cypermethrin

Cypermethrin products are used commonly by pest control professionals when tasked with treatment jobs for their clients. Cypermethrin products can be used outdoors in areas including parks, athletic fields and agricultural sites. You can use Cypermethrin to fight pests in food granaries, greenhouses and pet kennels. Cypermethrin also works well on ornamental trees and shrubs, eliminating pests and preventing further invasions from occurring on them.

Drawbacks of Cypermethrin

After diluting Cypermethrin based products, you should use it immediately and not store it away as the acids in water can start to degrade the active ingredient and make it more ineffective as time passes.

Cypermethrin is not a non-repellent product so there can be cases where insects will simply avoid the product and find another way to invade or continue carrying on their activities. Do not use Cyfluthrin on edible plants like fruits and vegetables.

Is Cypermethrin Safe?

Cypermethrin insecticides are safe to use when applied according to their product label instructions. While insects are vulnerable to the effects of cypermethrin, these products are much less toxic to humans and animals. Cats, however, are very sensitive to pyrethroids, so they should be kept away from treatment areas during and after application. Cypermethrin may still cause harm if ingested.

Though cypermethrin products are safe when used properly, always wear the proper personal protective equipment (PPE) when applying any insecticides and keep them out of reach of any children or pets. Wear as much coverage as you need to avoid direct skin contact and a respirator or other facial covering to avoid inhalation.

How to Use Sylo Insecticide

Cypermethrin Information and Products | How Cypermethrin Works (2)

If you are looking for a long-lasting insecticide with broad spectrum use, then we recommend you use a product like Sylo Insecticide. Sylo is an insecticide concentrate made with 25.4% cypermethrin.

Sylo Insecticide is used outdoors to create insecticide barriers that protect structures against pest invasions. This product is an emulsifiable concentrate, so it must be mixed with water before application. We recommend you mix and apply this product in a handheld pump sprayer for most applications. Depending on the pest you are treating, the labeled mix rate is between 0.52 to 5.1 fluid ounces of product per 1 gallon of water to treat 1,000 square feet.

Once your solution is mixed, you can broadcast this product over lawns and apply it to outdoor surfaces like walls, doorframes, under eaves, and around cracks and crevices. In all applications, allow the product to dry completely before allowing any people or pets around treated areas.

Pests that make contact with the spray or its residual will have their nervous systems impacted and will die within minutes. Sylo also has a repelling effect that will keep labeled insects away from treated areas away for up to 90 days.

What To Expect

Cypermethrin Information and Products | How Cypermethrin Works (3)

When using a Cypermethrin-based product, it does not guarantee an instant kill. It can take up to 24 hours to kill the target pest but it does have a long-time residual which can last up to 90 days, meaning you don't have to reapply as often unless you have a very large infestation.

Whenever you use any of our products here at Solutions Pest & Lawn, we always recommend keeping children and pets away from the area being treated until the application product has completely dried which usually takes a half-hour to an hour. Once dried, children and pets can be brought back into the area and go back to normal behaviors.

Featured Products

Sylo Insecticide-Sylo Insecticide is produced and sold by Solutions Pest & Lawn and is labeled to control many different insects, including termites. Sylo Insecticide is an oil-based concentrate that provides a residual barrier that continues killing insects for up to 90 days. Sylo Insecticide is comparable to the popular insecticide Demon Max (Demon EC). It can be applied using different types of sprayers to ensure all areas around building structures can be treated.

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Cypermethrin Information and Products | How Cypermethrin Works (2024)

FAQs

What is the work of cypermethrin? ›

How Does Cypermethrin Work? Cypermethrin is a pyrethroid, so its mode of action is by contact or ingestion. This ingredient interferes with the pests central nervous system, causing muscle spasms and inflicting paralysis. This creates an inability to function or eat which eventually leads to the pests death.

How effective is cypermethrin? ›

It behaves as a fast-acting neurotoxin in insects. It is easily degraded on soil and plants but can be effective for weeks when applied to indoor inert surfaces. It is a non-systemic and non-volatile insecticide that acts by contact and ingestion, used in agriculture and in pest control products.

Why is cypermethrin banned? ›

Chronic Toxicity, Genotoxicity, and Carcinogenicity

The US Environmental Protection Agency has classified cypermethrin as a possible human carcinogen based on benign lung adenomas found in mice.

How does cypermethrin affect humans? ›

Effects of cypermethrin range from mild local symptoms like paresthesia following dermal contamination to neurological symptoms like seizures, fasciculations, tremors, coma and gastrointestinal symptoms like nausea, vomiting and gastrointestinal irritation [2,3].

What pests does cypermethrin target? ›

Controls a wide range of insects of Lepidoptera, Coleoptera, Diptera, Hemiptera and others. It is good for the management of defoliating caterpillars and fruit borers. It is also used in veterinary applications and control of mosquitoes, co*ckraoches, house flies and other insects in public health issues.

How often can I spray cypermethrin? ›

Use the higher rate when larvae are larger than 1cm. (Helicoverpa punctigera) ALL STATES 20mL/100L of water or 40mL/100L of water or 150mL/ha or 300mL/ha Apply as a programme spray every 7-10 days when pests are present.

What are the side effects of cypermethrin spray? ›

Exposure to type II pyrethroids (cypermethrin, deltamethrin) result in salivation, choreoathetosis, coarse tremors, seizures and effects on the skeletal and cardiac muscles, also known as the choreoathetosis–salivation or the CS syndrome [9], [10].

Can you mix cypermethrin with water? ›

METHOD OF APPLICATION

To obtain better emulsion stability it is recommended to first mix the concentrate with a small quantity of water (10mℓ product to 1ℓ water). Mix thoroughly and add the rest of the water until the desired volume spray is obtained. Do not mix with oils, seaweed extracts and other pesticides.

Is cypermethrin good for mosquitoes? ›

By considering the dosage recommended by the WHO (0.03 g/m2; World Health Organization, 2007a) and the closest dosage evaluated, that is, 0.025 g/m2, about 88% of the mosquitoes would be expected to die after exposure.

What is the difference between permethrin and cypermethrin? ›

Permethrin is a type I pyrethroid [80], whereas cypermethrin is a type II pyrethroid with an α-cyano group [70,81]. Both are second-generation insecticides [69]. Permethrin was applied to the soil in the form of an Aspermet 200 EC preparation, whereas cypermethrin was applied in the form of an Arpon G preparation.

What is the most toxic insecticide? ›

Paraquat Dichloride: One Sip Can Kill | US EPA.

What is the trade name for cypermethrin? ›

Trade and Other Names: Trade names include Ammo, Arrivo, Barricade, Basathrin, CCN52, Cymbush, Cymperator, Cynoff, Cypercopal, Cyperguard 25EC, Cyperhard Tech, Cyperkill, Cypermar, Demon, Flectron, Fligene CI, Folcord, Kafil Super, NRDC 149, Polytrin, PP 383, Ripcord, Siperin, Stockade, and Super.

Can cypermethrin be absorbed through the skin? ›

The mean dermal absorption of cypermethrin was estimated to be 1.2 per cent after application of a spray formulation containing 31 mg cypermethrin to volunteers (Woollen et al, 1991; Woollen et al, 1992).

What is the antidote of cypermethrin? ›

There is no antidote available for cypermethrin poisoning, and its treatment was largely symptomatic and supportive.

Is cypermethrin good for killing roaches? ›

Products containing pyrethroid insecticides such as cyfluthrin, bifenthrin, deltamethrin, cypermethrin, or esfenvalerate will remain effective for several weeks, providing residual control of roaches that are exposed to treated surfaces.

Is cypermethrin effective against mosquitoes? ›

By considering the dosage recommended by the WHO (0.03 g/m2; World Health Organization, 2007a) and the closest dosage evaluated, that is, 0.025 g/m2, about 88% of the mosquitoes would be expected to die after exposure.

How long does it take for cypermethrin to break down? ›

days, although it can range from two to eight weeks (6, 9). Soil microbes rapidly break down cypermethrin (6).

What does cypermethrin do to dogs? ›

In extreme cases, sustained inhalation of high doses can cause respiratory paralysis and death. A frequent cause of intoxication in pets is off-label use of products for livestock, crop protection or vector control on dogs and cats. Since such products do include use instructions for pets.

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