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The Global Insight

Will demon kill mosquitoes

Author

Emma Valentine

Updated on April 03, 2026

Demon WP Insecticide is manufactured by Syngenta and is a broad-spectrum insecticide that provides a fast kill and long-lasting residual barrier. … Demon WP Insecticide is safe to use indoors and outdoors to control for spiders, ants, aphids, chinch bugs, mosquitoes, and more.

Does Demon Max work on mosquitoes?

You should use 1/2 fl oz of Demon Max per gallon of water for mosquito control and you will need to reapply once per month to maintain control. … You should use 1/2 fl oz of Demon Max per gallon of water for mosquito control and you will need to reapply once per month to maintain control.

Is Demon WP harmful to humans?

The active ingredient in Demon WP is cypermethrin, which is a synthetic pyrethroid insecticide. It kills insects quickly by attacking their central nervous system. The ingredient is very toxic to most insects, bugs, and pests, as well as fish and most other aquatic creatures, but is mostly non-toxic to humans.

What insects does demon kill?

Demon WP Insecticide kills large roaches, spiders, crickets and more. Demon WP Insecticide has been a number one seller for many years due to it’s convenience of use. Simply drop the packets in the envelope in water (they dissolve).

What insects does Demon Max kill?

Demon Max, with Cypermethrin 25.3% is a multi-purpose residual insecticide that kills over 30 types of insects such as roaches, fleas, ticks, ants, and termites.

Does demon bug spray kill fleas?

Answer: Demon WP Insecticide will kill adult fleas outdoors only 1-2 days after the lawn is mowed. It is mixed at 1-2 packs per gallon of water per 1,000 sq ft.

How long does it take for Demon Max to work?

When using Demon Max for general use on lawns and landscapes, 0.33 ounces to 0.65 ounces will treat up to 1,000 square feet. Demon Max Insecticide provides a quick knockdown but it can take a few hours for the exposed insect to die.

Does demon work on termites?

Though Demon WP works to kill and prevent termite infestations, it only works on above-ground termites; it does not actively kill subterranean termites.

Does demon kill fire ants?

Answer: Yes, Demon Max is labeled for fire ants. Per the product label you would want to use the Drench Method (Ant Mounds, Fire Ants): Apply 1-2 gal of 0.1% Demon Max emulsion to each mound area by sprinkling the mound until it is wet.

How many packets of Demon WP is a gallon?

Answer: You can use 1-2 packets of Demon WP per gallon of water depending on what and where you are treating.

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What is Demon WP good for?

The WP in Demon WP stands for wettable powder. … Demon WP is particularly helpful when cleaning out large infestations of cockroaches and spiders. Ants, aphids, stink bugs, Asian lady beetles, boxelder bugs, scorpions, mosquitoes, and wasps can also be controlled by Demon WP.

How often should you spray Demon WP?

Answer: Demon WP Insecticide can be applied every 21 days as needed.

Does Demon Max kill lice?

Demon WP Insecticide is not labeled for lice or to be applied for furniture. Steri-Fab Insecticide would be a better option. It can be applied to couches, chairs and other upholstered furniture.

Does Demon Max kill termites?

Demon Max provides control of subterranean termites (including eastern subterranean, western subterranean, desert termite, and Formosan subterranean termite), and when applied to wood, may be used for spot treatment of drywood termites. Application: 1.3 – 5.1 oz.

Do demons kill ticks?

Answer: Demon Max will kill ticks when used as directed on the product label. It is pet safe also when used as directed on the label. Pets should be out of the area during treatment until dry.

Is Demon Max Good for bed bugs?

Answer: Demon Max is not labeled for bed bugs. We normally recommend using one of our Bed Bug Kits to ensure that you have everything you need for a complete treatment.

Will Demon keep flies away?

Answer: Yes, Demon WP will kill houseflies that come in contact with the treated surfaces. Please review our treatment article on How to Get Rid of Flies for a more successful eradication program.

What is the difference between bifenthrin and permethrin?

Answer: Bifen I/T is our most popular choice for mosquito control. … Bifen I/T would also be a better solution then permethrin because permethrin breaks down quicker in sunlight and the Bifen I/T only needs to be applied every 30 days whereas permethrin would need to be applied every two weeks.

How long does Demon Max take to dry?

When spraying Demon Max you would want wait the standard dryng time of 2-4 hours. Keep in mind that weather conditions play a part in this as well should you be in a high humidity area. Demon Max should only be used as a crack and crevice spray indoors and should not be applied to any food contact o…

What is better than talstar?

Onslaught is micro-encapsulated and will last a little longer on outdoor surfaces which does give it a bit of advantage over Talstar P or Bifen IT. You can also use either one to do a barrier treatment around the outside of your home and in your crawl space to stop pests from moving indoors.

Does Demon Max stain?

Answer: If you have older siding and are wanting to treat for boxelder bugs and other overwintering pests on the side of the home, as well as mosquitoes and various other insects, we would not suggest going with the Demon Max. The oils in the product are very likely to stain the side of the home.

Does demon bug spray kill wasps?

Demon WP is labeled to eradicate wasps when they come in contact with the areas that have been treated. Please mix two water soluble packets to one gallon of water per 1,000 sq ft.

Will demon hurt pets?

Demon WP Insecticide is pet safe as long as you follow the manufactuers labeled instrunctions. Remove any animals from the areas being treated and keep them out of those areas until the product has had ample time to dry. We suggest a minimum of a couple hours.

What demons kill?

Demon WP Insecticide kills large roaches, spiders, crickets and more. Demon WP Insecticide has been a number one seller for many years due to it’s convenience of use. Simply drop the packets in the envelope in water (they dissolve).

Is Demon Max the same as Demon WP?

Demon Max is made by the same company that makes Demon WP and they both contain the same active ingredient. The main difference is Demon Max is more intended for use as a termiticide to treat and protect homes against termites. Demon WP is more for insect control inside and outside homes.

Does demon kill sugar ants?

Answer: Demon WP Insecticide will kill ants that come in contact with it, but it will not eradicate them. … Phantom is a non-repellent insecticide that has a delayed reaction which allows ants time to get back to the colony and spread the product.

Does Demon Max kill ants?

Demon Max, with Cypermethrin 25.3% is a multi-purpose residual insecticide that kills over 30 types of insects such as roaches, fleas, ticks, ants, and termites.

What is the active ingredient in Demon WP?

Demon WP in Water-Soluble Packets is a Group 3 insecticide that contains the active ingredient cypermethrin.

Can you spray demon inside?

Demon WP Insecticide is safe to use indoors and outdoors to control for spiders, ants, aphids, chinch bugs, mosquitoes, and more. Demon WP is an excellent product to use when making cracks and crevice applications indoors or broadcast applications outdoors for up to 60 days of control.

Can you use Demon WP on carpet?

Answer: Demon WP cannot be applied to carpet for flea control indoors. According to the Demon WP product label Demon WP can only be used outdoors for flea control. … We recommend using Ultracide for indoor flea control.

Is Demon good for German roaches?

Yes, Demon Wp will kill most types of roaches. The active ingredient Cypermethrin is proven very effective against german roaches and other roaches. We also recommend to add a Roach bait Gel like Invinct Gold Roach bait gel. 9 of 9 people found this answer helpful.