Demon WP Insecticide - Questions & Answers

Demon WP contains one of the most effective active ingredients for roach control, and it should work just fine for most roach infestations. If you have a current infestation however, insecticide sprays alone may not be enough. It is recommended that you use an IGR such as Gentrol to help halt the breeding process and a roach bait such as Advion Roach Bait Gel to help eliminate the roaches in places that cannot be sprayed. We have both of these products available in a our Roach Control Kit #1. If you want to try a different spray insecticide, Phantom would be a good choice. Phantom is an insecticide that kills cockroaches (and many other pests) through a powerful non-repellent, transferable active ingredient. Pests cant even detect Phantom, so they walk right over it and then spread it to other insects hidden behind walls or in their home colony, killing other pests they come in contact with. The one draw back to Phantom is that pests can take around a week to die after coming into contact with treated surfaces.

Sanitation also plays a key role in roach infestations. Even the best products on the market cannot over come poor sanitation. Please read the following article to learn some hints and tips on sanitation : Cockroach Quick Tips

The biggest factor in pesticides not lasting a long time is definitely UV light.  Each product will have different life spans depending on whether it is a powder like Demon WP, or liquid like our popular Talstar P product. Demon WP and other wettable powders should give a good 30 day residual even in direct sunlight. There are some liquid that will last 60 to 90 days, but they do not have the punch that Demon WP has. Treating weekly might be a little much, but since stink bugs are so bad right now we would recommend treating every 2 to 3 weeks at least since the numbers of stink bugs are so high right now.

For most applications Demon WP is applied once every three months indoors and once a month outdoors. The Demon WP product label does allow applications every 7 days indoors when necessary though most people do not have an issue that would demand weekly applications.

Demon WP is not labeled to control scabies mites. We only carry one product for scabies mite control, Tengard SFR, but it is only labeled to control this mite on livestock.

Demon wp is safe to use around animals. You want to make sure the area is completely dried before they re enter. Keeping the feeders away for a couple days would be a great idea. Please follow the label instructions for application.

You can use Demon WP around the outside of the edible garden, NOT inside the garden.

If using the envelope version of Demon WP, you will mix 1-2 packets per gallon of water. If you are using the 1lb jar powder version, you will mix 1-2 scoops of Demon WP to each gallon of water. Please let us know if you have any other questions.

Demon WP is a great product and is a professional strength product that will last about 1 month outdoors and about 3 months indoors. It does typically take up to 24 hours for insects to die after contacting treated areas. We do not have a way to compare it to products at Lowes as we are not sure what they carry.

If you are treating indoors, we recommend using Gentrol IGR. If you are treating outdoors, we recommend mixing in Nyguard IGR which will remain photostable for up to 2 weeks.

Demon WP is one of our most popular insecticides for the treatment of spiders and it is also labeled for wasps. You will mix two scoops (or two packs if purchasing the envelope) from the one pound jar to one gallon of water in a one gallon pump sprayer. It will have an outdoor residual for a month and an indoor residual for three months. It is important to treat outdoors so that they do not continue to enter the structure. Please click on the product label for specific instructions on application.

Talstar P is safe for people and pets after the treated area has dried. After Talstar is diluted, there is only a large enough amount of active ingredient to kill small insects.

We would not recommend using the Demon WP after the Termidor SC nor would you want to. Termidor SC is a non-repellent product that works with a delayed reaction time and a transfer effect to help kill off colonies of social insects such as ants. Termidor SC also has a very limited label that only allows you to use it on or immediately adjacent to a structure. Demon WP on the other hand is a broadly labeled synthetic pyrethroid that will kill the insects that walk over treated surfaces. If you use the two together you will be losing the non-repellent factor and transfer effect of the Termidor SC.  Termidor is labeled for centipedes and silverfish it will just take longer to kill them.  You could use the Demon WP on the inside and the Termidor outside though and many customers choose to do just that.

Demon WP is an excellent product for indoor and outdoor use. However, it does leave a powdery residue because it is a wettable powder.

If you are looking to a general pesticide spray, we would recommend Bifen IT. It is an amazing insecticide that is good for various pests, such as spiders, roaches, mosquitoes, etc. It can be sprayed indoors along the baseboards and cracks and crevices. Outdoors it can be sprayed around the perimeter of your home, on ornamentals and trees as well. This is not labeled for edibles. It is also safe once it is dry and dries clear so your pet will not see it. Mopping or getting where you sprayed wet does not affect the product.

Demon WP is only labeled to be used as a crack and crevice treatment along the baseboards. If you have the option use a pin stream setting on your sprayer, you should get a direct stream and it would not spray on the carpet areas. It is possible it will leave some white residue on the carpet but we have not heard of any clumping. Please let us know if you have any further questions.

We would not recommend spraying Demon WP while the birds are in the room. Demon WP is safe for animals once it has dried. This could take anywhere between 2-3 hours.

When used as directed Demon WP would be safe.  Demon WP should only be applied to cracks and crevices, along baseboards etc.  Just putting the enclosure near these areas would not pose harm to the snake.  Pets should be out of the treatment area until dry.

Demon WP Insecticide if stored in a cool dry area will last for up to 5 years. So, you would need to order fresh product.

While Demon WP is labeled for ants, it will only kill the ants that contact a treated surface and you can continue to see them eve after treatment.   Demon WP can be used to treat the crazy ant infestation in the yard. You should try to treat the colony or nesting site directly. Crazy Ant mounds are not readily visible above ground. Possible nesting sites for Crazy Ants include: soil beneath landscape timbers, logs, mulch firewood and other debris. Crazy Ants may also nest inside rotting wood and tree holes. You can read our article on crazy ants for more treatment information: How to Get Rid of Crazy Ants.

If you are cleaning after you spray then you are rendering the product ineffective as you are wiping up everything you just put down. You should be cleaning first and then spraying with the product lightly over the baseboards and areas you need to treat. Once the surfaces have dried completely it is not harmful to pets or children and they will not pick the chemical up on their bodies or be affected by it by crawling over it. Since Demon is a WP (wettable powder) and it dries with a powdery substance on the surface, you may want to think about swapping to something that dries clear and doesnt sit on the surface like the Demon does. Something like Temprid SC would be a great option for that for a variety of pests and is safe once dry as well.

When using insecticides, it is important that you use proper precautions, such as a respirator mask. Demon WP is a chemical and has the potential to be dangerous if the label is not followed properly. We would recommend contacting the manufacturer and/or Poison Control immediately if you feel as if something is not right.