Demon WP is not really selective, so unfortunately it is possible that butterflies or bees could be harmed if they were to come into contact with a treated area. To minimize this risk, it is recommended to apply in the early morning or in the evening when these insects are least likely to be foraging, and not to apply to any flowering vegetation.
Demon WP used to come in a bulk jar of wettable powder that you measured out with a measuring scoop. That jar has been continued. The Demon WP envelopes contain the same product but comes in pre-measured packets that you drop into your spray tank. The packet is soluble in water and when the packet disintegrates it releases the wettable powder into the spray tank. Same product, no measuring required now.
You should not apply Demon WP when you are experiencing any freezing temperatures per the product label.
Demon WP will kill any june bugs or beetles that land on or crawl over a treated surface its been applied to. June bugs and other similar pests like Japanese Beetles, are part of the grub life cycle. The best way to prevent June bugs and beetles is to treat for grubs twice a year to control as many as possible before they emerge from the soil and complete their life cycle as a beetle. You can review our Grub Control Guide to see the best products and timing for treating the yard and reducing the overall numbers that you may have to take care of with the Demon.
Demon WP actually is not labeled to treat for carpet beetles indoors, but it will help to combat a variety of other pests listed on the product label. A great IGR for carpet beetles would be Gentrol IGR. You can mix this concentrate with an insecticide and apply them at the same time. A great choice for insecticide to use with Gentrol as a crack and crevice treatment would be Suspend SC, which is a liquid concentrate. Be sure to vacuum thoroughly and often when treating for carpet beetles to help pick up adults, eggs, and debris that they may feed on such as animal dander.
Demon WP Insecticide will only kill insects after they have hatched from the eggs. Most insecticides cannot penetrate the eggs.
Demon WP is good for 3-5 years stored unopened and out of extreme temperatures. The date stamped on the package is the manufacturered/release date so the product woud be good 3-5 years from that date.
Demon WP Insecticide should not be applied to any manure or compost that would be used for edibles.
No, Demon WP should not be applied any type of animal feed that will be ingested. Demon WP is meant to be sprayed around the outside perimeter of the buildings and structures, and inside as a crack and crevice spray.
There is no valid reason to mix Demon Max and Demon WP together. Demon Max is a synthetic pyrethroid and Demon WP already contains a synthetic pyrethroid, so there would be nothing to gain by mixing these products together. Making a pesticide too strong can actually backfire. Areas that are treated with this overly concentrated spray will be repellent and insects will simply avoid the treated areas prolonging the infestation.
Each 0.3 oz packet of Demon WP is used in one gallon of water. Two 0.3 oz packets can be used in one gallon of water to eliminate harder to kill insects.
Yes, Demon WP Insecticide is labeled for centipedes and sod webworms. Please take a few moments to review our treatment articles on How to Get Rid of Sod Webworms and Centipedes for more information.
No, Demon WP is not labeled for booklice.
Demon WP Insecticide cannot be applied to animals. We do carry Happy Jacks Kennel Dip II which is labeled for mange mites.
Cynoff WP is actually a generic version of the Demon WP Insecticide. Both products contain the same active ingredient and work the same way.
Please take a moment to look over our guide on How To Get Rid Of Roaches for advice on the best ways to treat and prevent roaches.
Animals should always be kept out of the area where Demon WP is being applied until the area has completely dried. If you think that a pet or other animal has come into contact with a treated area that is still wet, it would be best to contact the manufacturer directly for advice on what action should be taken. You can reach Syngenta by calling 866-796-4368.
Demon WP Insecticide is not labeled for springtails. We suggest Onslaught as it is labeled for springtails and should help you to control them when used as directed on the product label. You will not get complete springtail control until you locate the source of the springtails and correct the conditions that are allowing them to thrive. Please take a few minutes to read our article"How to Get Rid of Springtails" to learn more about springtail elimination.
We normally would not recommend to use Demon WP Insecticide for carpenter ants. Although, it will kill the ants that contact it, it will not eliminate the colonies.
We generally recommend using Dominion 2L for carpenter ants in trees. This can be used directly on the tree or as a soil drench.
Also, please check out our Carpenter Ant Guide for tips on how to treat and prevent carpenter ants.
Demon WP can be used to treat the crazy ant infestation inside or outside 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.
Demon WP will kill insects in anywhere from a few minutes to several hours, depending on the size and health of the insect and how much active ingredient they contact. Please take a few moments to review our Roach Treatment Guide for more tips on how to eradicate this pest successfully.
