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Product Details

Demon WP WSP Insecticide

Control that makes pests easy targets.
Demon WP insecticide features an easy-to-use wettable powder formulation and contains cypermethrin, which is known for its strength, speed and staying power when controlling cockroaches, spiders, scorpions and other pests.

Watch the following video to see how to properly mix dry-formulation insecticides like wettable powder (WP), water-soluble granule (WSG) and water-dispersible granule (WDG) products.

Active Ingredients:


HRAC/FRAC/IRAC Classification:

Group 3A Insecticide



Label Details

Approved Markets
Labeled Pests
        Special Labels
        Worker Safety

                  Restricted Entry Interval:

                  PPE required for Applicators, Mixers or Loaders:

                  PPE required for Early-Entry Workers:

                  Select a state from the menu below:

                  FEATURES & BENEFITS

                  • Convenient packaging and easy-to-mix formulation are available in water-soluble packets
                  • Features low use rates that can provide pest knockdown in less than an hour
                  • Provides high insecticidal activity, long-lasting residual control and low volatility
                  • Easy-to-use formula dissolves quickly to create an ideal suspension that won’t clog equipment
                  • Versatile enough to be used on both porous and non-porous surfaces, and can be used indoors as a crack-and-crevice application
                  • Ideal for clean-out of cockroaches, spiders and other pests in residential and commercial non-food handling areas

                  Supporting Materials

                  Featured Downloads:


                  The following are many of the most frequently asked questions about Syngenta's Demon WP insecticide. If you have additional questions please feel free to contact your Syngenta territory manager.

                  How many packets of Demon WP should I use per gallon of water?
                  One gallon of water can be mixed with one packet of Demon WP for the 0.1% concentration or two packets for the 0.2% concentration. This dry formulation mixing video is a good resource for how to properly mix Demon WP.

                  Can Demon WP be applied inside?
                  Yes, Demon WP can be applied as a crack-and-crevice, low-pressure spray indoors.

                  Will Demon WP leave any residue?
                  Demon WP may leave a milky white substance after application, but this can be easily removed with normal cleaning methods, such as all-purpose cleaner, disinfectant wipes or hot, soapy water.

                  Can I spray Demon WP for fleas?
                  Demon WP is labeled to control fleas; however, effective flea control requires an indoor application. Demon WP cannot be applied as a broadcast treatment indoors since it is only approved for crack-and-crevice treatments.

                  For any additional questions about Demon WP, please contact the Syngenta Customer Center at 1-866-SYNGENT(A) (1-866-796-4368).

                  Always refer to the product label for full use recommendations.

                  PestPartners 365

                  Receive yearlong rebates on purchases of Demon WP WSP with the PestPartnersSM 365 Program. Benefits of being a PestPartners 365 member:
                  • Purchase your choice of any Syngenta Professional Pest Management products to become a member
                  • No sign-up or program forms are required
                  • Defer payment on select products with SummerPay™ terms

                  Where to Buy

                  We are proud to build partnerships in the pest management industry. Below is a list of Syngenta distributors.

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                  © Syngenta. Important: Always read and follow label instructions. Some products may not be registered for sale or use in all states or counties and/or may have state-specific use requirements. Please check with your local extension service to ensure registration and proper use. The trademarks displayed or otherwise used herein are trademarks or service marks of a Syngenta Group Company or third parties. Syngenta Customer Center: 1-866-SYNGENT(A) (796-4368).