Demon WP Insecticide -Kills Cockroaches, Spiders and Other Pests - 1 Envelope (4 Water Soluble Packets) by Syngenta
Demon WP Insecticide -Kills Cockroaches, Spiders and Other Pests - 1 Envelope (4 Water Soluble Packets) by Syngenta
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Syngenta

Demon WP Insecticide -Kills Cockroaches, Spiders and Other Pests - 1 Envelope (4 Water Soluble Packets) by Syngenta

Demon WP Insecticide -Kills Cockroaches, Spiders and Other Pests - 1 Envelope (4 Water Soluble Packets) by SyngentaDemon WP Insecticide Kills Cockroaches Spiders and Other Pests 1 Envelope 4 Water Soluble Packets by Syngenta
Size4x9.5 gram-Out of stock

Key item features


    • Size: 1 Envelope (9.5 g) containing 4 (0.33 ounce) packets
    • Formulation-Cypermethrin Advanced-generation pyrethroid provides excellent control at extremely low concentrations.
    • An odorless, wet table powder in water-soluble packets (4 packets/bag).
    • Demon takes command of roaches and other major insects inside the home.
Current price is $15.62
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4.5 out of 5 stars
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241 ratings84 reviews
How item rating is calculated
  1. 5 stars80% (194)
  2. 4 stars7% (17)
  3. 3 stars4% (10)
  4. 2 stars3% (7)
  5. 1 star5% (13)
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Showing 1-3 of 84 reviews

Jun 21, 2026
BT
Item details
Size: 4x9.5 gram
Sold and shipped byHome & Garden Supply
5 out of 5 stars review

Verified Purchase

Demon WP Insecticide works as it said it would.

Easy to mix and apply. Got rid of all the pee ants that were coming into the house. Sprayed all the outside of the house as well as the all doors and garage doors. Took about a week before all ants and spiders were gone.

Helpful?71XP99W5C10N164549253
Feb 4, 2026
Harold
Item details
Size: 4x9.5 gram
Sold and shipped byHome & Garden Supply
5 out of 5 stars review

Verified Purchase

I have used more expensive products, and I find this to be just as effective, if not more than most .

Helpful?71XP99W5C10N164549253
Jul 5, 2025
Danielle
Item details
Size: 4x9.5 gram
Sold and shipped byUSA Supply
5 out of 5 stars review

Verified Purchase

I followed the guide on this and I also sprayed it across my baseboards throughout the house around windows in and out of my home .I paid special attention to the at plug-in outlets I poured some on a rag, and I wiped it around the area of the plug-in outlets For about 3 days, I had to clean up quite a bit of the dead roaches. I no longer have roaches

Helpful?71XP99W5C10N164549253