Cynoff EC

98% of 100
In stock
  • Buy 4 for $59.95 each and save 3%
  • Buy 8 for $54.95 each and save 12%

Cynoff EC with Cypermethrin 24.8%, is just like Demon Max (same labels).  It is an odorless, liquid insecticide concentrate which leaves no visible residue.

Pro Tips
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Cynoff EC

Cynoff EC formulation provides fast knockdown and a long lasting control of listed insects. Cynoff EC has a longer-lasting residual than organophosphates such as Diazinon and Malathion. Also, since Cynoff EC belongs to a synthetic pyrethroid family of pesticides; is safer than the organosphates.

How Cynoff EC Works

The insects pick up the Cynoff EC residual. It is either absorbed through the body or ingested.


  • Cynoff EC formulation provides fast knockdown of pests
  • Safer than the organosphates.
  • Cynoff EC insecticide concentrate which leaves no visible residue.

Percentage of Cypermethrins in comparable products

  • Demon Max (25.3%)
  • Viper Insecticide (25.4%)
  • Cynoff EC (24.8%)
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Target Pest

Ants, Biting Flies, Boxelder Bugs, Centipedes**, Cockroaches (maintenance), Crickets, Earwigs, Elm Leaf, Beetles, Bees, Carpenter BeesCockroaches (clean-out), Spiders, Ticks, Wasps, Firebrats, Fleas*, Flies*, Millipedes, Mosquitoes* , Pillbugs, Silverfish, Sowbugs

* Outdoor use only. **Not for Indoor use in California

Active Ingredient (s) Cypermethrin 24.8%
For Use : Residential and Commercial areas
Yield 32-64 gallons of mixture
Mixture|Application 1/2 or 1 ounce of Cynoff EC per gallon of water
Retreatment As needed
Shipping Restrictions AK, CT, NY
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