Demon Max Insecticide — 25.3% Cypermethrin Concentrate, 16 oz
Pesticide — read label before use
Demon Max is a professional-grade insecticide concentrate. Always read and follow label directions. Keep people and pets off treated areas until dry. Avoid application near water bodies, storm drains, and pollinator habitats.
Why we recommend this
Demon Max is the go-to perimeter insecticide for Arizona homeowners dealing with scorpions, bark scorpions especially. The 25.3% cypermethrin formula is what licensed pest control technicians use — and at this concentration, one bottle goes a very long way. For DIY perimeter protection between professional treatments, this is our top pick.
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Key Features
Professional-Strength Cypermethrin
25.3% cypermethrin concentrate — the same active ingredient used by licensed pest control technicians for perimeter and indoor treatments.
Kills 30+ Pest Species
Effective against scorpions, ants, cockroaches, spiders, fleas, ticks, wasps, mosquitoes, and dozens of other common household pests.
Up to 90-Day Residual
Long-lasting outdoor residual keeps working for up to 3 months after application — fewer treatments, more protection.
Highly Concentrated Formula
One 16 oz bottle yields up to 40 gallons of finished spray — exceptional value compared to ready-to-use products.
Indoor & Outdoor Use
Labeled for perimeter treatments, indoor crack and crevice, lawn, ornamental, and structural pest control applications.
Fast Knockdown
Cypermethrin disrupts insect nervous systems on contact — fast knockdown with lasting residual protection.
Product Specifications
Customer Reviews
Carlos M.
Best scorpion control product I've found
Living in Arizona, scorpions are a constant problem. I spray the perimeter of my house every 60 days with Demon Max and haven't seen a scorpion inside in over two years. Mix 1 oz per gallon, spray the foundation, around windows and doors, and any entry points. This stuff works.
HomeOwner TX
Eliminated a serious ant infestation
Had fire ants coming in through the garage and kitchen. One perimeter treatment with Demon Max and the problem was gone within 48 hours. The residual has kept them away for months. Far better than anything from the hardware store.
DIY Pest Pro
Same product the pros use — fraction of the cost
I used to pay $150/quarter for pest control service. Now I buy Demon Max and do it myself for about $20 per treatment. Same results, same active ingredient. Read the label, mix correctly, and apply properly. You'll never go back to paying for service.
Professional-strength perimeter protection.
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