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ZOECON
Zenprox EC Insecticide
Zenprox EC is a concentrated insecticide that controls a wide range of insects. It is made with an insecticide plus a synergist to provide fast results with residual effects. Zenprox EC can be used as a broadcast or crack-and-crevice application to control spiders, bed bugs, and more.
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Zenprox EC Product Page
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Price as of
11/28/25
11/28/25
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Zenprox EC Insecticide, manufactured by Zoecon, is a versatile insecticide that controls many insects.
It contains the active ingredients etofenprox and piperonyl butoxide (PBO) to provide a fast knockdown and lasting effects.
Zenprox EC Insecticide is a great stand-alone product, or it can be mixed with an insect growth regulator (IGR) for the most severe infestations.
Tools Needed
A backpack sprayer, handheld pump sprayer, Micro-Injector or Actisol applicators are needed.
How to Use
- Step 1: Determine how much Zenprox EC Insecticide Insecticide to use by measuring the square footage of the treatment area. To do this, measure the length and width of the treatment area in feet, then multiply them together (length X width = square footage). The Zenprox EC label states to use a rate of 2 fl. oz. per 1,000 square feet in a gallon of water. If you have a 5,000-square-foot area to be treated, you would need 10 oz. of product mixed with 5 gallons of water.
- Step 2: To begin making applications with a sprayer, fill the spray tank halfway with water. Add the appropriate amount of product to the spray tank and shake it to mix. Add the rest of the required amount of water to make a solution. Shake the spray tank again to make sure it is thoroughly mixed.
- Step 3: Apply Zenprox EC to the surface areas and cracks and crevices listed on the label. Use a fan spray setting to get nice, even coverage on surfaces and a pin stream setting for cracks and crevices. Let all areas dry before allowing people or pets to re-enter. Applications can be made every 14 days as needed.
Where to Use
Zenprox EC is formulated as an indoor broadcast, crack, crevice, void, and spot treatment. It can be applied in homes, hotels, schools, hospitals, office buildings, and more. Zenprox EC can be used in various surface areas, including baseboards, carpets, floors, around plumbing pipes, under furniture and appliances, in closets, mattresses, box springs, wall decorations, rugs, and more.
Do not apply to food or feed handling areas. Use it only as a crack and crevice spray when treating mattresses.
When to Use
This product can be used as a preventative treatment with a 14 to 28-day residual barrier, depending on the targeted pest. It can also be used as a quick knockdown treatment for current indoor insect infestations.
Do not apply more than every 2 weeks.
Safety Information
Zenprox EC Insecticide is safe to use around children and pets when applied according to the product label instructions. Always wear the proper personal protective equipment (PPE) when mixing or applying this product.
Do not allow children or pets to contact treated surfaces until the spray has dried.
Special Considerations
Zenprox EC can be pre-mixed and used the next day; just shake the spray tank to mix well before use. It can also be mixed with an insect growth regulator to stop the life cycle of fleas or bed bugs.
| Restricted Use | No |
|---|---|
| Shipping Restrictions | CT |
| Availability | Online |
| Signal Word | CAUTION |
| Keith's Pro Tip | "For best results with Zenprox EC, we recommend mixing the formula with an IGR like Martin's I.G. Regulator. Zenprox will kill the adult insects while the IGR prevents eggs and larvae from reaching adulthood, making the elimination process much faster." |
| Target Pests Multi | Ants, Bed Bugs, Black Widow Spiders, Brown Recluse Spiders, Carpet Beetles, Centipedes, Cockroaches, Confused Flour Beetles, Crickets, Darkling Beetles, Dermestid Beetles, Earwigs, Firebrats, Fleas, Flies, Fruit Flies, Gnats, Indianmeal Moths, Lesser Grain Borers, Millipedes, Mosquitoes, Moths, Pillbugs, Red Flour Beetles, Saw-Tooth Grain Beetles, Scorpions, Silverfish, Sowbugs, Spiders, Stink Bugs, Ticks, Wasps |
| Time to Kill | Zenprox EC provides a quick knockdown of targeted insects. It will provide a 28 day residual control for fleas and a 14 day residual control for other listed insects. |
| Chemical Type | Insecticide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Methods | Broadcast Spray, Crack & Crevice, Injection, Spot Treatment |
| Product Drawbacks | Zenprox EC is only labeled for indoor use and cannot be used for outdoor treatments. |
| Active Ingredient | Etofenprox 16.2% Piperonyl Butoxide 64.8% |
| Application Equipment | Gloves, Pump Sprayer |
| Mix Rate | Mix 2 ounces of Zenprox EC per 1 gallon of water for broadcast applications, cracks and crevices sprays, and spot treatments. For more specific application rates please refer to the label. |
| Use Sites | Indoors |
| Yield | A 1 gallon mixture of Zenprox EC will treat up to 1,000 square feet. |
| EPA Registration No. | 2724-804 |
| Shelf Life | Zenprox EC will last for up to 1 to 2 years when stored according to the product label. Store Zenprox EC in a cool, dry storage area. |
| Comparable Products | Flex 10-10 |
| Children or pets? | No |
| Property Characteristics | None |
| Availability | Online |
| Restricted Use | No |
| Brand | ZOECON |
| Keith's Pro Tips | "For best results with Zenprox EC, we recommend mixing the formula with an IGR like Martin's I.G. Regulator. Zenprox will kill the adult insects while the IGR prevents eggs and larvae from reaching adulthood, making the elimination process much faster." |
| Product Drawbacks | Zenprox EC is only labeled for indoor use and cannot be used for outdoor treatments. |
| Target Pests | Ants, Bed Bugs, Black Widow, Brown Recluse, Carpet Beetles, Centipedes, Cockroaches, Confused Flour Beetles, Crickets, Darkling beetles, Dermestids, Earwigs, Firebrats, Fleas, Flies, Fruit flies, Gnats, Indian meal moths, Lesser Grain Borers, Millipedes, Mosquitoes, Moths, Pillbugs, Red Flour Beetles, Scorpions, Silverfish, Spiders, Ticks, and Wasps. |
| Application Equipment | Gloves, Pump Sprayer |
| Application Methods | Broadcast Spray, Crack & Crevice, Injection, Spot Treatment |
| Active Ingredient | Etofenprox 16.2% Piperonyl Butoxide 64.8% |
| Product Type | Insecticide |
| Formulation | Emulsifiable Concentrate (EC) |
| Application Rate | Mix 2 ounces of Zenprox EC per 1 gallon of water for broadcast applications, cracks and crevices sprays, and spot treatments. For more specific application rates please refer to the label. |
| Shelf Life | Zenprox EC will last for up to 1 to 2 years when stored according to the product label. Store Zenprox EC in a cool, dry storage area. |
| Yield | A 1 gallon mixture of Zenprox EC will treat up to 1,000 square feet. |
| Use Sites | Indoors |
| Time to Kill | Zenprox EC provides a quick knockdown of targeted insects. It will provide a 28 day residual control for fleas and a 14 day residual control for other listed insects. |
| Comparable Products | Flex 10-10 |
| Incompatible Home Siding | Brick, Hardie Plank, Stone Veneer, Stucco, Wood, Vinyl |
| EPA Registration # | 2724-804 |
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