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Acephate 90% Prills

Acephate 90% Prills is a residual pesticide that provides control of aphids, thrips, wasp, cockroaches and other common plant bugs. The five-pound container is made up of a water-dispersible pellet form that when mixed with water can be applied to plants, shrubs, non-bearing fruit and nut trees and much more.
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Acephate 90 Prills Product Page
Min : 77.57 - Max : 77.57
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Price as of
09/16/25
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Acephate 90% Prills, manufactured by Control Solutions Inc., is for use as a residual pesticide providing control of aphids, thrips, wasp, cockroaches and other common plant bugs.

This easy to use product comes in a five-pound container is made up of a water-dispersible pellet form that when mixed with water can be applied to plant, shrubs, non-bearing fruit and nut trees. You could also apply it indoors to treat for pantry pests and cockroaches.

Tools Needed

To use Acephate 90% Prills, you will need to mix the product in a handheld sprayer or a professional spray rig for large volume applications. 

How to Use

Perimeter Treatment

  • Step 1: Determine how much Acephate 90% Prills to use by measuring the square footage of the treatment area. Find the square footage by measuring the treatment area's length and width in feet, then multiplying them together (length X width = square footage). Typically, an average treatment should be done at a rate of 0.76 oz. to 1.51 oz. (21.0 to 42.0 grams) per 1000 square feet in a gallon of water, depending on the desired concentration you'd want. For example, If you have a 2,000 square foot area to be treated at a 0.5% concentration, you would need 1.52 oz of Celero mixed with 2 gallons of water.
  • Step 2: Since Acephate 90% is a water-dispersible granule it is important to add the chemical to water. To mix, you will put water in your sprayer, then add the appropriate amount of chemical to the sprayer and shake it up until well mixed.
  • Step 3: Indoors (non-residential), spray the product in a low-pressure coarse spray inside cracks and crevices such as around windows, storage areas, baseboards, corners of rooms and closets, under and around dishwashers, sinks, refrigerators, stoves, and cabinets. Outdoors (non-residential), spray the product via coarse fan tip setting on soil 6 to 10 feet adjacent to the structure and height of 2 to 3 feet on the foundation. On turfgrass, it should only be used to treat fire ant or harvester ant mounds.

Where to Use

Acephate 90% Prills is applied as an outdoor treatment to control ants including imported fire ants (treatment of turfgrass is restricted to fire ants and harvester ant mounds) and other listed pest within industrial institutional and commercial buildings including restaurants, warehouses, stores, hospitals, manufacturing, plants, and ships. It is not meant for indoor residential use. Anytime it is used in commercial food and non-food areas, it should be strictly used as a spot and/or crack and crevice treatment.

When To Use

Use Acephate 90% Prills as needed to control existing populations of pests. In some cases, such as for turf insects, it may be necessary to repeat the treatment at 2-week intervals.

Safety Information

Acephate 90% Prills is safe for pets and kids when it has been applied properly according to the label and has been given time to dry. Be sure to wear the proper PPE before mixing and applying Acephate 90% (gloves, protective eyewear, particle mask, long sleeve clothing, closed-toed shoes). Refer to the label for instructions on treating areas around water and edible vegetation.

Special Considerations

Acephate 90% Prills comes in water dispersible granule form so you will need to shake well and possibly shake the container during application to ensure the product is well-mixed. It should be stressed also that this is not meant for residential use either indoors or outdoors.

AvailabilityOnline
Restricted UseNo
Shipping Restrictions5 Pound: AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT
BrandCSI
Keith's Pro Tips"When treating for ants, applying Quali-Pro Acephate 90% Prills in early morning or late afternoon, when ants are most active, for best results. Applications made under prolonged hot and dry conditions may be ineffective due to the location of ants deep within the nest."
Product DrawbacksShould not be applied with low- pressure handwand equipment except as an ant mound treatment and on ornamental trees or shrubs when grown for non-commercial or non-agricultural use.
Target PestsAnts, Aphids, Bagworms, Birch Leafminer, Black Turfgrass Ataenuis, Black Vine Weevil, Box Elder Bugs, Budworms, California Oakworm Cankerworms, Chinch Bugs, Citrus Blackfly, Cutworm, Douglas Fir Tussock, Elm Leaf Beetles, Fall Armyworm, Grasshoppers, Greenbug, Gypsy Moth Larvae, Harvester Ants, Imported Fire Ants, Japanese Beetle, Katydid, Lace Bugs, Leafhoppers, Leafrollers, Lygus, Mealybugs, Mole Crickets, Moth Larvae, Nantucket Pine TipMoth Larvae, Orangedogs, Plant Bugs, Ponderosa PineNeedle Miner, Root Weevil Adults, Sawflies, Scale, Southern Armyworm, Spittlebug, Strawberry Root Weevil, Sweet Potato Whiteflies, Tent Caterpillars, Thrips, Webworms, Whiteflies, and Yellow Striped Armyworm.
Application EquipmentPump Sprayer, Spray Rig
Application MethodsCrack & Crevice, Spot Treatment
Active IngredientAcephate 90%
Product TypeInsecticide
FormulationWater Dispersible Granule (WDG)
Application Rate You will mix 0.76 oz. to 1.51 oz. per 1000 square feet or 1 gallon of water. For more specific application rates please refer to the label.
Shelf LifeAcephate 90% Prills will last 3 to 5 years in storage if kept in a cool, dry place.
YieldOne 5 lb container can treat 2-3 acres of land depending on application rate.
Use SitesIndoors, Outdoors
Time to KillResults from Acephate 90% Prills can take up to 2 weeks to show.
Comparable ProductsAcephate 97UP Insecticide
EPA Registration #53883-253
More Information
Restricted Use No
Shipping Restrictions AK, CA, CT, HI, IN, MI, NY, OR, RI, SC, VT
Availability Online
Signal Word CAUTION
Keith's Pro Tip "When treating for ants, applying Quali-Pro Acephate 90% Prills in early morning or late afternoon, when ants are most active, for best results. Applications made under prolonged hot and dry conditions may be ineffective due to the location of ants deep within the nest."
Target Pests Multi Ants, Aphids, Bagworms, Birch Leafminer, Black Turfgrass Ataenius, Black Vine Weevil, Boxelder Bugs, Budworms, California Oakworms, Cankerworms, Chinch Bugs, Citrus Blackfly, Cockroaches, Confused Flour Beetles, Cutworms, Douglas Fir Tussock Moth Larvae, Earwigs, Elm Leaf Beetle Larvae, Fall Armyworms, Fall Cankerworms, Flea Beetle, Grasshoppers, Greenbugs, Gypsy Moth Larvae, Harvester Ants, Imported Fire Ants, Indianmeal Moths, Japanese Beetle, Katydids, Lace Bugs, Leafhoppers, Leafrollers, Lygus Bugs, Lygus Plant Bugs, Mealybugs, Mole Crickets, Nantucket Pine Tip Moth Larvae, Orangedog, Pillbugs, Ponderosa Pine Needle Miner, Root Weevils, Sawflies, Scale Crawlers, Sod Webworms, Southern Armyworm, Sowbugs, Spring Cankerworms, Strawberry Root Weevil, Sweet Potato Whitefly, Tent Caterpillars, Thrips, trogodermas, Wasps, Webworms, Whiteflies, Yellow Striped Armyworm
Time to Kill Results from Acephate 90% Prills can take up to 2 weeks to show.
Chemical Type Insecticide
Formulation Water Dispersible Granule (WDG)
Application Methods Crack & Crevice, Spot Treatment
Product Drawbacks Should not be applied with low- pressure handwand equipment except as an ant mound treatment and on ornamental trees or shrubs when grown for non-commercial or non-agricultural use.
Active Ingredient Acephate 90%
Application Equipment Pump Sprayer, Spray Rig
Mix Rate You will mix 0.76 oz. to 1.51 oz. per 1000 square feet or 1 gallon of water. For more specific application rates please refer to the label.
Use Sites Indoors, Outdoors
Yield One 5 lb container can treat 2-3 acres of land depending on application rate.
EPA Registration No. 53883-253
Shelf Life Acephate 90% Prills will last 3 to 5 years in storage if kept in a cool, dry place.
Comparable Products Acephate 97UP Insecticide
Children or pets? No
Property Characteristics Food-Bearing Plants

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