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Onslaught FastCap Spider & Scorpion Insecticide

by MGK
Sizes & Options
  • Product Overview
  • Benefits
  • Target Pests
  • Product Overview

    Onslaught FastCap is a powerful micro-encapsulated insecticide delivering a fast kill and long-lasting control of nuisance pests such as spiders, scorpions, mosquitoes, fleas, and many others in and around residential and commercial properties. Approved for use indoor and outdoors, including exterior broadcast applications and treatment to livestock facilities, turf, ornamentals, and landscapes.
  • Benefits & Use

    Onslaught FastCap Spider and Scorpion Insecticide combines the trusted active ingredient esfenvalerate with the powerful knockdown agent prallethrin and the proven synergist piperonyl butoxide (PBO). The result is enhanced kill and control of even the most hard to control pests.
  • Target Pests

    Spiders, scorpions, ticks, ants, cockroaches, mosquitoes, fleas, carpenter ants, carpenter bees, stored product pests, aphids, whiteflies, and many more. Please refer to the Onslaught FastCap label for a complete listing of approved target pests.
  • Product Video
  • Label / SDS
  • Tech Specs
  • Product Video

  • Label / SDS

    Product Label

    Safety Data Sheet

    Safety Data Sheet (Spanish)

    Product Information Sheet

    Scorpion Infographic

    Spider Infographic



  • Tech Specs

    Active Ingredient: Esfenvalerate 6.40%, Prallethrin 1.60%, Piperonyl Butoxide 8.00%

    Manufacturer: MGK

    Formulation: Insecticide Concentrate

    Approved Sites: Residential and Commercial. Indoors and Outdoors. Per label instructions.

    Application Information: Mix 0.5 or 1.0 ounces of Onslaught FastCap per gallon of water and make applications as a crack and crevice spray in and around residential and commercial structures, or on turf and landscaping, according to label instructions.

    Please refer to the product Onslaught FastCap product label for complete application instructions and use restrictions.

    Not For Sale To: CT, VT

    EPA Registration: 1021-2574