Knack® Insect Growth Regulator

  • Long residual: keeps whitefly populations from exploding
  • Soft chemistry—easy on beneficial insects
  • Translaminar activity: reaches whiteflies where they feed

Knack IGR. First, because it lasts.

To protect your valuable crops from whiteflies and the damage and viruses they can vector, you need Knack. This impressive IGR from Valent provides unmatched control of sweet potato and silverleaf whiteflies in cotton, tomatoes, peppers, brassica leafy vegetables and cucurbits. Knack has translaminar activity, so it reaches whiteflies where they feed—under the leaves–and it delivers long–lasting control. Plus, its highly targeted soft chemistry is a good fit for IPM and Insect Resistance Management (IRM) programs. Read more»

Download Label/SDS
Download Label/SDS for Knack Insect Growth Regulator.

Pests, Crops and State Registrations

- Key crops/pests



  • cotton
  • vegetables
  • bushberries
  • citrus
  • cucurbits
  • tomato


  • sweet potato whitefly
  • silverleaf whitefly
  • banded wing whitefly
  • greenhouse whitefly

State Registrations*

  • Alabama
  • Arizona
  • Arkansas
  • California
  • Colorado
  • Connecticut
  • Delaware
  • Florida
  • Georgia
  • Hawaii
  • Illinois
  • Indiana
  • Kentucky
  • Louisiana
  • Maryland
  • Massachusetts
  • Michigan
  • Mississippi
  • Missouri
  • Nevada
  • New Hampshire
  • New Jersey
  • New Mexico
  • North Carolina
  • Ohio
  • Oklahoma
  • Oregon
  • Pennsylvania
  • Puerto Rico
  • Rhode Island
  • South Carolina
  • Tennessee
  • Texas
  • Vermont
  • Virginia
  • Washington
  • Wisconsin

  • Download Literature

    View and/or save any available product quicksheet(s) or brochure(s) in pdf format.

  • Label/SDS

    Download Label/SDS for Knack Insect Growth Regulator.

  • Contact Valent

    Have a question about Knack Insect Growth Regulator?

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