• Biological Insecticide

Natural Control of Corn Earworm

Hearken® biological insecticide is a virus that targets Heliothine species, such as corn earmworm, tobacco budworm and the Old World bollworm. Used as a foliar application, Hearken is safe for beneficial and non-target organisms and complements traditional chemistries to easily fit within integrated pest management programs.


OMRI issued certificate


Controls Heliothine Species Across Generations

Heliothine Species lifecycle illustration

Hearken® biological insecticide is a virus that infects larvae through ingestion. On death, larvae liquify and release millions of virus particles to infect other larvae.

Larvae with sub-lethal infections – typically larger larvae – transmit infection to their offspring hence reducing their biological fitness to continue the life cycle for the next insect generations.

Safe for Non-targeted Organisms

Grain sorghum

The virus that infects Heliothine species does not impact beneficial or non-target organisms, meaning you can apply with confidence.

Tank Mix Compatible

Tractor spraying soybean field

Designed to fit within integrated plant protection systems, Hearken is tank mix compatible with most common used insecticides, fungicides and liquid fertilizers.



Hearken® biological insecticide is an effective on the following crops:

  • Alfalfa
  • Field Corn
  • Popcorn
  • Sorghum
  • Soybeans


Controlled Pests

Controls Heliothine species including:

  • Budworm, Tobacco (Heliothis virescens (Helicoverpa virescens))
  • Earworm, Corn 
  • Old World bollworm (Helicoverpa armigera)

Refer to the Product Label for complete product efficacy information.

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State Registrations

  • Registered
  • Unregistered
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Hearken® biological insecticide is not for sale or use in all states. Contact your state pesticide regulatory agency to determine if a product is registered for sale or use in your state. Always read and follow label directions.