Effective against vine weevil larvae, even at low temperatures

What is Kraussei-System?

  • Microscopically small worms of the species Steinernema kraussei
  • Contains an insect-killing symbiotic bacterium
  • Effective in a temperature range between 5°C and 30°C

What are the benefits of Kraussei-System?

  • Knockdown effect caused by super-fast control
  • Wide application window (from February to November)
  • Long-term protection against soil-dwelling vine weevil larvae
  • Efficient at both cold and warm soil temperatures
  • No side effects on beneficials
  • Safe for people and environment

Which pests does Kraussei-System control?

  • Vine weevil larvae (Otiorhynchus sulcatus)

How does it control pests?

  • Infectious juvenile nematodes penetrate the host through natural orifices
  • Once in the body cavity, the symbiotic bacteria are released
  • The symbionts kill the host within 24 to 48 hours
  • The nematodes multiply in the cadaver
  • New infectious nematodes leave the cadaver in search of other pests

In which crops is Kraussei-System effective?

  • Both in outdoor and container crops
  • Tree nurseries
  • Soft fruits

Want to know more? Contact your Biobest advisor for tailored advice. 


Kraussei-System is delivered as a gel formulation in the following units:

  • 5 million nematodes
  • 50 million nematodes
  • 250 million nematodes

Local regulations may impose restrictions on the use of this product. Contact your authorities or contact your Biobest consultant.
We produce our products and solutions for professional growers in horticulture.

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