Trichogramma ostriniae to control the European corn borer in peppers


Trichogramma wasps specialize in parasitizing lepidopteran (moth and butterfly) eggs. The adults are tiny, measuring less than 1 mm. After mating, females actively seek lepidopteran eggs and lay their eggs inside. The trichogramma larvae develop and feed on the pest embryo. As they develop, the Trichogramma larvae kill the pest’s egg, solving the problem right at the source. A new generation emerges after 2 weeks.

Tricho-Peppers® use a species of Trichogramma wasps (Trichogramma ostriniae) specifically selected for maximum results in suppressing European corn borer eggs in sweet corn, sweet and hot peppers and hop. In Canada, the use of moth egg parasites is practiced by several producers to control this pest. This method reduces the application of insecticides and % of damaged fruit.

Using Trichogramma wasps in agriculture is safe for humans, animals, plants and the environment. It’s nature at your service!


This product can be purchased on our online store for producers under 2000 ft2 or residential. For a commercial purchase (2000 pi 2 and more), contact us.

Targeted crops

  • Sweet peppers
  • Hot peppers
  • Hop

Targeted pests

  • European corn borer (Ostrinia nubilalis)

Life cycle

  • Optimal conditions are a temperature between 18 and 30 ° C and a relative humidity between 50 and 80%.
  • A female lays 60 eggs over a period of several days.
  • The emergence of Trichogramma is achieved after 2-4 days depending on the room temperature.
  • The eggs parasitized by Trichogramma blacken after 4-6 days. New adults emerge after 3-6 days depending on the room temperature.



  • 4 000 Trichogramma ostriniae pupae

Introduction rate

Tricho-Peppers (tiny wasps called trichogramma)
Crops Quantity Surface Frequency Duration
Peppers and Hop 1 card of
4 000 T. ostriniae pupae
100 m2 week 5 weeks

Product data sheet(s)

Fiche signalitique

Additional information

  1.   - Trichogramma pupae spraying and mechanical application of predatory mites (Anatis Bioprotection, 2017)
  2.   - Potential of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) for biological control of European corn borer (Lepidoptera: Crambidae) in solanaceous crops (Journal of Economic Entomology, 2004)
  3.   - European Corn Borer in Sweet Corn and Other Horticultural Crops (OMAFRA, 2017)

Targeted pest

Targeted production

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