Trichogramma wasps card hang on a corn plant to control European corn borer


trichogrammes Tricho-Corn® is a natural product used to control the European corn borer (Ostrinia nubilalis) in outside commercial production of Sweet corn, Cannabis and Hemp. Inside each Tricho-Corn card, there are 8000 Trichogramma pupae of Trichogramma ostriniae. This species has been selected for maximum results in suppressing European corn borer eggs.

Trichogramma are tiny wasps (1 mm) that parasitize moth eggs. In agriculture, they are used to control more than 200 moth and butterfly pest species.

Trichogramma ostriniae pupae are glued to cards and introduced in field. Once set up, adult trichogramma will emerge after 2 to 7 days, depending on environmental conditions. Upon emergence, the female Trichogramma wasps will actively search for moth eggs on the surface of the leaves. Once detected, she lays her eggs inside them. The Trichogramma larvae will grow inside the moth eggs and feed on the future corn borer larvae in formation. This will cancel the future generation of corn borer.


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 corn
  • Cannabis
  • Hemp

Targeted pests

  • European corn borer (Ostrinia nubilalis)
  • Western bean cutworm (Striacosta albicosta)

Life cycle

  • The optimum conditions are a temperature between 18 to 30 ° C and a relative humidity from 50 to 80%.
  • Trichogramma adults emerge after 2 to 7 days, depending on temperature.
  • A female parasites 50 Corn borer eggs during her lifetime.
  • New adults emerge after 8 to 14 days, depending on ambient temperature.



  • A0001 - Tricho-Corn - card of 8000 pupae Trichogramma ostriniae - 20 to 99 cards
  • A0002 - Tricho-Corn - card of 8000 pupae Trichogramma ostriniae - 100 cards and +
  • 10% discount on large volume of Tricho-cards (250 cards +)



Release should start as soon as soon as moths are first detected (pheromone lure traps) or in mid-june (for the Univoltine generation). If Trichogramma wasps are not released before laying period, they can not prevent the development or larvae (= damage).

The introduction depends of the crop area. Trichogramma wasps must be uniformly distributed (by length and width). A bad distribution would cause unprotected areas.

The first card is placed 7 meters from the edge of the ?eld and the next one every 7 meters. For example, for a plot of 100 meters by 100 meters:

100 m wide/ 14 m = 7 introduction rows*

100 m long/ 14 m = 7 cards per introduction row*

*Round to the nearest unit.

Put new cards avery week from the moth emergence until the end of his cycle. In general, 5 weeks are sufficient. To prevent removal of trichogramma not emerged, keep the card in field for minimum of 3 consecutive weeks.

Introduction rate
Crops Quantity Surface Frequency Duration
Sweet corn, Cannabis and Hemp 1 card 200 m2 or 2 153 sq. ft week 5 weeks minimum
Sweet corn, Cannabis and Hemp 20 cards 1 acre week 5 weeks minimum
Sweet corn, Cannabis and Hemp 50 cards 1 hectare sweek 5 weeks minimum

Product data sheet(s)

Fiche signalitique
Tricho-Corn for Cannabis/Hemp

Fiche signalitique
Tricho-Corn for Corn

Additional information

  1.   - Biological control of eurpean corn borer with trichogramma is effective and cheaper than with chemical insecticides (Anatis Bioprotection, 2017)
  2.   - Application of trichogramma by drone an economical and effective solution for controlling the european corn borer (Anatis Bioprotection, 2017)
  3.   - Trichogramma pupae spraying and mechanical application of predatory mites (Anatis Bioprotection, 2017)
  4.   - Potential of Trichogramma ostriniae (Hymenoptera: Trichogrammatidae) for biological control of European corn borer (Lepidoptera: Crambidae) in solanaceous crops (Journal of Economic Entomology, 2004)
  5.   - European Corn Borer in Sweet Corn and Other Horticultural Crops (OMAFRA, 2017)

Targeted pest

Targeted production

Recent news

Did you know


Aphids, thrips and whiteflies are pests capable of breeding by parthenogenesis (without male fertilization).

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