Wings of Trichogramma chilonis, an important biocontrol agent

Trichogramma chilonis is one of the most widely used biocontrol agents in India. This minute parasitoid is capable of parasitising the eggs of a number of lepidopteran pests on a variety of agricultural crops. [Specimen obtained from Omprakash Navik]


4 Comments Add yours

  1. Manu Prakash says:

    Stunning. If the entire wing is so small; this must be a very small prasitoid. I am curious; how is it released; does it fly normally. What numbers/quantities is it released in the field – do farmers know about it.

    Beautiful work.


    1. Sreerama Kumar Prakya says:

      Hi Manu,
      Many thanks for your comments! I am sorry that I couldn’t clarify your doubts immediately. Yes, Trichogramma species are one of the minutest of insects, but with the greatest of potentials. They have been in use as biocontrol agents in agriculture and horticulture for many decades across the world. In India, we use them on sugarcane, rice, coconut, vegetables and several other crops to control various pests. Trichogramma species are released in the field by placing cards embedded with parasitised eggs (of some laboratory insect hosts). They emerge from the eggs and try to locate the eggs of the pest in the field to parasitise. The usual dosage would be 50,000 to 100,000 parasitised eggs per hectare. Farmers are well aware of Trichogramma. Organic agriculture is catching up, and Trichogramma is an integral part of this movement.
      Sreerama Kumar

    1. Sreerama Kumar Prakya says:


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