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  • How can you tell if wasp cards hatched?

    Created by terry pierce on

    I set out my wasp cards and they look no different now as when I got them except now I have caterpillars. Would rain affect the hatch.

  • Author
  • #150081

    Eric Vinje

    Rain will not affect the hatch… but if you have a large number of ants they will feed on the eggs. By the way, the parasitized moth eggs on the cards will not change in appearance. The tiny trichogramma wasps will exit the eggs through a tiny hole — you’ll be able to see the exit holes with a magnifying glass.

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