Most houses in New Zealand are built from pine, and it is a multimillion dollar export industry for New Zealand.
If nun moth were here, their caterpillars would strip pine trees of all their leaves (needles) which reduces the tree's growth and could even kill the tree. What would we use for building then?
The female moths lay up to 300 eggs in crevices of wood, so make sure to always declare wooden products when coming to New Zealand.