Story: Biosecurity



Biosecurity aims to reduce the introduction of new pests, weeds and diseases into New Zealand. Ragwort, now a common farm weed, was probably introduced accidentally with pasture grasses. It was first recorded growing wild in 1874, and rapidly spread throughout the country, especially where cattle and horses were grazed.

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How to cite this page:

Helen Keyes and Carl Walrond, 'Biosecurity - Definitions and history', Te Ara - the Encyclopedia of New Zealand, (accessed 21 September 2021)

Story by Helen Keyes and Carl Walrond, published 24 Nov 2008