Ragwort is a highly toxic pasture weed, causing liver damage in cattle and horses. The cinnabar moth was introduced in 1929 as a biological control against the plant. Over the years its caterpillars, which feed on ragwort leaves, have managed to control the spread of the plant in some parts of New Zealand.
Te whakamahi i tēnei tūemi
Natural Sciences Image Library of New Zealand
Photograph by Dick Roberts
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