About Invasive Plant Management

The benefits of managing invasive species on islands are more than just conservation of biodiversity; their management can also have significant economic and health benefits. The greatest economic benefit occurs when an invasive plant species is prevented from arriving, or detected and successfully eradicated from an island before it establishes.  The plant must be detected at the earliest opportunity and destroyed before producing seeds or propagules.


Many areas with vegetation of high biodiversity value are used for tourism ventures, the economic mainstay of many Pacific countries.  These include marine areas where invasive seaweeds or other organisms could threaten the unspoilt image of the location. Management of invasive plants at these areas can protect these income streams.

Invasive plants can also reduce yields in cash crops, subsistence crops or pastoral areas and there is likely to be additional hardship to people through the extra labour and costs required to manage the invasive species. Effective invasive plant management can protect the economic well-being of people.


Medicinal (or cultural or other valued plants) can be protected from losses due to invasive plants (e.g. smothering) by the implementation of an effective management programme.  

Other benefits of invasive plant management   Other benefits of invasive plant management 2
The degraded forest around popular tourist walking and bird watching tracks is being replanted with native species.
(Photo: Bill Nagle)
  The mountainous landscapes of Tahiti are a magnet for tourists in French Polynesia.
(Photo: John Mather)