Control of Rauvolfia Vomitoria in North Kohala

Management of the globally-incipient invasive tree Rauvolfia vomitoria on both public and private land with the goal of stopping the spread and reducing the population.
KWP Partners:

Other Partners:

  • BIISC, NRCS, UH-CTAHR, Pacific Plains, New Moon Foundation


  1. Map the infestation (approx. 10,000 acres)
  2. Patrol boundaries and control outliers
  3. Inform conservation community and local community about the plant
  4. Reduce population to core infestation area
  5. Control spread to other areas on the island and in the State
  6. Conduct basic research on phenology, growth rates, control methods.

Total Annual Budget:

  • $500,000


  • State of Hawaiʻi, U.S. Forest Service
A typical infestation of Rauvolfia vomitoria

A typical infestation of Rauvolfia vomitoria. This invasive tree forms solid thickets, shading out other vegetation.

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