Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract Full Text

Rapid response to the discovery of olive hymenachne (Hymenachne amplexicaulis (Rudge) Nees) on Rinyirru (Lakefield) National Park.


Olive hymenachne, a Weed of National Significance, was found for the first time on Rinyirru (Lakefield) National Park in February 2011. The response by Queensland Parks and Wildlife Service has been rapid and thorough. Circumstantial evidence suggests that the plant may have reached the park by bird dispersal from a source outside the park. The current extent of the infestation has been delimited at high resolution and an integrated control program, with the aim of eradicating the species from the national park, has commenced. The steps being taken towards this end are outlined and discussed. This response aligns with the goal of eradication from Cape York Peninsula outlined in the national zoning strategy for this species. The success of the program may depend more on solving logistical problems associated with accessing populations year round than any other issue.