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   Chromolaena odorata (herb)
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    Details of this species in Papua (Irian Jaya)
    Status: Alien
    Invasiveness: Invasive
    Occurrence: Reported
    Source: Wilson, C.
    Arrival Date:
    Introduction:
    Species Notes for this Location:
    Management Notes for this Location:
    Under an ACIAR program with Indonesia, a stem-gall fly Cecidochares connexa was released as a biocontrol agent against Chromolaena odorata in about 1996-97 in Jayapura in Papua. It established readily and is spreading, and is I believe resulting in effective control of the weed in the release areas. This gall fly can be readily distributed to new areas by cutting 10 cm lengths of stem with large galls containing mature larvae, and simply putting these out among bushes in the new area. This should be done during the wet season but not before flowering, as the adults won't lay in flower buds. Flowering is probably July in Papua, therefore the last date for releases would be about March. Further information on this program or on the gall fly can be got from me or from michael.day@nrm.qld.gov.au .The same agent has been released in Papua New Guinea and several islands of the Marianas and Pacific (McFadyen R. Pers. Comm., July 2003).
    Location Notes:
    Last Modified: 15/10/2003 10:24:41 a.m.
ISSG Landcare Research NBII IUCN University of Auckland The Global Invasive Species Database is managed by the Invasive Species Specialist Group (ISSG) of the IUCN Species Survival Commission. It was developed as part of the global initiative on invasive species led by the Global Invasive Species Programme (GISP) and is supported through partnerships with the National Biological Information Infrastructure, Manaaki Whenua-Landcare Research and the University of Auckland. Conditions of use.