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   Ageratum conyzoides (herb)
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    Details of this species in South East Asia
    Status: Alien
    Invasiveness: Invasive
    Occurrence: Established
    Source: Kato-Noguchi 2001
    Arrival Date:
    Introduction:
    Species Notes for this Location:
    Ageratum conyzoïdes, an annual invasive weed from tropical America, has now naturalised worldwide, particularly in South East Asia, including India, China, Japan, Indonesia and Korea (Kohli et al.2006, Kong et al. 2004, in Batish et al. 2009a).
    Management Notes for this Location:
    Location Notes:
    Impacts:
    Agricultural: A. conyzoides is one of the most dominant weeds in upland crop areas of South East Asia (Kato-Noguchi 2001).
    Disease transmission: Weed species are believed to act as reservoir hosts for many economically important plant viral diseases. A. conyzoides, a weed that occurs throughout South East Asia, frequently exhibits yellow vein symptoms that are associated with infection by Ageratum Yellow Vein Virus (Saunders et al. 2000).
    Last Modified: 27/11/2009 12:08:16 p.m.


ISSG Landcare Research NBII IUCN University of Auckland