Hypericum androsaemum L. (tutsan) invades pastures and natural ecosystems in high rainfall areas of south-eastern Australia. The rust fungus Melampsora hypericorum was detected in Australia in 1991 and drastically reduced the extent of H. androsaemum populations in some areas. The impact of the...

Salvia verbenaca L., wild sage (Lamiaceae) is native to western and southern Europe. In Australia S. verbenaca is considered an environmental weed with high invasiveness often growing on disturbed sites: tracks, roadsides and around earth tanks. Little is known about the ecology of this invasive ...

Plant species that are native to Australia can be significant weeds of primary production and the environment, both within and outside their endemic ranges. Of the 6049 taxa native to New South Wales, over 165 (2.7%) are considered to be weedy within their indigenous range. With only one exception, ...

Australia commenced a small biocontrol project against the South American invasive, Madeira vine, Anredera cordifolia (Basellaceae), following the finding of two potential agents in Argentina by South African and local scientists. Two beetle species (Coleoptera: Chrysomelidae) were then imported...

The biological attributes of two invasive weed species, prickly paddy melon and camel melon, were studied in different disturbed habitats of the Riverina region, NSW during 2010-2011. Seedlings first germinated in early to mid November 2010, once optimal soil temperatures were achieved. Flowering...

Alligator Weed [Alternanthera philoxeroides (Mart.) Griesb] is acknowledged as the aquatic invader that poses the largest threat to Australian waterways and moist, terrestrial habitats. Despite control efforts over several decades, alligator weed is now widespread across NSW, and occurs as sporadic ...

Pasture has been an integral component to the success of mixed farming systems in southern Australia. However, heavy infestation of fleabane in pasture paddocks has become common in southern NSW. Currently no registered products are available for fleabane control in lucerne based pastures, thereby...

Geographically distinct populations of Paterson's curse (Echium plantagineum L., Boragineacea), found near roadsides across NSW and VIC were surveyed along 3 distinct longitudinal transects in July/August and November/December 2011 for presence of introduced biocontrol agents in shoots, roots or...

Effective control of invasive weeds such as serrated tussock (Nassella trichotoma) requires collective action by land managers across the landscape. We explored the impediments to adoption of weed control practices amongst private and public land managers, and the potential of collective action...

Fireweed (Senecio madagascariensis) continues to spread in coastal pastures in south eastern Australia, as well as onto the Northern and Southern Tablelands of NSW and in South-East Queensland. This paper details the key findings of a national survey of landholders conducted in late 2011 to...