Economic impact of invasive species: control costsIt is estimated that weeds cost Australia at least $3.3 billion a year in lost agricultural production and weed control; this figure does not take into account any environmental cost. Nationally $12 million has been provided by the federal government to combat the 20 weeds identified as weeds of national significance. In NSW alone, the 2002-2001 budget for noxious weed management was $6.7 million and has shown a steady increase in recent years. In the Northern Territory the pastoral industry is worth approximately
$180 million a year. Losses due to Mimosa pigra invasion and
control are estimated at $13 million annually. |