Parthenium weed
Primefact Number: 707 Edition: First edition Released/reviewed: 01 Sep 2008
Parthenium weed (Parthenium hysterophorus) is regarded as one of New South Wales (NSW) most serious weed threats.
It is native to the Carribean region and is thought to have been introduced to Australia from the USA on machinery during World War II and as a contaminant of imported pasture seed during the 1950s.
Parthenium weed is a Weed of National Significance (WoNS).
It is a vigorous coloniser of bare ground, degraded pastures and disturbed sites.
It is a fast growing annual plant with prolific seed production.
Once established, parthenium weed very quickly builds a huge seed bank in the soil that makes eradication difficult and expensive.
This Primefact covers the following topics:
- Distribution
- Description
- Lifecycle
- Spread
- Impact
- Control
- Biological control
- Legislation.
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