- People are major
dispersers of plants.
- The magnitude
of this dispersal is unprecedented and has allowed dispersal of species
that manifest aggressive traits in new areas.
- Plant introduction
and improvement are the foundation of modern agriculture and horticulture,
yielding diversity to our supply of plants used for food, forestry,
landscapes and gardens, medicinal and other purposes.
- A small proportion
of introduced plant species become invasive and cause unwanted impacts
to natural systems and biological diversity as well as economies,
recreation, and health.
- Plant species
can be invasive in some regions, but not in others.
- The impacts of
invasive plant species can occur at times and places far removed from
the site of introduction.
(a.k.a. The St. Louis Six)
- Plant introduction
should be pursued in a manner that both acknowledges and minimizes
- Efforts to address
invasive plant species prevention and management should be implemented
consistent with national goals or standards, while considering regional
differences to the fullest extent possible.
- Prevention and
early detection are the most cost effective techniques that can be
used against invasive plants.
- Research, public
education and professional training are essential to more fully understanding
the invasive plant issue and positively affecting consumer demand,
proper plant use, development of non-invasive alternatives, and other
- Individuals from
many fields must come together to undertake a broad-based and collaborative
effort to address the challenge, including leaders in horticulture,
retail and wholesale nurseries, weed science, ecology, conservation
groups, botanical gardens, garden clubs, garden writers, educational
institutions, landscape architects, foundations and government.
- A successful
invasive plant species strategy will make use of all available tools
including voluntary codes of conduct, best management practices, and
appropriate regulation.Codes of conduct for specific communities of
interest are an essential first step in that they encourage voluntary
initiative, foster information exchange, and minimize the expense