As the Forest Botanist and Non-native Invasive Plant Coordinator for the National Forests in Virginia I see the negative impacts of non-native invasive plants on the natural environment.  Some of the most damaging plants were introduced as being beneficial to wildlife such as autumn olive, multiflora rose and the bush honeysuckles.  Others have been introduced accidently or have escaped from cultivation.  Whatever their source, the U.S. Forest Service is spending a great deal of time and money to try to control non-native invasive plants.  The Arlington Plan suggests using the Virginia Division of Natural Heritage list of invasive plants as a starting place from which to develop a list of plants that are so invasive, expensive to control, and having such a negative impact on the natural environment that they need to be restricted from sale.  The expertise of the Virginia Division of Natural Heritage is a tremendous asset and should be utilized.  Non-native invasive plants are a huge problem in Virginia and elsewhere, regardless of their source.  State and federal agencies, the nursery industry, and private citizens all share the responsibility of preventing the introduction of new invasive plant species and for controlling existing infestations.