An expansive infestation should be contained by preventing the edges from advancing, with long-term control efforts, such as biological control, focused on the core. Schools, conservation groups, outdoor recreation groups, nature centers, and extension programs can inform the general public about invasive plant impacts. Interest groups and others could sponsor weed roundup activities to eradicate small or newly discovered infestations. Studies are needed to determine what conditions make ecosystems vulnerable to invasion so these conditions can be considered in preventing the spread of invasive plants. For many large invasive plant infestations, more work is needed to identify suitable integrated invasive plant management techniques for use in natural resource areas.
Mules carry equipment into remote areas to conduct selective spraying.
Catching small infestations early is the most effective approach. Theodore Roosevelt National Park in North Dakota treats moderate-sized areas of leafy spurge in remote areas to prevent the plant from expanding or spreading.