Long-term treatment leads to reduction of tree-of-heaven (Ailanthus altissima) populations in the Buffalo National River
Autor: | Lloyd W. Morrison, Jordan C. Bell, Craig C. Young |
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Rok vydání: | 2020 |
Předmět: |
0106 biological sciences
Ailanthus altissima Long term treatment biology National park Triclopyr 04 agricultural and veterinary sciences Plant Science Imazapyr Point mapping biology.organism_classification 010603 evolutionary biology 01 natural sciences Invasive species Toxicology chemistry.chemical_compound chemistry 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Fluroxypyr |
Zdroj: | Invasive Plant Science and Management. 13:276-281 |
ISSN: | 1939-747X 1939-7291 |
Popis: | In this case study, we used point mapping data to evaluate long-term treatment of invasive tree-of-heaven [Ailanthus altissima(Mill.) Swingle]. This study at the Buffalo National River included 21 project areas ranging in size from 0.02 to 11.3 ha and spanned 5 to 8 yr depending on the site. The control techniques varied depending on the year and included the application of herbicide, which also varied over the course of the study and included imazapyr, triclopyr, and triclopyr+fluroxypyr. Treatments during the first year reduced localA. altissimapopulations by an average of 66%. Long-term repeated treatments led to decreases of at least 90% in 70% of the project areas and at least 73% in 95% of the project areas. Only one project area was found to support no plants during the final treatment year.Ailanthus altissimaincreased at most project areas during an unusually wet year and was more likely to increase than decrease in intervals >1 yr with no treatment. Over the temporal and spatial scales of this case study, we observed high levels of control that will likely meet the specified levels and ecological benefits required in many similar efforts. Land managers must, however, make a long-term commitment of resources to achieve lasting control of this invasive species. |
Databáze: | OpenAIRE |
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