Controlling Japanese knotweed is possible! Proof can be seen along the Saltsburg section of the West Penn Trail.
Back in 2000, the trail’s operator the Conemaugh Valley Conservancy and The Western Pennsylvania Watershed Program collaborated on the first efforts within the region to remove the knotweed. This pilot project gave birth to Natural Biodiversity and became the prototype demonstration of invasive-plant control.
In a 33 sq. ft. study plot, only one plant was found in 2000: Japanese knotweed. Over the next three years, twice-yearly herbicide treatments reduced the knotweed by 98%. By 2003, there were 21 plant species found in the study plot.
Today, diversified plant species are re-established and
only spot-herbicide treatments are needed.
Natural Biodiversity’s five-year experience with this study
plot on the West Penn Trail also revealed the importance of
planting as part of an overall site-management plan.
Natural Biodiversity | P.O. Box 54 | Ebensburg, PA 15931
Voice: 814-650-7556 | E-mail: NBD_Staff@naturalbiodiversity.org
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