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0550 Tonkawa Road - 05-117-23-32-0004/6
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8/22/2023 3:12:58 PM
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0550 Tonkawa Rd
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Meadow plant community, invasive plant cover has been reduced to 40%(Table 3a). The <br /> combined cover of these two invasive species in the Deep Marsh was approximately 10.5%I <br /> (Table 3b). The primary invasive plant in the Enhanced Lowland Forest was reed canary grass <br /> (15%,Table 3c). <br /> When it was seen that purple loosestrife was emerging from the seedbank in Summer 201 , <br /> AES manually collected purple loosestrife beetles(Galerucella pusma)from Twin Cities <br /> collection sites recommended by the Minnesota Department of Natural Resources. On August <br /> 20, 2015, approximately 350 beetles were released at the Nelson Restoration site. It is hoped <br /> that these beetles will overwinter successfully at the site, reproduce, and spread througho�lt <br /> the wetland. If the beetles become established at the site, it is expected that in the coming <br /> years they will help provide effective biocontrol of purple loosestrife. This biocontrol strategy <br /> has proven successful at other wetlands in the Twin Cities, including at nearby Ferndale Marsh, <br /> which was dominated by purple loosestrife in the 1990s. <br /> Following our September 2, 2015 monitoring visit, almost all purple loosestrife flowers were <br /> clipped and removed from the site to prevent them from producing or setting seed. The focus <br /> of 2016 management will be on the aggressive control of any remaining purple loosestrife, <br /> cattail, and reed canary grass. The site's enhanced upland buffers will also continue to be <br /> managed for upland invasive species, especially common buckthorn seedlings and narrowlef <br /> bittercress. <br /> FUTURE MANAGEMENT <br /> The majority of wetland restoration work was completed in 2014 and 2015. Continued <br /> attention and effort will be required to control invasive plant species in the wetland while the <br /> native species expand their coverage and establish dominance at the site,which will reduce the <br /> invasion rate of undesirable species in the future. Management activities scheduled for the <br /> Nelson Restoration site are shown in Table 6. <br /> Table 6. Future ecological management activities <br /> Timeframe Activity <br /> Winter 2015-16 Install remaining wetland native seed mix native and upland forest seed mix <br /> 2016-2017 Aggressive spot spraying and spot mowing of invasive vegetation in and around th <br /> wetland <br /> 2016-2025 Continued management of two rain gardens <br /> Summer 2016 Installation of wood duck nest boxes and bat house <br /> Spring-Fall 2016 Continued wildlife monitoring and reporting <br /> 2016-2017 Continued ecological monitoring and reporting <br /> MN Board of Water and Soil Resources <br /> Nelson Restoration Site(12-0975)—2015 Monitoring Report 11 <br />
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