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Mounds View Silver View Park Pond <br /> diminished, a seed mix with native grasses, sedges, and broadleaf flowers can be sown to add diversity, <br /> functionality, and resilience. <br /> 4.1.3 HERBACEOUS WEED CONTROL <br /> Herbaceous weed spot treatments are recommended for reducing cover by invasive plants and <br /> problematic weeds such as Canada thistle, leafy spurge, purple loosestrife, creeping Charlie, garlic <br /> mustard, burdock, motherwort, nonnative cattail, reed canary grass, and smooth brome. Treatment for <br /> some of these species may be combined with broadcast spraying as part of site preparation for native <br /> seeding/planting. As with invasive shrub control, multiple treatments should be anticipated. For the <br /> herbaceous weeds, successful control may require multiple treatments within one growing season and for <br /> at least 2-3 growing seasons. <br /> The specific control methods used, including herbicide selection and timing, will be species-dependent. <br /> Treatments should involve the most selective herbicides applied at the lowest effective rates for control <br /> based on herbicide label recommendations. Herbicide applications to flowering target species should be <br /> avoided when pollinators are highly active. Purple loosestrife is extremely abundant through the wetland <br /> complex, so biocontrol may be the best option for larger-scale control combined with spot herbicide <br /> applications to scattered individuals around the pond shorelines. Biocontrol will not eliminate purple <br /> loosestrife and effectiveness varies from year to year, but it can reduce total purple loosestrife cover for <br /> enabling better expression of native herbaceous plants. <br /> 4.1.4 NATIVE SEEDING <br /> Native seeding is recommended to enhance ground layer vegetation cover throughout the project area. <br /> No site preparation, other than weed spot treatments, may be needed in areas with some existing native <br /> vegetation. Spring seeding native woodland grasses and sedges is effective for woodland areas. The <br /> seeds will germinate during the growing season. For broadleaf seed mixes, fall seeding is recommended <br /> to enhance germination for many native broadleaf wildflowers. Other than monitoring establishment, no <br /> other grow-in maintenance activities are needed are than weed spot treatments while the herbaceous <br /> plants establish in woodland and lowland hardwood areas. <br /> Lawn areas planned for conversion to native plantings will require site preparation prior to seeding. Site <br /> preparation may involve a combination of broadcast spraying with a non-selective herbicide such as <br /> glyphosate to kill the existing sod, and light soil scarification. Mowing will be required during the first <br /> growing season after seeding to aid establishment of the native seedlings. Establishment monitoring will <br /> determine whether mowing is needed during the second growing season. At a minimum, spot weed <br /> mowing and spot herbaceous weed treatments should be anticipated for grow-in maintenance for native <br /> ground cover establishment during the second and third growing seasons. <br /> Project Number: 193806465 21 <br />