Laserfiche WebLink
3. Tree Replacement <br /> a. Annual tree replacement will be accomplished through the shared resource of <br /> the Gravel Tree Bed Nursery. The SWCD will be available to work with city staff <br /> (identify who)to determine priority planting locations. The City and SWCD will <br /> train, supervise and work with volunteers to plant gravel bed grown trees in late <br /> September through early November. <br /> b. Species grown in the gravel bed will be selected from the list of"Recommended <br /> trees for Southeast Minnesota: An Ecosystem Approach" by Gary R. Johnson, <br /> University of Minnesota Extension Service — Urban and Community Forestry & <br /> Katie M. Himanga, Heartwood Forestry. <br /> c. Bare root stock will meet the MnDOT 3861 Plant Stock Specification available at <br /> http://www.dot.state.mn.us/pre-letting/spec/2000/sp3861.pdf <br /> d. All trees will be planted according to MnDOT 2571 Plant Installation Specification <br /> available at http://www.dot.state.mn.us/pre-letting/prov/order/2571.pdf <br /> e. After planting, up to the time of killing frost the SWCD will establish <br /> communication with staff(identify who) and volunteers to ensure adequate <br /> watering of new trees. <br /> f. The SWCD may annually request sufficient funds to purchase bare root stock for <br /> spring gravel bed installation. <br /> 4. Insecticide Treatment of Trees <br /> Insecticide may be considered for ash trees in good condition that are providing <br /> ecological services when EAB has been detected within 15 miles. This will be useful to <br /> stagger removals and reduce EAB populations—not to save trees in perpetuity. <br /> a. Large (>8" dbh) ash on public property that are a significant component of the <br /> urban infrastructure will be considered for treatment with Emamectin benzoate. <br /> Bids will be solicited to certified arborist for application to selected trees. <br /> b. Small (<8" dbh) ash on public property that are providing ecological services and <br /> are in good condition may be treated with imidacloprid by city/county staff that <br /> are licensed as chemical applicators. <br /> Treatment will be considered for high priority trees and will not be used on hazard <br /> trees, those planted in poor locations, those that have a poor condition rating or are <br /> causing damage to infrastructure. <br /> As of 2013, the average cost for treatment: <br />