10/26/2011 Env Bd Packet - Laserfiche WebLink

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ENVIRONMENTAL BOARD MEETING September 28, 2011 the Ash trees provided for Lino Lakes. The City will remove all public Ash trees using City Crews 2. Remove /Replace all City Ash trees. This option removes and replaces every Ash tree with a new tree that As# borer acceptable to the City Forester. This plan is the least costly way to manage the Lino Lakes Ash forest and allow the urban forest it to regain its former size. The City will utilize City crews to remove and replace all City Ash Trees 3. Treat City Ash trees with insecticide. This plan has the lowest annual out of pocket costs, but it has the greatest cost over time. It also produces the largest remaining forest over time. Research demonstrates that insecticides can protect small trees < 12" in diameter until they reach a 15 inch diameter. Effective treatment of larger trees would require either a more frequent application, or a higher dose ofinepestive insecticide. Research as of 3.8.2010 shows one application of insecticide will treat a tree W.-at-least possibly up to 3 years. The City will utilize City personnel who have been trained and licensed in treatment for EAB, to treat City trees chosen to be treated. 4. Combination o€-the Treating-at-least-the middle range of City tree size also givec4he-City timeta spread our losses over a muct+ bly el losses for treated trees. Treated trees -to trees in geed vigor with-geed-form, Poor formed trees or trees in declining- - ehould-be removed-a& soon aspossible. Natural sentrels-with insects, genetic selection and manipulationr all -take The estimated -time-to achieve- success in- one of these areas is-24 years filial-FRLI-R1-. Administration The City Forester shall coordinate efforts with the Public Works Department, the Minnesota Department of Agriculture and /or the Minnesota Department of Natural Resources, Anoka County, and St Paul District Energy to seek assistance for the removal, disposal, replacement, and treatment of City Pia-r4 Ash trees. Furthermore the City Forester shall enforce the City Shade Tree Disease Control Ordinance and assist and educate the public in private Ash tree disposal. The disease control ordinance shall be an integral part of this plan. City Park and Boulevard Tree Management Recommendations Protocol First remove all poorly formed and defective City owned Ash trees. Recommended wooed-we for-City Ash Trees +s reraovat of aft-poorly- DRAFT MINUTES 4