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July 28, 2010 <br />has the lowest out of pocket expense. This plan also causes the greatest losses <br />to aesthetic and ecological value that the Ash trees provided for Lino Lakes. <br />2. Remove /Replace all City Ash trees. This option replaces every Ash tree with a <br />new tree that won't get Emerald Ash borer. This plan is the least costly way to <br />manage the Lino Lakes Ash forest and allow it to regain its former size. <br />3. Treat City Ash trees with insecticide. This plan has the lowest annual out of <br />pocket costs, but it has the greatest cost over timeAt also produces the largest <br />remaining forest over time. Research demonstr. - '` at insecticides can protect <br />small trees < 12" in diameter until they reac Inch diameter. Effective <br />treatment of larger trees would require eit a m® requent application, or a <br />higher dose of inspective. Research a 8.2010 'sews one application of <br />insecticide will treat a tree for at lea; ®ears. <br />4. Combination of the first 3 options. <br />Treating at least the middle ray - of City tre <br />our losses over a much great eriod, an <br />treated trees. Treated trees sh• .:, b ° wed to tr <br />Poor formed trees or trees in dec <br />gives the Cif e to spread <br />sibly eliminate our losses for <br />good vigor with good form. <br />removed as soon as <br />ry it ts, genetic selection and <br />to a a success in one of these <br />costs are estimated for the different <br />ity of Lino Lakes. <br />possible. Natura <br />manipulation, <br />areas is 20 year <br />scenarios of Ash T <br />ith par <br />e esti <br />e folio <br />nt for <br />Num <br />328 <br />Based on City Park and Street Tree "'I my <br />Peltier Island Ash Trees /Nested <br />Num <br />598 157 <br />Remove All City and Park Trees over 5 years using a contractor <br />Remove All City and Park Trees over 5 years using City Crews <br />Replace All City Park and Street Trees over 5 years using a contractor <br />Replace All City Park and Street Trees over 5 years using City Crews <br />Chemically Treat all City and park Trees indefinitely using a Contractor /year <br />Chemically Treat all City and park Trees indefinitely using City Crews /year <br />Chemically Treat all City and park Trees 6 " -12" indefinitely using a contractor /year <br />$282,534 <br />$144,100 <br />$624,965 <br />$246,883 <br />$54,670 <br />$8,529 <br />$27,980 <br />1st Year At 25 Years <br />$18,223.00 <br />$2,843.00 <br />$9,326.66 <br />$2,191,210.00 <br />$341,829.00 <br />$1,123,560.00 <br />