See Model Request For Proposal Components for Emerald Ash Borer Management (2018), which includes components that a city can incorporate into its standard request for proposal (RFP) form to obtain private company bids for preparing an EAB management plan, and components that a city can incorporate into its standard RFP to obtain private company bids for ash tree injection services.
See the Model EAB Management Plan (MN Shade Tree Advisory Committee: 2015), which provides background and direction to cities on how to deal with EAB through adopting landscape-based management policies and practices. The Plan is based upon minimizing total life-cycle costs of the EAB infestation by 'saving the best [about 20%, with emamectin benzoate], replacing the rest,' and enlisting private owners of ash. See the Purdue University free, on-line cost calculator that enables one to enter tree inventory and cost data so as to compare costs of three different treatment and removal strategies. While the calculator does not let one compare costs to the resultant benefits, there are tree companies such as Rainbow Tree Care that can compare both the costs and the multiple health, energy, GHG, cost and environmental benefits of a variety of different strategies.
Emerald ash borer resources from the MN Extension, including details on certified Forest Pest First Detectors. A "5-10-15" tree-diversity rule-of-thumb for reducing the risk of catastrophic tree loss due to pests is to aim for city tree canopy with no more than 5% of any one species, 10% of any one genus, and 15% of any one family.
For smaller cities: at least one volunteer is a Minnesota Certified Tree Inspector or a Minnesota Forest Pest First Detector.
At least one city staff member is a Certified Forester, a landscape horticulture professional, or holds Tree Inspector and First Detector certification; city staff provide free assistance to residents/businesses, or support volunteer forestry efforts.
City has written and begun implementing a community emerald ash borer preparedness plan/climate change adaptation plan for urban forests including resilient tree species and EAB wood waste management; city tree canopy goal aims for a "5-10-15" rule-of-thumb.
Who's doing it
Bemidji - 3 star
Date action report first entered:
Date of last report update:
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The City of Bemidji has four Parks and Recreation staff members that are certified Tree Inspectors. The Parks Department is also currently working on an emerald ash bore preparedness plan, with the help of Gary Johnson from the Dept. of Forest Resources at the University of Minnesota. They conducted a volunteer-driven tree inventory this summer and are currently waiting for the analysis.
Bloomington has an urban forestry plan and program that manages DED, OW and EAB on public and private property. Inspectors are also available to help residents with various other private tree issues. Credentials include State Licensed Tree Inspector, Pest First Detector and ISA Certified Arborist.
The city of Chanhassen first hired a tree inspector/forestry intern in 1992. In 1994, the city created a full-time city forester position. The city forester is involved in projects from planning, engineering, park and rec and public works.
Outcome measures/metrics/money saved:
The city forester oversees planting and maintenance activities for all public trees creating pruning schedules, planting goals, insect and disease monitoring. The forester also implements city code pertaining to trees in regards to disease and pest inspections, development review, and planting specifications, including species selection that emphasizes tree diversity. The forester is available to assist any resident with tree-related questions or concerns.
The City Forester works to maintain city programs and also serve as a resource to residents. Coon Rapids also has four park staff member that are First Detector Certified through the Department of Forest Resources. Their knowledge is specific to invasive species that effect Minnesota’s trees specifically urban forests. Additionally six park staff members are certified tree inspectors. They provide a free service to residents who request three inspections related to possible tree disease, insect problems, proper planting and pruning techniques. These staff members help to educate the community about relevant tree concerns and recommendations for resilient species.
The City of Fergus Falls has an active Master Gardner’s group and also a Beautiful Fergus Falls Committee with a wide variety of expertise in horticulture and native plants. We also have two certified foresters on our Park, Recreation and Forestry staff.
The City of Fridley adopted an Emerald Ash Borer Mitigation Plan in February, 2018 which includes a planned combination of removal/reforestation and treatment. The City also set a goal of no more than 10% any species and no more than 20% any genus within the canopy.
Golden Valley has two full time staff with Forestry and Horticulture degrees. One staff member is additionally a Certified Arborist and has a Tree Risk Assessment Qualification from the International Society of Arborists. Per Section 10.50, subdivision 2 of the City Code a tree inspector, certified by the Minnesota Commissioner of Agriculture, administers the Shade Tree Pest Control Program for Dutch Elm disease, oak wilt, and other pests for the City. The City is responsible for removing diseased trees from public property within 20 days of disease confirmation. Property owners are responsible for removing condemned trees from private property.
A list of recommended trees is provided for residents on the Golden Valley website. Recommendations for native and/or resilient species are made to residents who request tree replacement advice. Residents are also directed towards the MnDOT Plant Selector online tool to pick plants based on site characteristics and to the Plymouth Tree and Shrub sale where native, diverse species can be purchased online and picked up every spring.
The City began developing an Emerald Ash Borer Management Plan 2010 and updated it in 2012. The intent was to provide city staff and community with a dynamic pest management guide that could easily be updated as new pest management technology evolves. The plan calls for staff to work with residents who have boulevard ash trees and remove trees in poor condition by request. Forestry generally uses 10-20-30 rule of thumb (no more than 10% of any one species, 20% of any one genus, or 30% of any family in an urban tree population) for replacing varieties of shade trees.
Outcome measures/metrics/money saved:
In 2011 city staff removed 200 low quality ash trees. In 2014, 30 ash trees were removed from parks and boulevards and 67 shade trees were planted in city parks and rights-of-way. Each year low quality ash trees are removed as needed and replacements are made based on available funding.
The City of Hutchinson employs a full-time arborist
Starting in 2014, the City of Hutchinson started implementing a forestry management plan in response to the threat of emerald ash borer. The plan, better known as the Forestry Diversification Project, consists of several small tree removal and replacement projects that will occur on an annual basis, increasing tree species diversity to reduce the risk of loss to our ash tree population. Here is a general project overview:
1.Projects will target ash trees in the publicly-owned right-of-way;
2.Priority project areas – areas in which a project will occur – have ash populations above 20% and are areas of high visibility, i.e.) parks, main thoroughfares, playgrounds, etc.;
3.All publicly-owned, ROW ash trees have been identified and inventoried. Project areas that are found to have more than 20% ash will have a certain percentage of ash trees removed and replaced with an alternative species known to do well in Hutchinson. Trees found to be in poor condition will be prioritized for removal;
4.Projects will occur on an annual basis until the desired ash population has been reached, or until emerald ash borer arrives in Hutchinson, whichever comes first.
The City of Inver Grove Heights' Parks Superintendent is a certified Arborist.
In 2010, the City adopted a 10 year Emerald Ash Borer Management Plan. This plan states how the City is going to treat Ash trees, which is by removing the Ash trees from public land and right of way areas based on tree condition. The City will replace the removed ash trees within the public land utilizing a tree replacement fund. This fund is generated by developers who pay the City for trees they are unable to replant on their property. No new ash trees are allowed to be plants in public land or right of ways.
An Urban and Community Forest Management Plan was approved by the Marine on St. Croix City Council (Oct 2018). The plan is intended to guide decisions related to preserving and enhancing the urban and rural forests of Marine on St Croix, Minnesota, for the benefit of its citizens and the environment. The plan includes recommendations for emerald ash borer management and tree planting (including recommended species for a changing climate) to maintain a healthy urban forest. The City has formed an Urban Forest Task Force, which will have three members to serve as a Forestry Advisory Committee. (Our city relies on volunteers or consultants for forestry expertise, as we have a small city staff.) An application has been submitted (Nov 2018) for Tree City USA recognition. An Arbor Day Celebration was held in May 2018, with a tree planting event at River Grove Elementary School.
Outcome measures/metrics/money saved:
A gravel bed will be constructed summer 2019 to grow trees for planting where spaces have been identified as a result of the Urban Tree survey.
In addition to the Minnetonka’s City Forester being a licensed arborist and certified tree inspector; the city employs two additional certified tree inspectors. For several years, Minnetonka has participated in the Minnesota Department of Agriculture’s voluntary early detection program of the emerald ash borer. To date the emerald ash borer has not been detected within the city, the city has a comprehensive emerald ash borer protection plan that is currently being implemented. The plan includes sections pertaining to the prioritization of ash tree removals on public property, budget impacts, replanting and wood waste considerations. The draft plan was presented to the city council in 2013.
New Brighton has a City Forester. New Brighton began removal and treatment of existing Ash trees following the discovery of Emerald Ash Borer.
Emerald Ash Borer in the City of New Brighton
In November of 2013, the Minnesota Department of Agriculture confirmed the discovery of ash trees infested with emerald ash borers (EAB) on residential property in the City of New Brighton. EAB is a serious invasive pest. Consequently, a quarantine has been placed on Ramsey County to slow the spread of EAB to other areas.
The City of New Brighton began treating boulevard and selected park ash trees for EAB in 2010 and continues to follow the recommended treatment guidelines.
For the benefit of the residents, the City has taken preventive steps to establish criteria for contractors treating EAB. The criteria will make sure residents will receive services from a competent contractor at a fair price. For example, each contractor has been in business a minimum of 5 years and has agreed to a per-tree charge of no more than $10 per diameter inch, with a $100 minimum charge.
The City’s website provides specific information on what services the contractor has agreed to and what the property owner can expect from the contractor. Visit www.newbrightonmn.gov and click on the following links: Departments/ Parks and Recreation/ Forestry/ Emerald Ash Borer Treatment Tree Contractors.
In addition, citizens can access informational article’s regarding EAB on the City’s website. Residents can also obtain a brief history of EAB, how it spreads, symptoms of EAB, what to look for in your ash trees, options for treating trees and how the City is responding to save ash trees by watching a video on the City’s website.
Residents who suspect they or a neighbor has EAB should call the Minnesota Department of Agriculture at (651) 201-6684 (press 2) and follow the voice prompts. Also, if you want to become a Forest Pest First Detector go to University of Minnesota website: http://www.myminnesotawoods.umn.edu/forest-pest-first-detector/
The City of Oakdale employs a full-time City Forester, who is a certified arborist and tree inspector. The city's Urban Forestry Management Plan addresses emerald ash borer, as well as buckthorn removal and tree planting expectations.
The City’s Forestry Division of Public Works includes certified arborists and other tree professionals who provide tree inspections and diagnostics for public and private properties. 6 staff are MN Certified Tree Inspectors.
The City has had an EAB comprehensive prep/response plan in place since 2009. Since then, forestry team members are actively treating boulevard ash trees with products to prevent the infestation of Emerald Ash Borer consistent with the City's EAB Management Plan. City staff treated the 300+ oak trees at Augsburg Park to control the native pest, the two-lined chestnut borer. Tree variety has been diversified, especially because of climate change and pest/disease reasons.
Our Tree Board in conjunction with the U of M completed a survey of all trees in Royalton and established a gravel bed nursery to provide trees for the community. Two of the board members are MN Certified Tree Inspectors and monitor emerald ash borer activity in the city.
Outcome measures/metrics/money saved:
The tree survey helped identify trees that were possibly infected with emerald ash borer. The Tree Management Plan 2019 addresses the number of ash trees in the city (on public and private property) and based on the health of the tree budget $5/tree for treatment and $2,000/tree for removal. The tree survey done in 2010 is the basis for the number of ash trees in the city. When infected ash trees are removed, we will work with the MN Department of Agriculture to determine what species should be planted.
In January 2015 the City Council approved the City's EAB Action Plan. Staff has been following the plan ever since including; targeted takedowns, injection treatments, and reforestation. The City has one Minnesota Certified Tree Inspector who oversees the EAB Action Plan.
The Public Works Maintenance Superintendent is also a Certified Forester (see attached certificate). He inspects City owned trees as well as private hazardous and diseased trees and manages the City's diseased tree management program (see link).
Three park staff members including the Director of the Parks and Recreation Department are certified tree inspectors. The city has a budget set to provide free trees in all residential area as well as replace damaged or dying trees.
Outcome measures/metrics/money saved:
The city has planted approximately 40 trees per year in residential areas alone.
The City Of Grand Rapids currently have two certified tree inspectors on is also a member of International society of Arboriculture..Kelly Morris Mn. Dept. of Natural Resources Certified Tree inspector.#20064920 Kelly Morris International Society of Arboriculture #MN-4041A
Jim Columbus Mn. Dept of Natural Resources Certified Tree Inspector #20073056
The City of Granite falls has a dedicated city staff member who is our City forester and holds a tree inspecting and first detector certification. The City further has an Dutch elm program that has funding set aside to pay to remove diseased elm trees. City forester checks trees for rot and diseases for free. The City also has the lady slippers club and volunteers that each year cleans flower beds and removes invasive weeds.
Mankato maintains two staff members which have MN Certified Tree Inspector status. One staff member (Natural Resources Specialist) is also an ISA-Certified Arborist.
The Natural Resources Specialist has designed and written an Emerald Ash Borer Preparedness Plan, which is in the review process but not yet formally adopted.
City staff monitors USDA Hardiness Zones to ensure Mankato has not been classified as a warmer climate zone. Once official records reflect Mankato as a warmer climate zone, the City will actively begin planting tree species which are only hardy to zone 5.
The City also looks for new tree species on annual basis which can be tried and evaluated in the Mankato area.
City is currently posting for a Public Works dedicated Forestry position. Previously, the forestry position was secondary to Parks Maintenance but will not be wholly dedicated to forestry efforts. We have also invested in our Lead Park Maintenance position specific to him attaining his Arborist designation. Our GIS technician has created and is maintaining and Access Database and accompanying map of all known diseased trees and working on a map of all known trees on public property. The County Adopted Ordinance 945 in 2018 - Shade Tree Disease and Pest Control as we have both Ash and Elms (Borer) along with Red Oak (Oak Wilt), and are gearing up for the predicted onslaught of virus attacking Maple Trees that is working its way westward.
Outcome measures/metrics/money saved:
Educate residents on urban forestry best practices, disease and control
Maintain up to date inventory of all diseased trees
Remove diseased trees when required
Treat and monitor all trees exhibiting characteristics consistent with best practices for treatment
The city's public works department has two staff members certified as well as a consultant forester and we work directly with a community organization thats primary goal is to protect the city's trees and to keep the city green.
Tom Schuster in our parks department holds a degree in horticulture and conducts tree inspections for residents and businesses. Additionally, the city has received grant money to increase tree diversity within the city as part of the fight against the emerald ash borer.
Saint Paul Foresty has employees who work on outreach to increase tree planting in neighborhoods, especially where canaopy has been deficient. Examples are efforts working with the community of Frog Town, "Tree Frogs" to increase tree planting on private property.
City has a "Tree Board" that manages city owned trees. One member on the Board, a local botany professor, provides technical assistance on tree management. Bill, another local expert, consults the City on invasive species such as buckthorn and other water based invasive species.
In 2016, nine Citizen Pruners donated 153 hours to prune 258 young trees planted in Newport as part of the Hwy 61 reconstruction (111 trees were pruned during the winter, as reported in April, and 147 during the summer pruning season). Citizen Pruners also thinned over-crowded dogwood shrubs in the pedestrian bridge parks.
In the fall of 2018, the City of Saint Peter Council passed an Emerald Ash Borer (EAB) Management Plan. It is a proactive approach to mitigate the spread of Emerald Ash Borer. Within the EAB management plan there are 3 important strategies to help mitigate the effects of EAB. The City has adopted a proactive method of treatment and/or removal of ash trees, removing those in decline and those requested to be removed. The intent is to slow the spread of EAB by reducing certain host trees. In combination with this; the City shall consider pesticide use for EAB on public trees to protect trees and reduce beetle populations in potential infested areas.
Finally, replanting, as ash trees are removed, is perhaps the most important part of the EAB Management Plan. Reforestation with diverse species of young trees is the primary objective in retaining the City’s urban forest. While it is impossible to avoid pests and diseases, diversity in planting with mixed planting schemes can reduce the impact. Resident education and communication are key components of managing the impact of the EAB, especially as more information becomes available. The City will continue to educate residents and elected officials concerning EAB. Public information is available to residents through the City’s website, newsletters, and available at City Hall.