Releaf Project

Sioux Falls ReLeaf is a collaborative effort to raise private and public dollars to replenish the urban forest threatened by the EAB.
The City has set a fund raising goal of $2.5 million over the next five years. Dollars raised will support tree planting in the City’s parks system, as well as a cost-share program designed to assist homeowners, as they replant trees in their public parking strips.

Donate Now!

EAB Management Plan

If you hired a licensed arborist and your tree(s) have been tagged, there is no need to contact us.

- A multi-year removal plan is being implemented.

-Select ash trees, located in 33 parks, will be removed beginning in September 2018.

- Pending approval of the 2019 City budget, select public right-of-way (parking strip) ash trees will be proactively scheduled for removal at NO CHARGE to the property owner. Removal will begin January 2019.

- Trees targeted for removal in 2019 will be marked with a blue “9” starting in October 2018. Residents with a marked tree will be notified prior to removal.

- Not every ash tree in the 2019 selected area will be marked and removed.

If a marked ash tree, located in your parking strip, was treated in 2018, or you intend to treat the ash trees located in your parking strip in 2019, please contact the Helpline Center by dialing 211 and ask to have your tree(s) removed from the list of trees slated for removal in 2019.

Emerald Ash Borer

Information

Emerald ash borer (EAB) is an exotic insect native to China that was first discovered in Detroit, Michigan in 2002. Since it was first discovered EAB has spread to 35 states and is responsible for the loss of more than 100 million ash trees in the United States. The threat to our ash trees is similar to what we saw happen to our elm with Dutch Elm Disease (DED) in the 1970’s.  
 
In 2018 EAB was found in northern Sioux Falls. This is the first confirmed infestation in South Dakota. The South Dakota Department of Agriculture received confirmation on May 9 that the insect is indeed EAB. The confirmation was made by the Animal Plant Health Inspection Service (APHIS), a division of the United States Department of Agriculture. The infestation was detected early and so far appears to be confined to a relatively small area. The South Dakota Department of Agriculture is conducting surveys to verify the extent of the infestation and monitor its spread. The City of Sioux Falls is taking a proactive approach to manage this impending epidemic but we need your help. We encourage residents to learn the facts about EAB so we can fight this pest together as One Sioux Falls.  

Expert Explanation of the Emerald Ash Borer

Dr. John Ball, Forest Health Specialist, SD Division of Resource Conservation and Forestry/Extension Forestry Specialist, South Dakota State University, phone 605.695.2503. email john.ball@sdstate.edu

Jump to
00:45 - Status of EAB
3:00 - How to know if your tree is infested
13:15 - What should we do now?
31:00 - Licensed Arborist list available at top of this page
36:30 - What is The City of Sioux Falls' plan?
40:37 - USDA APHIS presentation

 

 

Frequently Asked Questions

Our black, green, and white ash trees and their cultivars are all susceptible to attack. Emerald ash borer does not attack mountainash or ash-leaf maple (boxelder). These trees are not related to ash.

How to identify an ash tree

All ash trees have a compound leaf, meaning its leaves are divided into smaller leaflets. One leaf will typically consist of 5-11 leaflets attached to a single stem (petiole) that can be traced back to the twig. The edges of the leaflets may be smooth or toothed.  Ash trees exhibit an opposite leaf pattern, meaning that leaves, twigs and buds are located directly across from each other. On mature ash trees, the bark has a distinct pattern of diamond-shaped ridges. Younger trees have smoother bark. When seeds are present, they appear in paddle-shaped clusters that stay on the tree until late fall or early winter.  More information about identifying Ash Trees.

 

Green Ash

 

Seedling

Green Ash Seeds

The map below shows the area for selective ash tree removal in 2019.

Approximately 1/3 of all parking strip ash trees within the tree removal area will be removed. Trees selected for removal were based on age, size, location and condition.

Blue 9 indicating a tree a will be removed in 2019If your tree is not removed in 2019, a new area will be selected each year as part of the 10 year response plan. Upcoming areas will be released in the future.

Trees targeted for removal in 2019 will be marked with a blue “9” starting in October 2018. Residents with a marked tree will be notified prior to removal.

 

2019 Street Tree Removal Map

If your tree was treated by a licensed arborist, that record was passed on to the Parks & Recreation Department. Licensed arborists will also tag the trees which they treat with specialized tags provided by the Parks & Recreation Department.

If you've treated the tree yourself, call The 211 Helpline and report what trees have been treated on your property along with the date you treated the trees and what product was used. 

Adult Emerald Ash Borer (EAB) beetles emerge from infested wood during the summer months. Any logs, firewood or waste material moved containing the larvae can become the source for a new infestation. To help slow the spread of EAB the movement of ash wood is prohibited between Memorial Day and Labor Day. When the adult beetle is no longer actively moving, residents can safely move ash wood within the city limits and quarantine area. 

Three drop-off sites are available for people wishing to dispose of ash wood.

Mueller Pallets

27163 471st Avenue
Hours: 
Monday - Friday: 7 a.m. to 5 p.m.
Saturday 7 a.m. to 12 noon

46868 Sands Street
Hours: 
Monday - Friday: 8 a.m. - 5 p.m.
Saturday: 8 a.m. to 12 noon

There is no fee for disposal of wood products at these locations. For additional information, call 605-368-2440.

Sioux Falls Regional Sanitary Landfill

26674 464th Street

Seasonal hours can be found on the Landfill page.

Cost for disposal of wood products is $10 per ton of debris or $5 per truckload.

Note: The emergency plant pest quarantine imposed last May is still in effect and restricts movement of ash wood outside of Minnehaha County and portions of Lincoln and Turner Counties.

The emerald ash borer is a small beetle that was accidentally introduced from East Asia into the Detroit Michigan metro region sometime during the 1990s. Since that time, it has spread out into 33 states and three Canadian provinces including Minnesota, Iowa, Nebraska and now South Dakota. The emerald ash borer has killed nearly 100 million ash trees since the beetle was discovered in this country.

The adults are slender, green metallic beetles about ½ inch long. They begin emerging from infested trees and wood in early summer. The adults fly to nearby ash and deposit eggs on the bark. The larvae hatch in about a week or two, burrow into the inner bark of the tree, and begin to feed. The larvae are flat, white (worms) with bell shaped segmented bodies and will reach a length of 1 inch long by fall. The larvae create S-shaped galleries or tunnels just beneath the bark which become packed with a sawdust like material called frass. The galleries cut off the movement of food from the leaves to the roots which results in the trees decline and eventual death. The larvae form a whitish pupa just beneath the bark in the spring and the new formed adult emerges in a few weeks. 
Infested trees can survive 1-7 years but typically die after five years of continued attacks. 

The emerald ash borer is a small beetle that was accidentally introduced from East Asia into the Detroit Michigan metro region sometime during the 1990s. Since that time, it has spread out into 33 states and three Canadian provinces including Minnesota, Iowa, Nebraska and now South Dakota. The emerald ash borer has killed nearly 100 million ash trees since the beetle was discovered in this country.

The adults are slender, green metallic beetles about ½ inch long. They begin emerging from infested trees and wood in early summer. The adults fly to nearby ash and deposit eggs on the bark. The larvae hatch in about a week or two, burrow into the inner bark of the tree, and begin to feed. The larvae are flat, white (worms) with bell shaped segmented bodies and will reach a length of 1 inch long by fall. The larvae create S-shaped galleries or tunnels just beneath the bark which become packed with a sawdust like material called frass. The galleries cut off the movement of food from the leaves to the roots which results in the trees decline and eventual death. The larvae form a whitish pupa just beneath the bark in the spring and the new formed adult emerges in a few weeks. 
Infested trees can survive 1-7 years but typically die after five years of continued attacks. 

The answer is yes, unless a tree is periodically treated with an insecticide for the life of the tree. Typically, a community loses all their untreated ash trees within a ten-year period following detection. Tree owners in Sioux Falls who value their ash trees should consider treating their individual trees for this insect.

If you live in Sioux Falls there is no need to call the City, Cooperative Extension, or the SD Department of Agriculture to inspect your ash tree. If you want to protect your ash tree from the emerald ash borer, it should be treated. For professional assistance please refer to this list of Licensed Arborists that Treat Trees within the City of Sioux Falls. 

The most effective treatments for Emerald Ash Borer (EAB) are applied by commercial applicators. They have the equipment needed for proper application and can acquire chemicals with higher concentrations needed to properly treat your tree. Many factors are considered when treating a tree and all can affect how well a tree takes up chemicals used to protect against EAB. To get the most protection it is recommended that you seek assistance from professionals who have been trained to treat trees. These professionals can also offer assistance in determining if you have a tree worth investing treatments in for EAB. 

For professional assistance please refer to this list of Licensed Arborists that Treat Trees within the City of Sioux Falls.

Treatment will need to be repeated every 2 years depending on what product is being used and the application method. After the outbreak is over, approximately 10 to 12 years, the period between treatments can lengthen to 4 years or more for the life of the tree. The cost of treating a tree generally ranges from $150 to $350 per treatment for trees between 10 and 25 inches in diameter. 

 

The adult emerald ash borer beetles are attracted to fresh pruning wounds, so do not prune your ash trees between Memorial Day and Labor Day. Ash trees should not be removed during this same time as adult beetles can emerge from logs and brush as it is being transported and spread the infestation. After Labor Day until the following Memorial Day the insect is inside the tree, so ash trees can be pruned at that time. Ash wood and brush can be moved during this time as well, but it still must remain within the quarantine area. 

Help keep the City of Sioux Falls growing by supporting the ReLeaf program.

If you are within the quarantine area no ash trees nor any ash brush, logs, or raw wood products such as ash firewood can be moved outside of this area. Contact your state (605-353-6700) or federal (605-244-1713) official with questions regarding the quarantine and restrictions. Since firewood is difficult to identify to species, the restriction on firewood pertains to all hardwoods, not just ash.

Tree owners within the quarantine should consider treating their ash trees within the next few years as the insect will spread out beyond Sioux Falls. 

Quarantine map

TIf you are within the quarantine area no ash trees nor any ash brush, logs, or raw wood products such as ash firewood should be moved outside of this area. Contact your state (605-353-6700) or federal (605-244-1713) official prior to moving any of the above items outside the quarantine. Since firewood is difficult to identify to species, the restriction on firewood pertains to all hardwoods, not just ash.

Tree owners within the quarantine should consider treating their ash trees within the next few years as the insect will spread out beyond Sioux Falls. 

Quarantine map

Infested ash will have sections of their bark shredded off by woodpeckers searching for the larvae. If the bark is pulled off these trees near the woodpecker pecks, there will be S-shaped tunnels, called galleries, on the wood’s surface. These narrow galleries, about 1/8-inch wide, will be packed with sawdust like material called frass. The galleries may contain larvae which are flat, white (worms) with bell shaped segmented bodies and will reach a length of 1 inch long by fall. Another possible symptom of an infestation is 1/8-inch D-shaped holes along the trunk where the adult beetles have emerged.