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Tree Health and Care


Planting & Care


Insect Pests

About Us

The North Dakota Forest Service is dedicated to helping you make informed decisions about the health and well-being of your trees. Whether you are planting your first tree or looking for guidance on existing trees, we can help. 

Feel free to use our Sick Tree Assistance Form if you are unable to find information you need regarding the heath of your trees or shrubs.

All you want to know about the emerald ash borer.

Japanese beetle


The Japanese beetle was detected in a number of locations in North Dakota in 2012:  Grand Forks, Bismarck, Fargo, Minot, Oakes, Taylor, West Fargo and rural Foster County.   This is a tree pest of concern due to its strong feeding preference for the foliage of American Basswood (Tilia americana) and little-leaf linden (Tilia cordata).  It is also a serious pest of many horticultural plants.  In areas where Japanese beetle is established, lindens annually suffer from intense defoliation from Japanese beetles. Lindens are a popular tree in urban plantings and are an important component of our natural forests – especially in riparian areas.  Please keep your eye out for this pest during the coming field season and report any suspicious insects to


Planting and Care


Find out which trees grow best in your area or if a tree you would like to plant will thrive in North Dakota.  We also have trees for purchase at the Towner State Nursery if you are interested in conservation planting.

  • List of North Dakota trees and shrubs - Trees and shrubs are listed by common and scientific name. Each entry includes a fact sheet describing the tree and its soil, water and sunlight requirements.
  • Tree Owner's Manual- Provides general information on planting, pruning and watering your tree.  PDF created by the US Department of Agriculture.
  • Towner State Nursery - If you are interested in conservation planting, the Towner State Nursery is the only conifer seedling nursery in North Dakota. 



Find out what diseases may be affecting your trees and shrubs as well as invasive species that could potentially ham tree resources.

 Can't find your answer here? Fill out our Sick Tree Assistance Form and we will help you diagnose your tree disorder.

  • North Dakota Invasives Get the latest information about invasive tree diseases found in North Dakota, such as Dutch Elm Disease and other pest of concern that are not currently found in the state, that you may have heard about. 
  • Insect and Disease Management Guide Another resource covering everything from Ash Rust to Wetwood.Sorted by plant/tree.
  • If you are unable to identify the disorder that is affecting your tree, please fill out our Sick Tree Assistance Form and we will help you diagnose your tree disorder.

Insect Pests


Invasive species can have a major impact on both the environment and the economy. Understanding our role in controlling pests will help minimize this impact.

  • North Dakota Invasives - Learn about invasive species, such as the Emerald Ash Borer, that are not currently found in North Dakota, but pose a risk to our tree resources if they are introduced to our area. 
  • Insect and Disease Management Guide Another resource covering everything from Aphids to Webworms. Sorted by plant/tree.
  • Don't Move Firewood - Excellent National resource for all ages spreading the message of the danger of spreading invasive species by moving firewood. 

Sick Tree Assistance Form

Thank you for using our Sick Tree Assistance Form. Please fill out as much information as possible.
*This form is intended to assist North Dakota residents with trees growing in North Dakota. Please direct inquiries from outside of North Dakota to your local county extension office or local forestry agency.
Location of Tree (if known)
Planting Type

Is there ever standing water within 50 feet of the tree?
Please attach pictures of your tree(s) from as many of the following categories as possible:

EAB Awareness Week 2014

Gov. Jack Darymple has declared May 19-25, 2014, as North Dakota Emerald Ash Borer Awareness Week, urging North Dakotans to learn what they can do to prevent the introduction of an insect that could devastate the state’s tree population.  The emerald ash borer (EAB) has spread across more than a dozen states, killing tens of millions of ash trees.

“Emerald Ash Borer Awareness Week is an opportunity to pursue public and private partnerships to encourage environmental stewardship throughout the state” the governor said.

State Forester Larry Kotchman said it is up to citizens, as well as government agencies, to prevent EAB from entering North Dakota.

“EAB spreads slowly on its own, but it can be moved long distances in firewood and ash nursery stock,” Kotchman said. “Please buy your firewood from local sources, and if you are coming from out of the state, please don’t bring firewood with you.”

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Last Updated: Tuesday, May 13, 2014 1:38:56 PM