Dutch elm disease (DED) has been spreading across North America since the 1920s. It first was reported in North Dakota in Mandan in 1969, and it reached eastern North Dakota by 1973. DED has been confirmed in every North Dakota county.

Iron chlorosis is a major tree-health issue found throughout the state. This document summarizes the biology and ecology of the issue, including susceptible species and soils most likely to create this problem. Soil treatments and stem injections are discussed.

Pines for North Dakota gives an overview of the most common pine trees in the state, explaining characteristics that will help identify one pine from another.

This publication describes proper methods of tree planting and advantages/disadvantages of different types of nursery stock. Common mistakes and misperceptions are discussed, as well as post-planting care.

This is a valuable resource for organizations interested in starting a community orchard. It provides information on how to plan the orchard, select fruits and organize volunteers. It also provides sources of plants, sample budgets, funding opportunities, sample contracts and bylaws, and sources of technical advise.

This publication summarizes the threat of invasive metallic wood-boring beetle, emerald ash borer, to North Dakota's ash trees. It's identification, biology, damage, and pest management strategies including cultural, plant resistance, biological control and chemical control are discussed. If you suspect that your ash tree is infested with emerald ash borer, it also tells you what to do.

This publication will help identify and manage apple scab in home landscapes.

Ash trees (in the genus Fraxinus) are susceptible to attack by the emerald ash borer (EAB), a non-native insect. The first step in determining if a tree has been infested with EAB is to make certain that it is an ash tree.

Spruce is commonly planted in urban and rural landscapes in North Dakota and frequently suffers from needle loss. Premature needle loss of spruce is the result of a variety of causes: improper planting, environmental stress, insect pests and disease.

This document lists fully recommended, partially recommended and not recommended elm (Ulmus) species and cultivars. Recommendations are based on testing, experience and expert opinion. American elm, Japanese elm, Siberian elm, and hybrid elms are all discussed.