Tree diseases

  • All resources in tree diseases 256
  • Environmental factors and damage 117
  • Fertilization and soil management 3
  • General information 9
  • Insects and pests 122
  • Plant health care 171
  • Tree management and consulting 18

While it would be best to paint any of the tissue exposed by the injury, it sounds like this tree may have a severe...

In general, wound "dressings" such as tree paint, wraps, etc. are no longer recommended. There may be other...

It would not be recommended to put any type of dressing on the rips. Some of those wound dressings can encourage...

Sooty bark disease

Canada, Great Britain, United States

Sooty bark disease (SBD) causes wilting, dieback, and death of various maple species in North America. This disease i…

Summary of needlecast and needle blight diseases

Canada, Great Britain, Ireland, United States

This report provides details about various needlecast and needle blight diseases, including hosts, infection periods,…

The yellowing on the interior is normal. However, on the ends of the branches is not normal. It is likely a disease...

Thousand cankers disease

Canada, Great Britain, Ireland, United States

Thousand Cankers Disease (TCD) is a fatal disease affecting several types of walnut trees (Juglans spp.) wit…

Tubakia leaf spot

Canada, Great Britain, Ireland, United States

Tubakia leaf spot, also known as Actinopelte leaf spot, is a late season fungal disease that commonly attacks oaks, p…

Learn about Verticillium wilt