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

Learn about Boxwood blight

Boxwood Blight

Canada, United States

Boxwood blight is a fungal disease that causes leaf spots, twig cankers, rapid defoliation, and eventual death of box…

Research that evaluated resistance of boxwood species and varieties to boxwood blight indicates that resistance is la…

Brittle cinder fungus

Canada, United States

Wood decay pathogens are often classified by the components of the woody tissues th…

Brown rot

Canada, United States

Brown rot is a destructive disease on many species in the genus Prunus. Fruiting and ornamental cherries, pe…

Brown spot needle blight

Canada, Great Britain, Ireland, United States

Brown spot needle blight causes needle browning and defoliation of many pine species in North America. The disease is…

Bur oak blight

Canada, Great Britain, Ireland, United States

Bur oak blight is a disease that causes leaf blight, branch dieback, and in extreme cases, death of bur oak in the Mi…

Camellia petal blight

Canada, United States

Camellia flower blight is a fungal disease that blemishes camellia blossoms. It is caused by Ciborinia camelliae

The blight may be Needlecast which is very common on this type of tree. Typically treatment during the winter is not...

A holly on your foundation can create great year round color and privacy. It's also capable of growing towards your...