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

Holly leaf and twig blight

Canada, United States

Leaf and twig blight on holly (Ilex spp.) is a fairly common disease in the Pacific coastal region of Canada…

There could be many reasons why your avocado tree is not producing as much fruit as you would like. Soil fertility...

When a stem splits it is best to leave the wound open to callus over. The tree should recover but advisable to reduce...

As the tree roots grow in diameter, they will become a bigger problem. Tree roots will proliferate and thrive where...

This may be a fungal infection or possibly two different fungal infections that are not affected by copper treatments....

There are many factors to consider when planning for development near trees. Assessment of tree tree health, age and...

Normally 4-6" unless otherwise agreed upon at the point of sale. You should also discuss any surface roots or other...

There are many visual symptoms that Arborists use to diagnose tree health disorders and tree structure safety issues....

The apricot may require a combination of soil treatment(s), support systems, and pest management to restore its...

It sounds like winter moth. Weeping cherry trees were hit hard this year. Winter moths feed on most deciduous trees...