When the branches of your trees and shrubs are bare in winter, you have an opportunity to spot cankers that might be hidden by leaves in summer. A canker is an area of disease in the wood of a plant.

Cankers will often appear as a swelling surrounding a sunken lesion on the bark of trunks and branches. The canker-causing pathogens like fungi and bacteria commonly invade wounded or injured bark ...

Some leaves may prematurely drop to the ground. Numerous cankers (localized, injured areas) may occur on stems and branches and are of greater concern than the symptoms that show up on the foliage.

I make sure I care for them properly. Recently I noticed that all of them have cankers and discoloration (black and dark brown) up and down the stems. I have done research on this and ha ve been ...

This webinar on Thousand Cankers Disease is hosted by the US Forest Service. Thousand cankers disease (TCD) is a complex disease native to the western United States and primarily affects black walnut ...

The other diseases are boxwood blirhgt, oak wilt and thousand cankers disease. Thousand cankers disease causes the death of black walnut trees. It has not yet been located in Michigan, but it is ...

The other diseases are boxwood blirhgt, oak wilt and thousand cankers disease. Thousand cankers disease causes the death of black walnut trees. It has not yet been located in Michigan, but it is ...

As infections move downward from twigs and blossoms, localized cankers form on the trunk and limbs. Branch cankers become sunken and darkened and eventually cracked and creviced. Wounds to ...

New cankers form from mid-spring and, once formed, are present all year. Cankers can also develop on the trunk." READ MORE: The Midlands school named as the best in entire country in new list READ ...