Sooty-Bark Disease of Maple

Sooty-bark disease of Acer pseudoplatanus in Türkenschanz Park, Vienna. Although this tree previously had a dead top, it was killed quickly by the disease. Photo courtesy of Thomas Kirisits, IFFF-BOKU, Vienna. Sooty-bark disease of Acer pseudoplatanus in Türkenschanz Park, Vienna. Note the conidial masses up and down the stem and branches where bark has been … Read more

Cankers

What is a canker? What causes cankers? How do canker pathogens get in? What determines canker growth? Types of canker diseases Annual cankers Persistent perennial cankers Diffuse cankers What is a canker? A canker is an infectious disease of the phloem and cambium on stems, branches or twigs of trees.  A patch of phloem and … Read more