Black Knot, Collingwood, ON

We can help you keep black knot from taking over your trees.

Black knot is a type of common fungal disease that affects edible, ornamental, and native cherry and plum trees. If one of your trees has black knot, it may develop hard and swollen growths on its branches and, depending on the level of the infestation, on its trunk. While some trees can tolerate black knot relatively well, others are severely affected by this type of fungus. When this happens, the shoots, leaves, and branches on these trees will die after the black knot develops.

Black Knot in Collingwood, Ontario

You can typically see black knot galls the most during the fall and winter seasons after the leaves have fallen off the tree. When inspecting one of your trees for black knot, look for black, swollen, and knobby growths that are growing along the length of the branches and stems. Depending on the extent of the growths, your tree may have just a few galls or hundreds of them growing within its canopy.

We can help you treat and eliminate black knot from your trees at WillowStone. Our tree professionals in Collingwood, Ontario are familiar with common tree diseases, including black knot, and can recommend effective solutions that preserve the long-term health and vitality of your trees.

If you have concerns about a black knot infestation on one or several of your trees, let us know right away. The sooner you catch the infestation, the less likely it is that the black knot will spread and harm more of your tree. For more information, contact us today.


At WillowStone, we can help treat trees that have black knot for residents of Collingwood, The Blue Mountains, Wasaga Beach, Meaford, Mulmur, Owen Sound, Thornbury, and Bruce Peninsula, Ontario.