Witches’ Broom: A Common Affliction of Cherry Trees
Witches’ broom is a condition that affects many trees and shrubs, including cherry trees. It is characterized by the growth of a dense cluster of small, distorted branches that resemble a broom. This condition can be caused by a variety of factors, including fungal, bacterial, or viral infections, as well as insect, animal, or human damage.
Causes of Witches’ Broom on Cherry Trees
Fungal Witches’ Broom
One of the most common causes of witches’ broom on cherry trees is a fungal infection caused by the Taphrina fungus. This fungus attacks the tree’s leaves and causes them to become distorted and thickened. The fungus can also cause the growth of small, stunted branches that form the characteristic witches’ broom appearance.
Insect-Induced Witches’ Broom
Insects can also cause witches’ broom on cherry trees. For example, aphids and scale insects can damage the tree’s leaves and stems, causing the tree to produce new growth in an attempt to repair the damage. This new growth can sometimes form witches’ brooms.
Animal-Induced Witches’ Broom
Animals can also cause witches’ broom on cherry trees by damaging the tree’s bark or branches. For example, deer and rabbits can chew on the tree’s bark, causing wounds that can lead to the formation of witches’ brooms.
Human-Induced Witches’ Broom
Humans can also cause witches’ broom on cherry trees by damaging the tree’s roots or trunk. For example, if you accidentally nick the tree’s trunk with a lawn mower or weed whacker, it may produce witches’ broom from the wound.
Symptoms of Witches’ Broom on Cherry Trees
The most obvious symptom of witches’ broom on cherry trees is the growth of a dense cluster of small, distorted branches. These branches are typically shorter and thicker than normal branches, and they may be twisted or curled. The leaves on these branches may also be distorted and discolored.
Other symptoms of witches’ broom on cherry trees include:
- Reduced fruit production
- Dieback of branches
- Stunted growth
- Yellowing or browning of leaves
Treatment for Witches’ Broom on Cherry Trees
There is no cure for witches’ broom, but the condition can be managed by pruning away the affected branches. It is important to prune the branches back to healthy wood, and to disinfect your pruning tools before and after pruning to prevent the spread of disease.
Prevention of Witches’ Broom on Cherry Trees
There is no surefire way to prevent witches’ broom on cherry trees, but there are some things you can do to reduce the risk of infection. These include:
- Planting resistant varieties of cherry trees
- Keeping your trees healthy and well-watered
- Inspecting your trees regularly for signs of disease or damage
- Removing any dead or diseased branches from your trees
- Pruning your trees properly to promote good air circulation
Conclusion
Witches’ broom is a common condition that can affect cherry trees. While there is no cure for witches’ broom, the condition can be managed by pruning away the affected branches. By following the tips in this article, you can help to prevent witches’ broom from damaging your cherry trees.
