The birch is a resilient tree. It can cope with many imponderables, defeats many diseases and survives many pests. But even with this the limit of what is bearable can be exceeded. Her owner must recognize this, intervene and save her.
When do I have to save the birch?
Most diseases and pests do not cause much damage. Take action if the birch tree shows wilted leaves and flowers, it could have the dangerous diseaseAnthracnose. Black discharge on the trunk is also an alarming signal of declining vitality.
What is anthracnose and what can I do about it?
Anthracnose is a disease caused byfungal pathogens. Birch trees that grow in warm, humid regions are particularly affected. There are currently no effective means of combating it. You only have a chance of saving your birch tree if you grab the scissors early. Cut back allinfected shoots generously.
How do I combat black discharge?
Black discharge is a relatively new phenomenon on birch trees for which there is neither an adequate explanation nor an antidote. As it progresses, the discharge dries up and forms a blackish crust. The tree's vitality continues to decline and parts of the crown die off. It is believed thatimproved living conditions can extend their lives. Avoid drought stress by watering them regularly during low-rain summers. If necessary, thin out around the birch tree so that it gets more light.
When do I have to/can I fell a birch tree?
In Germany, trees, including birches, are under legal protection. You may only cut down larger specimens after you have previously obtained the requiredpermit. Please contact the responsible office in your region to find out which regulations specifically apply. You will most likely be allowed to cut down a severely diseased birch tree.
- weakened birch can die
- there is a risk of collapse
- there is a risk of personal injury
Tip
Get help from the responsible horticulture department
It can be difficult for a layperson to diagnose any birch disease without any doubt. Experts can also better assess whether a birch tree is still safe from falling over or not. If you are unsure, please do not hesitate to ask the responsible horticultural authority for support.
