In the UK, there are lots of different tree diseases affecting our ecosystems, from Dutch elm disease to honey fungus. As the name suggests, Ash Dieback (formerly known as ‘Chalara’), is a serious disease affecting ash trees. As it continues to spread, we’ve had lots of questions about what it is, how to identify it and what steps can be taken if trees are affected.
Are you looking for the best Ash Dieback FAQs? Read on.
What is Ash Dieback tree disease?
Ash Dieback is scientifically known as Hymenoscyphus fraxineus. This fungal disease affects ash trees and can be highly destructive once it takes effect. The fungus attacks a tree’s vascular system, causing loss of leaves, crown dieback and complete tree deaths. Unfortunately, there is no treatment for it at this time.
It wasn’t officially recognised until 2006 and has since spread across Europe, with the first UK Ash Dieback seen in 2012. As a nation, we must do more to tackle this tree disease, as it threatens the ash tree population.
What does Ash Dieback look like?
Recognising diseased trees is the key to helping them. Ash Dieback has several key symptoms. Leaves will often form black or brownish blotches, particularly around the midrib and leaf base before wilting. Stems and branches are also affected, forming diamond shaped lesions.
There can also be extensive dieback of twigs and shoots with a noticeable thinning of the tree crown. Infected trees may also have dark streaks, with the underlying wood beneath the bark having grey or brownish discolouration.
How long do trees with Ash Dieback live for?
Most trees begin showing significant symptoms within 5 years of infection. The lifespan of trees with Ash Dieback varies significantly, depending on the plant’s age, health and environment.
Unfortunately, young trees often succumb to the disease within a few years. Strong and mature trees may live for many years longer, but they can still experience severe dieback and structural weakness.
Should you remove a tree with Ash Dieback?
Deciding whether to remove a tree with Ash Dieback often depends on its safety. If the ash tree shows high risk to people or property because of weakened branches or structural instability, it should be removed.
Another reason to remove a tree with Ash Dieback is severe infection and extensive crown damage. These trees are unlikely to recover. Consulting a professional tree surgeon is key. They can assess the tree’s condition and recommend the next steps in line with best practice.
What’s the latest Ash Dieback advice?
The latest advice for managing Ash Dieback combines good monitoring, reporting and management of the disease, while making tough decisions on removal.
At ground level, we can regularly inspect ash trees for signs of the disease, especially during growing seasons when symptoms are more visible. Tree surgeons should ensure they stay informed about the latest Ash Dieback research while following guidelines from forestry and environmental agencies.
Contact DH Tree Services for more advice
Concerned about tree disease? Contact DH Tree Services for a tree assessment in Leigh, Ripley and surrounding areas. For expert advice, call 07872 615 504.
