Norfolk is home to thousands of beautiful, mature Ash trees, but over the last decade, a silent threat has been completely devastating the local landscape. Ash Dieback (Hymenoscyphus fraxineus) is a highly destructive fungal disease that is rapidly spreading across the UK.
If you have an Ash tree in your Norwich garden, it is absolutely vital to know what this disease looks like and what to do if your tree becomes infected.
What is Ash Dieback? Ash Dieback is a fungus that originated in Asia and was accidentally introduced to Europe. The fungal spores travel for miles on the wind, landing on the leaves of healthy Ash trees during the summer. The fungus then penetrates the leaf and grows aggressively down into the twigs, branches, and eventually the main trunk, choking off the tree’s water supply.
How to Spot the Warning Signs The earliest signs of Ash Dieback usually appear in the summer months. Look out for the following symptoms in your garden:
- Blackened, Wilting Leaves: The leaves will turn black and shrivel up, often hanging on the branches rather than falling to the ground.
- Diamond-Shaped Lesions: Dark, diamond-shaped patches of dying bark will appear where branches join the main trunk.
- A Thinning Canopy: The very top of the tree (the crown) will look bare and dead, with no leaves growing on the tips of the branches.
- Epicormic Growth: As the tree panics and tries to survive, it will violently shoot out clumpy, bushy new growth lower down the main trunk.
Why is an Infected Tree Dangerous? As Ash Dieback kills the tree from the inside out, the wood becomes incredibly brittle and fragile. An infected Ash tree is highly unpredictable and can suddenly drop massive, heavy branches without any warning, even on a completely calm, windless day. This makes them a severe hazard to homes, cars, and pedestrians.
What Should You Do? There is currently no cure for Ash Dieback. If you suspect your tree is infected, do not try to prune the dead wood yourself. Because the timber becomes so brittle, climbing an infected Ash tree is considered one of the most dangerous jobs in the industry.
You must call a fully qualified, local Norwich tree surgeon immediately. A professional team has the specialist machinery, such as MEWPs (Mobile Elevating Work Platforms), to safely dismantle the diseased tree piece by piece without having to physically climb it.
Catching the disease early makes the removal process much safer and significantly cheaper, so if you are worried about an Ash tree on your property, book a professional site assessment today.