Early detection of disease can save your tree — or prevent serious damage to your home, garden, or nearby property. Many trees in Dorset and Hampshire suffer from preventable decline simply because warning signs go unnoticed. At Clearcut Tree Surgery, we regularly inspect trees across Bournemouth, Poole, Ringwood, and the New Forest, helping clients identify problems before they become costly or dangerous. Below are the five most common signs that your tree may be diseased or dying — and what to do about it.

1. Fungal Growth on the Trunk or Roots

Fungi like bracket fungus, honey fungus, or Ganoderma often indicate internal decay, especially when growing on the base or sides of the tree. These growths weaken structural integrity and can lead to sudden collapse — particularly after storms or high winds. If you see mushrooms or crusty growths near the roots, it’s time for an inspection.

2. Cracked, Peeling, or Bleeding Bark

Bark protects the tree’s internal systems. Cracks, splits, or oozing sap (known as “bleeding”) can signal infection or internal stress. In some cases, this may be caused by bacterial wetwood, canker, or frost damage. Trees with damaged bark are more vulnerable to pests and rot, so early action is vital.

3. Sudden Leaf Drop or Out-of-Season Discolouration

If your tree drops its leaves suddenly during the growing season, or shows autumn colours too early, it may be stressed or infected. This is often a response to root disease, nutrient deficiencies, or soil problems. Repeated early leaf loss is a red flag for long-term decline.

4. Dieback in the Crown

Look up — if the upper branches are bare, brittle, or losing twigs and leaves, your tree could be suffering from crown dieback. This typically signals that the tree is no longer able to support itself due to disease, pest damage, or internal decay. If not dealt with, this can lead to falling limbs or total failure.

5. Visible Cavities, Rot, or Insect Damage

Holes in the trunk, soft or spongy wood, and sawdust-like debris at the base are signs of internal rot or insect infestation. Wood-boring insects, such as beetles, often attack weakened trees. Left untreated, this can spread quickly through the trunk and compromise structural safety.

🛠️ Need a Tree Health Check in Dorset or Hampshire?

If you spot any of these signs, don’t ignore them — diseased trees can become unstable, especially during storms or high winds. At Clearcut Tree Surgery, we offer professional tree inspections across Dorset and Hampshire. We’ll assess your tree’s condition and provide honest, expert advice on whether it can be treated, pruned, or needs to be safely removed.
📞 Contact us today for a free consultation and peace of mind.