7 Warning Signs of a Diseased Tree & What You Should Do

Your trees are more than just part of the scenery. They boost curb appeal, provide shade, and even increase property value. But just like any other living thing, trees can get sick. And when they do, early detection is crucial. The good news? You don’t need to be an arborist to spot the warning signs.

At Georgia Pro Tree Service, we believe that informed homeowners make the best decisions for their landscapes. So we’ve put together this guide to help you identify the most common signs of tree disease, and what to do when you spot them.

1. Wilting or Discolored Leaves (At the Wrong Time)

Leaves turning yellow or brown in the fall are expected. But if it’s happening in spring or summer, something could be wrong. Wilting, spotting, or curling leaves are often among the first signs of a tree in distress.

What It Means:
This could indicate fungal infections like anthracnose or verticillium wilt, especially in hardwoods like maple or oak.

What to Do:
Document the changes and call a certified arborist. Prompt diagnosis can lead to treatments that may save the tree.

2. Dead or Dying Branches

Branches that no longer produce leaves or buds are a red flag. They often appear dry, brittle, and may fall easily.

What It Means:
Dead branches often signal disease, insect infestation, or root problems. Left unchecked, these branches can fall and cause damage or injury.

What to Do:
Prune dead limbs to prevent spread and evaluate overall tree health. Georgia Pro Tree Service offers expert pruning to remove problem areas safely.

3. Fungal Growth or Mushrooms at the Base

Fungi might look harmless (or even pretty), but when they’re growing on your tree, they often indicate decay.

What It Means:
Mushrooms and conks at the tree’s base may suggest internal rot, particularly in the trunk or root zone.

What to Do:
Avoid cutting into the tree yourself. Fungal indicators usually mean the tree’s structural integrity is compromised. A professional inspection is a must.

4. Cracks, Cankers, or Bark Abnormalities

Healthy bark protects a tree from pests and disease. If you see sunken areas (cankers), deep cracks, or peeling bark, it’s time to pay attention.

What It Means:
These signs often result from bacterial or fungal infections and can lead to further exposure and stress for the tree.

What to Do:
Don’t try to patch bark with paint or sealants, it can do more harm than good. Instead, consult an arborist to assess whether intervention or removal is necessary.

5. Oozing Sap or Wet Spots

Sticky sap or dark, wet-looking spots on the bark can mean the tree is "bleeding" due to disease or injury.

What It Means:
Sap oozing from holes or gashes might suggest bacterial wetwood, a disease common in elm, poplar, and maple trees.

What to Do:
Monitor the amount and frequency. In many cases, early intervention can control the problem. Georgia Pro Tree Service can provide a treatment plan tailored to your tree species.

6. Leaf Spotting or Early Leaf Drop

If your tree is dropping leaves in midsummer or showing abnormal spotting, it's not just stressed, it could be sick.

What It Means:
This is typically a sign of fungal or bacterial leaf diseases. Trees like dogwoods, sycamores, and cherries are especially vulnerable.

What to Do:
Rake and dispose of fallen leaves to reduce the spread of disease. Mulching, watering, and professional fertilization can also help boost immunity.

7. Insect Activity or Woodpecker Damage

Notice tiny holes in the bark? Sawdust around the base? An uptick in woodpecker visits? Your tree might have unwelcome guests.

What It Means:
Borers, beetles, and other pests can infest weakened trees. Woodpeckers often follow, feasting on the bugs.

What to Do:
Insect infestations can spread quickly, especially in dense landscapes. Pest-specific treatments and systemic injections from Georgia Pro Tree Service can help.

When Should You Remove a Tree?

Not every sick tree can or should be saved. If the tree poses a safety hazard, like leaning too close to a structure or showing signs of structural instability, it may be time for removal.

Red Flags for Removal:

• Tree is more than 50% damaged
• Fungus is growing inside the trunk
• Large limbs are falling frequently
• The trunk is hollow or cracked

Our team at Georgia Pro Tree Service uses industry-best practices and equipment to remove trees safely and efficiently, always with a focus on protecting your property.

Why Call in the Pros?

Tree health isn’t always black and white. What looks like a disease could be drought stress, or vice versa. Misdiagnosing can lead to wasted time and money.

Here’s what Georgia Pro Tree Service brings to the table:

• ISA Certified Arborists
• Disease-specific treatments
• Safe and insured tree removal
• 24/7 emergency storm service
• Knowledge of Georgia’s native trees and regional pests

We don’t just cut, we care. Our goal is always to preserve whenever possible, and remove only when necessary.

Conclusion: Healthy Trees, Healthy Property

Spotting the signs of a diseased tree early can make all the difference. Whether it’s a small fungal infection or a full-blown infestation, action beats reaction every time.

So the next time you’re out in your yard, take a minute to really look at your trees. And if you notice something off, don’t wait. Give Georgia Pro Tree Service a call, we’re here to help your landscape thrive, one tree at a time.

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