5 Common Tree Diseases and How to Prevent Them

Healthy trees enhance the beauty, value, and environmental quality of a property, but tree diseases can quickly compromise their strength and stability. When left untreated, infections can spread, leading to tree decline, safety hazards, and potential removal costs. Identifying tree diseases early and taking preventative action can protect your landscape from significant damage.



If you’re uncertain about the health of your trees, Quality First Tree Service & Landscaping offers expert assessments and treatment solutions to prevent disease from spreading and harming surrounding vegetation.

1. Root Rot

Signs of Root Rot:

• Yellowing or wilting leaves
• Mushy or soft roots
• Fungal growth at the base of the tree
• Slow or stunted growth



Root rot is a fungal disease that attacks the root system, often due to poor drainage and overwatering. Since tree roots are underground, this disease is difficult to detect until it has caused irreversible damage. Trees suffering from root rot become unstable and prone to falling, creating safety risks for homes and structures.

Prevention:

To reduce the risk of root rot, ensure your trees are planted in well-drained soil and avoid overwatering. If you suspect root rot, Quality First Tree Service & Landscaping can evaluate the extent of the damage and recommend solutions such as soil aeration, root treatments, or removal if necessary.

2. Dutch Elm Disease

Signs of Dutch Elm Disease:

• Wilted, curled, or yellowing leaves
• Brown streaks in the wood beneath the bark
• Branches dying from the top down

Dutch Elm Disease is caused by a fungus that clogs a tree’s vascular system, preventing it from transporting water and nutrients. Once infected, the disease spreads rapidly, often leading to total tree loss.



Prevention:

Preventative pruning of weak or infected branches can slow the spread. Additionally, maintaining strong, healthy trees through regular care improves resistance. If Dutch Elm Disease is suspected, it is critical to contact a professional immediately to assess whether the tree can be saved or must be removed to prevent further spread.

3. Oak Wilt

Signs of Oak Wilt:

• Wilting or browning leaves starting from the crown
• Rapid leaf loss
• Dark streaks in the wood
• Cracks or fungal growth on bark



Oak Wilt is an aggressive fungal disease that spreads through root systems and insect activity. Once infected, oak trees decline rapidly, often dying within weeks or months.

Prevention:

Avoid pruning oak trees during warm months, as open wounds attract sap-feeding beetles that carry the disease. If you notice symptoms, consult Quality First Tree Service & Landscaping immediately. Early detection is key, and professional treatment can sometimes halt the spread to other nearby oaks.

4. Anthracnose

Signs of Anthracnose:

• Irregular brown spots on leaves
• Leaves curling, distorting, or dropping prematurely
• Twigs and branches showing signs of dieback



Anthracnose is a fungal infection that primarily affects deciduous trees such as maples, sycamores, and dogwoods. It thrives in cool, damp environments and often spreads rapidly in spring.

Prevention:

Proper pruning improves air circulation and reduces excess moisture, helping to prevent fungal growth. Removing infected leaves and avoiding overhead watering can also reduce the chances of infection. For persistent anthracnose problems, a professional tree service can apply targeted fungicide treatments to protect against further outbreaks.

5. Fire Blight

Signs of Fire Blight:

• Leaves and branches turning black or brown as if burned
• Twigs wilting and bending into a “shepherd’s crook” shape
• Sticky, bacterial ooze forming on affected areas

Fire blight is a highly contagious bacterial disease that primarily affects apple, pear, and other fruit-bearing trees. It spreads quickly during warm, humid weather and can destroy an entire tree if left untreated.

Prevention:

Regular pruning of infected branches and proper sanitation of tools after cutting can slow the disease’s spread. Choosing disease-resistant tree varieties can also help. If fire blight is suspected, consulting an expert quickly is essential to prevent further damage.

Why Professional Tree Care Is Essential

Tree diseases can be difficult to diagnose without professional expertise. What may appear as minor leaf discoloration could indicate a larger underlying issue. Without proper care, these diseases can weaken trees, spread to other plants, and result in costly removals.

At Quality First Tree Service & Landscaping, we provide:

• Tree health assessments to detect early disease symptoms
• Pruning and treatment solutions to prevent further damage
• Safe tree removal if necessary to protect your property



If you’re unsure about the health of your trees, don’t wait until the damage becomes severe. Contact Quality First Tree Service & Landscaping today for a professional evaluation and ensure your trees remain strong, healthy, and beautiful for years to come.