Common Maple Tree Diseases in Alabama


Common diseases that affect maple trees in Alabama include Verticillium Wilt, Anthracnose, Fungal Leaf Spots, Powdery Mildew, and Root Rot.

Maple Tree Diseases

There are several species of maple trees that grow in Alabama, including Box Elder Maple, Chalk Maple, Silver Maple, Red Maple, and Japanese Maple.

Each of these species is susceptible to different diseases, but some diseases are common to all of them.

Here are some of the most common maple tree diseases in Alabama:

[To learn more about each tree mentioned above, check out, Alabama’s Maple Tree Paradise: 5 Must-See Varieties!

Verticillium Wilt

Verticillium Wilt is a fungal disease that affects the vascular system of the tree, causing wilting, yellowing, and browning of the leaves.

The fungus attacks the roots and spreads to the rest of the tree through the xylem vessels.

The disease can cause significant damage to the tree and can eventually lead to its death.

Symptoms of Verticillium Wilt include:

  • Wilting of the leaves on one or more branches
  • Yellowing and browning of the leaves
  • Stunted growth
  • Premature leaf drop

To treat Verticillium Wilt, it is recommended to prune the affected branches and dispose of them properly.

Fertilizing the tree can also help it recover from the disease.

However, if the disease has spread extensively, it may be necessary to remove the tree entirely.

Anthracnose

Anthracnose is a foliar disease that affects the leaves of the tree, causing black spots and blotches.

The disease can cause a thin canopy, reducing the energy available to the tree for proper growth.

Anthracnose is caused by a fungus that thrives in cool, wet conditions.

Symptoms of Anthracnose include:

  • Black spots on the leaves
  • Blotches on the leaves
  • Premature leaf drop

To treat Anthracnose, it is recommended to prune the affected branches and dispose of them properly.

Fungicides can also be used to control the disease, but they are most effective when applied preventatively.

Fungal Leaf Spots

Fungal Leaf Spots are caused by various fungi that attack the leaves of the tree, causing black spots and blotches.

The disease can affect the tree’s overall health and reduce its aesthetic value.

Symptoms of Fungal Leaf Spots include:

  • Black spots on the leaves
  • Blotches on the leaves
  • Premature leaf drop

To treat Fungal Leaf Spots, it is recommended to prune the affected branches and dispose of them properly.

Fungicides can also be used to control the disease, but they are most effective when applied preventatively.

Powdery Mildew

Powdery Mildew is a fungal disease that affects the leaves of the tree, causing a white powdery coating.

The disease can affect the tree’s ability to photosynthesize and reduce its overall health.

Powdery Mildew is caused by a fungus that thrives in warm, humid conditions.

Symptoms of Powdery Mildew include:

  • White powdery coating on the leaves
  • Stunted growth
  • Premature leaf drop

To treat Powdery Mildew, it is recommended to prune the affected branches and dispose of them properly.

Fungicides can also be used to control the disease, but they are most effective when applied preventatively.

Lichen

Lichen is not a disease, but it can grow on the bark of maple trees and indicate that the tree is under stress or in decline.

Lichen is a combination of algae and fungi that grow together in a symbiotic relationship.

Symptoms of Lichen include:

  • Green, gray, or white growth on the bark of the tree

To treat Lichen, it is recommended to improve the tree’s growing conditions by providing adequate water, nutrients, and sunlight.

Pruning the tree can also help improve its overall health.

Root Rot

Root Rot is a fungal disease that affects the roots of the tree, causing them to rot and eventually leading to the tree’s death.

The disease is caused by fungi that thrive in wet, poorly drained soil.

Symptoms of Root Rot include:

  • Wilting of the leaves on one or more branches
  • Yellowing and browning of the leaves
  • Stunted growth
  • Premature leaf drop

To treat Root Rot, it is recommended to improve the tree’s growing conditions

by providing adequate drainage and avoiding overwatering.

Fungicides can also be used to control the disease, but they are most effective when applied preventatively.

Before You Go

If your looking to buy shrubs or trees online, I highly recommend Nature Hills. They always have sales and discounts on nursery stock, well worth your time checking them out.

You can find them here, NatureHills.com.

Also, I have other articles about maple trees in the great state of Alabama you can check out if your interested. I’ll leave links to them below.

Check out, Cultural Significance of Maple Trees in Alabama

Check Out, Can You Tap Maple Trees in Alabama

Check out, Maple Tree Conservation Efforts in Alabama

Sources:

[1] https://www.lawnstarter.com/blog/tree-care/maple-tree-diseases-how-to-treat-them/

[2] https://portal.ct.gov/-/media/CAES/DOCUMENTS/Publications/Fact_Sheets/Plant_Pathology_and_Ecology/commondiseasesofmaplespdf.pdf

[3] https://arboretum.ua.edu/whats-growing-on/sugar-maple-acer-saccharum/

[4] https://dengarden.com/landscaping/Maple-Tree-Problems

[5] https://portal.ct.gov/CAES/Fact-Sheets/Plant-Pathology/Common-Diseases-of-Maple

[6] https://edenapp.com/blog/types-of-maple-tree-diseases-how-to-treat-them/

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