How to Identify Common Tree Diseases in Michigan

Healthy trees and shrubs are important for keeping your yard safe and looking great. Trees provide you with shade, fruit, and fresh air, but they grow slowly. That means it’s far easier to prevent disease in a mature tree than to try to plant a brand-new one to replace it.

Examples of some common tree diseases around the Michigan area are rust disease, anthracnose disease, apple scab, leaf spot disease, and needle cast disease. Infected trees have low production and stunted growth. They may wither and eventually die.

So, with that said, how can you know that the apple tree in your front yard or the red plums in your backyard are infected with tree diseases? What do you do after you notice some unusual physical appearances on a tree’s bark, trunk, branches, fruits, or leaves?

Observe the physical symptoms clearly. Take some photos of immature rotten fruits, infected leaves, or strange looking bark from different angles for clear view and accuracy. Then, look up pictures of the fruit, leaves and bark of a healthy tree from the same species. This can help you understand whether you need to call in a tree trimmer to address the problem.

Be especially concerned if you notice these signs and symptoms:

1. Rusty leaves

Are you seeing rusty patches on your tree leaves? If yes, this could be a clear indication that your tree is infected by rust disease. Rust disease appears in various symptoms such as rusty patches on tree leaves that appear orange in color. The primary cause of rust disease is a group of fungus that invades leaves.

Once affected, your trees cannot perform photosynthesis effectively, which means they can’t feed themselves and grow. The fungus can weaken your trees if left untreated. Therefore, act quickly to curb the spread of the rust disease.

2. Dark and water-soaked spots

Are you seeing some dark and water-soaked spots on the stems and leaves of your trees and shrubs? These could be symptoms of Anthracnose leaf disease, a common tree disease which is popular among trees and shrubs from moist environments around the Michigan area.

Anthracnose leaf disease spreads quickly in Michigan. Also, the disease can threaten the life of your trees. Call us immediately to treat your trees if you identify the signs of this tree disease.

3. Pale yellow and olive-green spots

Are you seeing a pale yellow or olive-green color appearing on your apple tree’s leaves? Your apple tree may be infected with apple scab. Apple scab is a fungal tree disease, and it may manifest through some dark twisted leaves. Apple scab is a serious threat to your apple trees because if affects fruits and leaves.

Your infected apple trees will have low fruit production. The disease can kill your apple trees if left untreated. So, treat your apple tree once infected to avoid low yields.

4. Leaf spots

When you see leaf spots, it may characterize a variety of common tree diseases. However, if you see brown and yellow leaf spots on your tree’s leaves, know this is fungal leaf spots. Also, some leaf spots can be caused by a bacterial infection.

Some spots can appear visually black depending on the nature of the fungus. Treat your tree leaves infected with leaf spot disease to control the spread of the disease and premature dropping of leaves.

Final thought

To keep your trees healthy, avoid underestimating threats. Some threats are too small to see but have far-reaching side effects. Therefore, it’s important to address tree diseases symptoms on time. Watch out for the most common trees diseases symptoms to minimize chances of such diseases.

Call Aerial Tree Services today to have our tree experts come out and take a look at your trees and do some maintenance.