Problems of Sycamore: How to Identify Sycamore Anthracnose.

Identifying and treating sycamore problems can help you get rid of them quickly. Many diseases can affect sycamore, making it unattractive and unhealthy. They cause noticeable changes to your sycamore tree’s appearance. Learn how to identify and treat sycamore problems and more as you read.


How to identify and treat sycamore problem

Identify the cause of the problem. The first step in treating a sycamore problem is to identify the cause, including whether it’s due to poor soil, lack of water, or other factors. Sycamore trees get damaged by drought, plant disease, insect infestation, and other problems.

Once you’ve identified what’s causing your tree’s problems, you can begin treatment. Start with proper pruning techniques, soil additives, and other methods to improve your tree’s health.

How to know if a sycamore tree is dying

The first sign that a sycamore tree is dying is when the leaves start to turn brown and fall off. It can happen within a year or two, but it can also take several years for this process to occur.

Other signs that indicate that the sycamore tree is dying include:

  • The trunk begins to sag, or the bark starts peeling away at the trunk’s base.
  • Its branches start to die and fall off.
  • The branches begin to wilt or droop down toward the ground, which may cause damage to landscaping plants nearby if they are close.

How to identify sycamore Anthracnose

Symptoms of sycamore anthracnose include:

  • Spots on the leaves.
  • Yellowing or browning of leaves.
  • Blackened leaves.

Spots on the leaves.

These spots can range from tiny to large and may be either yellow or brown. They are often on the underside of the leaf. But can also appear on the upper side of the leaf.

Yellowing or browning of leaves.

As with the spots, you’ll notice that some leaves turn yellow while others turn brown. It is especially noticeable during hot weather when leaves have direct sunlight for long periods.

Blackened leaves.

It indicates that there is still sap in the plant. However, fungi have caused it to change into a material that resembles tar (called mycotic disease). If this happens, it can kill plants quickly if not corrected fast by removing the infected foliage.

Learn how to identify Bleach Leaf Scorch (BLS) on the sycamore trees.

What does Sycamore Anthracnose look like?

Sycamore anthracnose is a fungal disease that can cause damage to the trunk and branches of trees. It is most common in areas with long drought. But it can also occur in wetter locations.

Anthracnose Symptoms:

The reddish-brown patch on the bark is typically the first sign of sycamore anthracnose. As the disease progresses, the affected area turns black and soft, which makes it very easy to cut through with a saw. Eventually, you may see small mushrooms growing on the bark surface. The mushrooms turn brown as they dry out and fall off the tree.

Cause of Anthracnose:

The genus Colletotrichum contains the fungus that causes sycamore anthracnose. It is a fungus commonly found in soil or dead organic matter such as mulch or compost piles. But it also survives on living plant tissues such as needles or leaves if conditions are right for its survival.

What are the problems a sycamore tree faces?

Part of the problems sycamore faces is that it is susceptible to disease, especially fungal infections. Fungal infections come from several different species of fungi. The most common one that affects sycamore trees is Ceratocystis fruiting bodies. This fungus causes black spots on the leaves and stems and can spread to the entire tree.

Another common disease affecting sycamore trees is leaf spot. It causes yellow spots on the leaves and appears as a small circular area with brown edges, sometimes surrounded by a ring of dead tissue at the spot’s center. In addition to these diseases, many other diseases like bark beetle damage and root rot affect sycamore trees.

Sycamore trees are also susceptible to insect pests such as Japanese beetles and aphids. They feed on the leaves and fruit clusters, causing damage to these parts of the tree. But, some insects like borers affect roots or stems and cause structural damage.

What are sycamore diseases?

Sycamore diseases involve fungal diseases affecting sycamore trees. The most common cause of sycamore disease is the black rot fungus, Phomopsi, which affects the bark and heartwood of the tree. Other fungal pathogens that cause sycamore diseases include Pythium insidiosum, Alternaria tenella, and Mycosphaerella syringae.

Symptoms of Sycamore Disease

Symptoms of sycamore disease include dark brown or black streaks on the trunk and branches and lesions on the twigs and leaves. These lesions may be round or have an irregular shape and develop into dented cavities when mature. The same symptoms are on other species of deciduous trees infected by this fungus. Mature lesions are also commonly found on fruit trees such as apple and pear trees.

What are the names of pests that attack sycamore trees?

Several pests attack sycamore trees, including:

  • Aphids
  • Borers
  • Scale insects
  • Root weevils
  • Sycamore moth (Plutella xylostella)
  • Bark beetle
  • Diamondback moth (Plutella xylostella)
  • European emerald ash borer (Agrilus planipennis)


They are soft-bodied insects that suck the sap from plants. They are on most places of the sycamore tree, including the leaves and fruit. Aphids often swarm in large numbers on young sycamore trees, but they do not cause any damage to mature sycamore trees.

Bark beetles

It is a beetle that attacks the leaves and branches of the tree, causing them to die. If a tree gets infested with bark beetles, it may need to be removed and replaced with another type of tree.

Scale insects

These are tiny insects that grow on the undersides of leaves and twigs. They resemble little tufts of fuzz and do not hurt the plant itself, but if they spread out onto neighboring plants in warm weather when they emerge as adults, they can injure those plants.

Root weevils

They feed on the roots of plants by gnawing away at them from below ground level until they reach an area where their roots no longer extend.

Are sycamore trees a problem?

Sycamore trees are a common problem in many cities and towns. They tend to block the light from the sun and can cause problems for homeowners by blocking the view from their homes.1

In addition, sycamore’s roots can damage foundations, sidewalks, driveways, and other structures.

How do you prevent a sycamore tree from diseases?

There are many ways to prevent a sycamore tree from diseases:

  • Take care of the soil where the tree gets planted. The soil should contain good organic matter and be rich in nutrients, especially nitrogen and phosphorus. It will help the tree grow healthy roots that survive in poor soil conditions.
  • Plant the tree in a location with full sunlight, which is vital for photosynthesis (the process by which plants convert sunlight into food).
  • Water your sycamore tree regularly. It will help it stay hydrated. But don’t let the water sit on its leaves because this can cause fungal infections.

How to prevent sycamore from pests

Here are some tips on how to prevent sycamore from pests:

  • Remove all dead branches from your sycamore tree. It will keep them from being a food source for many insects and give you more time to treat their damage before it spreads further.
  • Ensure that your soil is well-drained and not too moist (a few inches below the surface is ideal). In addition to preventing pests from entering your plant beds in search of water, it will prevent roots from rotting in moist soil.
  • Use insecticidal soap on any plant you suspect pests are affecting. Insecticidal soaps kill insects on contact while they’re still alive. The insects will die off quickly without spreading disease back through our ecosystem.

Citations Used in this Article

  1. Facts About The Sycamore Tree – Tips For Growing Sycamore Trees (