New Jersey’s Most Common Tree Diseases

There are certain tree diseases that are commonly found in New Jersey. Each one is something that should be recognizable as they could be found in anyone’s background. These diseases can spread bacteria if they are not caught quickly enough.

Seridium Cranker

One common tree disease to look out for is Seridium Cranker, which can occur in Junipers and Cypress trees. After a drought or other severe weather conditions, this disease is often detected. When a tree is suffering from it, fungus infects a tree’s vascular system. This can cause the disease to easily spread to other trees nearby.

A tree lined property is at risk of all the trees becoming infected if the disease is not caught and treated quickly enough. A prompt tree disease diagnosis Wharton NJ is the best defense. The best way to treat this disease is to remove any leaves or branches that are contaminated by it. Pruning the area infected with the disease is also a necessary step. Watering and fertilizing trees on a regular basis is the best way to prevent this disease.

Needle Cast

Another tree disease that is common in New Jersey is the Needle Cast. This is a fungus that affects Blue Spruce trees when it attaches itself to their trunks. While the disease takes years to progress it is advisable to catch the presence of it as quickly as possible. This disease usually rears its ugly head during Autumn.

A tree infected with Needle Cast will cover the bottom of the tree trunk. The needles are either purplish or brown in color. As they infect the tree its trunk will gradually become thinner. Some Spruce Trees that catch Needle Cast will also lose 100% of its needles. If this disease is not caught soon enough it can damage the entire tree.

Any branches on an infected tree that are dead or in danger of dying should be removed from the tree in order to avoid this disease. Mulching and fertilizing the dirt surrounding the trees can help keep them healthy and disease free by ensuring the trees receive enough nutrients and moisture.


Anthracnose is a tree disease that often affects Dogwood, Sycamore, Maple and Oak. If a tree has this disease various fungi can be seen on the twigs and leaves. Some signs of this disease include leaves with dead spots and the falling of the leaves from the tree before the appropriate season. Leaves that follow an irregular growth pattern are also a sign of the disease. This disease can be prevented by planting new trees far enough from each othet that they get the proper airflow, as Anthracnose is caused by damp conditions.

Emerald Ash Borer

Ash trees can suffer from Emerald Ash Borer, which is when a beetle’s larvae gets into the tree and blocks its ability to get the nutrition and the water it needs. This is one disease that is nearly impossible to avoid and causes the tree’s leaves to turn yellow prematurely.