4 Common Tree Diseases 

One of the problems a garden lover has to endure is the existence of plant diseases especially on trees. These diseases can affect the parts of a tree and even the entire tree, causing to be entirely damaged. It’s difficult to identify these diseases because they spread by microscopic growth, which means they are not visible with the naked eye. 

Before you take action, it’s best to identify what causes the problem. With this kind of dilemma, you need to hire a tree service company in Marietta to make the diagnosis for you. A correct diagnosis will then pave way to how a treatment should be applied. It will be critical that’s why a professional should inspect the tree.  

The following are some of the most common diseases that might affect your trees. 


This is a symptom rather than a fungus. The most common symptoms are blotches on the leaves and irregular dead areas. Most fungi produce the mentioned symptoms on specific host plants. Sometimes the leaves are engulfed and the cankers cause the small branches to die. The symptoms can be found on the leaves only, but it’s considered to be lethal if the fungi invade the branches and twigs.   

Phytophthora Root & Crown Rot 

Symptoms of Phytophthora are combination of discolored foliage, crown dieback and unhealthy appearance. Trees which are very old suffer these diseases for years before their death. If the disease attacks the basal stem or crown, the tree is likely to die within a season. Young trees are also vulnerable to this disease since they have underdeveloped crowns and root symptoms. That’s why before you plant the trees; make sure it has good soil drainage since the disease thrives in moist and warm soil.  

Oak Wilt 

This disease can be mostly found on oak trees. It is spread through root graft infections or carried by insects. The carrier of this disease is a sap feeding beetle which transfers the disease from infected trees to healthy trees. The symptoms vary in white oaks, red oaks and live oaks. But it has one symptom common to all: dropping of leaves, why? Most oak disorders do not involve leaf drop, so if the oak trees experience leaf drop, it has an oak wilt.  

On white oak, the symptoms include discoloration of leaves from the tip down, appears dry and olive drab in color. The symptoms progresses from the branches’ tip and inwards. There’s also a slow death of branches and the tree might die after months of years.  

On red oaks, the symptoms include partially green and brown leaves and discoloration starting at the margins then towards the stem. The tree dies quickly resulting to dark streaks that appear under the bark. It also has spore mats under the bark, which is distinctive only on red oak family. Other red oaks surrounding the affected tree might also wilt and die.  

On like oak, the symptoms include interveinal chlorosis and the tree dies within 6 months.  

Fire Blight 

It is a bacterial infection that causes the twig to dieback. The symptoms include a burned appearance of the twig and leaves. It could also be a sign of a destructive disease.   

Leave a Reply

Your email address will not be published. Required fields are marked *