Oak trees are prized among residential homeowners for their aesthetic value and durability. Technically classified as a tree or shrub in the genus Quercus, they are commonly found throughout much of the Northern Hemisphere, including North America.
In fact, there are more species of oak trees in North America than any other region. But even oaks are susceptible to disease, illness and injury.
This is why it’s important for property owners to inspect their oaks on a regular basis, checking for the following signs of a dead or dying specimen.
Have you noticed yellow leaves with greenish-colored veins on your oak tree? Assuming all or most of the leaves are experiencing this discoloration, it could be a sign of malnutrition.
Oak trees need nutrients to thrive, and when they don’t get enough of these nutrients, it may lead to yellow leaves with greenish veins.
Have your soil tested to ensure it’s adequate for your respective trees and plants.
Oak trees are bound to lose at least some of their foliage, especially when the cool fall and winter weather arrives.
But if you discover significant patches of open, missing foliage, it could be a sign of Diplodia canker, which is a fungal twig and branch disease that affects certain species of oaks.
Another sign that your oak tree is dying is the presence of decaying bark. Granted, this isn’t limited strictly to oaks; many species of trees experience this problem.
If you discover the outer bark on your oak is decaying and falling off, it’s usually indicative of a more serious underlying problem – and it may result in the tree’s death.
We can’t talk about common health problems faced by oak trees without mentioning powdery mildew. Most common along the coast, this condition is characterized by the presence of white, powder-like mildew on leaves.
Powdery mildew typically begins on new, young leaves, causing them to die and fall off. If left untreated, it will spread throughout the canopy, causing it to weaken.
Oak root rot is fairly common among oak trees. It’s actual two different diseases – fungi and water mold – with the combination of both being referred to as oak root rot.
This condition is particularly common in California, where the humidity and temperature is ideal for fungi and water mold.
Normally, excessive water leads to oak root rot, so use caution to avoid over-watering the oaks in your landscape.
If we can help with any of your tree care needs give us a call at 512-846-2535 or 512-940-0799 or