Photo of the Week
What type of canker do you think is on this ash tree?
This homeowner is very worried about his tree. He asks "Will my maple tree die?" This is maple anthracnose and while leaves can be severely affected when we have a wet spring - the tree will not die.
Oak anthracnose is a leaf disease but can mimic the symptoms of oak wilt.
To protect thin barked trees planted in China from winter sunscald trees are carefully wrapped with thick twine.
Some symptoms of air pollution can be very distinctive such as this damage on birch due to SO2
Keeping forest and urban landscape trees healthy requires a good knowledge of tree diseases. This class will provide you with important information you can use in the future.