Anthracnose Dogwood Tree Leaves Curling. Generally white dogwood cultivars are more susceptible to spot anthracnose than pink cultivars. What is cornus anthracnose.
Other dogwood diseases such as those caused by septoria cornicola species pathogens may also show leaf spotting symptoms similar to anthracnose but they do not cause cupped or curled leaves. But you can rest assured your tree won t look disfigured forever if you keep up with fungicide applications to keep your tree from being reinfected the next spring the new growth will be. However the damage that is already done to the tree s leaves and stems can not be reversed which is why prevention is so important when it comes to fungal diseases especially dogwood anthracnose.
Dogwood anthracnose is the most common disease that affects dogwood trees.
Curled wilted or distorted leaves along with dark or tarlike spots are common symptoms of dogwood anthracnose. It infects and kills the leaves and young shoots of some north american cornus species dogwoods cornus florida is particularly susceptible cornus nuttallii and cornus kousa may also be attacked. Department of agriculture plant hardiness zones 2 through 9 depending on species. Caused by the fungus discula destructiva anthracnose thrives in moist shade.
