Dogwood Tree Diseases Anthracnose

It is caused by the discula fungus.

Dogwood tree diseases anthracnose. Anthracnose disease spreads very quickly and it is critical to identify it during its nascent stage. Unfortunately there is no cure but you can help the tree survive bouts of the disease through cultural methods. The fungi that cause it mostly from the family gnomoniaceae vary depending on the tree species. The infection is manifested in the form of leaf spots and stem cankers.

Dogwoods are extremely common in landscapes around the area which causes this disease to spread easily throughout landscape dogwoods and cause disfigurement of foliage each year. The disease spreads from infected leaves into. This disease propagates quickly in cool slightly wet conditions that are associated with the late spring and fall season. Chemical control for dogwood anthracnose dogwood anthracnose symptoms.

Dogwood anthracnose discula destructiva is a damaging disease that attacks various species of dogwoods. The early symptoms begin in mid to late may as leaf spots with tan or purple borders. Key points in the past anthracnose was the most serious disease of dogwoods in the landscape and our forests but it is now less. In wet weather these spots can.

The following article should help you determine whether your tree does in fact have anthracnose and how to control it. Kousa dogwood c. A synthetic broad spectrum fungicide chlorothalonil treats and controls a wide array of fungus strains. The anthracnose disease affects flowering varieties of dogwoods like the pacific dogwood.

Cool rainy weather creates perfect conditions for the spores to spread. Anthracnose on deciduous trees shade trees commonly affected by anthracnose are ash dogwood elm hickory maple oak sycamore and walnut. Kousa is also susceptible to infection but is highly resistant to the disease and typically suffers only minor leaf spotting. Kousa and hybrids of kousa and native dogwood c.

One of the very common diseases of dogwood trees is the dogwood anthracnose which is caused by the fungus discula sp. Irregular brown wrinkled patches form on flower bracts and leaves in the spring. Anthracnose is a fungal disease that tends to attack plants in the spring when the weather is cool and wet primarily on leaves and twigs. The shoots are also killed in this disease.

The fungi overwinter in dead twigs and fallen leaves. Dogwood anthracnose is relatively common particularly on certain species. Dogwood anthracnose is a problematic disease that all dogwood owners must take seriously. Dogwood anthracnose infects flowering cornus florida and pacific dogwoods c.

The initial symptoms appear as medium to large purple bordered leaf spots and scorched tan blotches.