Dogwood Tree Diseases Bark

Dogwood canker is another disease that causes cankers on the dogwood s bark.

Dogwood tree diseases bark. Kousa and hybrids of kousa and native dogwood c. Apply a fungicide during bud break to protect new flowers twigs and foliage. Dogwood tree bark is peeling due to disease dogwood anthracnose is a common disease in the cornus genus. Fungi are the main causes of dogwood tree diseases.

Fungal diseases can ruin the look of the tree and in the worse cases the tree will not survive. The disease discula destructiva causes leaf twig and branch dieback beginning in the lower part of the tree. One of the very common diseases of dogwood trees is the dogwood anthracnose which is caused by the fungus discula sp. Canker disease generally appears as sunken areas filled with dead tissue on the dogwood s bark.

Numerous small shoots may grow from the trunk. The canker shows up as rough areas. On affected trees leaves remain on the tree throughout winter. Insects invade the rough areas.

These are common symptoms of branch and crown canker as well. It is caused by the canker fungus that spreads inside the bark sucking away the bark s nutrition. It causes yellow leaves and twig dieback as well as sunken discolored areas of tissue. Dogwood cankers are commonly found on the main trunk area.

Dogwood anthracnose canker this is a serious fungal disease of dogwoods that is prevalent in states east of missouri. The infection is manifested in the form of leaf spots and stem cankers. The initial symptoms appear as medium to large purple bordered leaf spots and scorched tan blotches. Fungal growth appears on the.

Florida are resistant to anthracnose and decline and should be used to replace dying trees. The disease appears as small leaf spots surrounded by a purple border and or large tan spots on the leaf margins. Other avoidable diseases include leafspot and sun scorch which occur when this understory tree is planted in full sun. A particular kind of canker disease called the diffuse canker is typical to dogwoods.

Dogwood anthracnose discula anthracnose. Dogwood trees suffer from a variety of diseases and conditions most of which result in only cosmetic damage. Dogwood anthracnose is most severe only in areas of the state that are higher than 2000 feet. The most serious but rare trunk canker among dogwoods is caused by the phytophthora fungus.

Some are caused by improper care such as water stress resulting from inadequate irrigation during dry periods. Rake and destroy fallen leaves. Protect trees from drought stress winter injury and dogwood borer attack. The infected bark begins to discolor and sap or resin oozes out of it.