Dogwood Tree Disease Resistant

Lastly let s consider disease resistant dogwood trees.

Dogwood tree disease resistant. Kousa dogwood cornus kousa is generally resistant to dogwood anthracnose and is a better choice for replanting in sites where dogwoods have died from this disease. There s no need to. The initial symptoms appear as medium to large purple bordered leaf spots and scorched tan blotches. Kousa and hybrids of kousa and native dogwood c.

Sericea and cornelian cherry c. The fungus persists through years and may cause infection to spread further throughout the tree. This is due to the tree s susceptibility to anthracnose. This may further kill the entire leaf.

The shoots are also killed in this disease. First the appalachian series developed at the university of tennessee. Florida are resistant to anthracnose and decline and should be used to replace dying trees. Here are three of our favorite disease resistant dogwood trees.

Known for great resistance to anthracnose the appalachian. The infection is manifested in the form of leaf spots and stem cankers. One of the very common diseases of dogwood trees is the dogwood anthracnose which is caused by the fungus discula sp. Plant kousa dogwoods in partial shade to full sun in almost any moist well draining soil.

Mas also are resistant to this disease. Orton s new varieties which provided commercial dogwood nurseries unique varieties that were greatly improved compared to the native american dogwood. Avoid over application of fertilizer which can result in succulent new growth with greater susceptibility to disease. Leaf and flower blight irregular brown wrinkled patches form on flower bracts and leaves in the spring.

With the availability of the stellar series dogwood nurseries immediately embraced dr. The release of the stellar series provided dogwood varieties to the landscape industry that were found to be highly resistant to the dogwood borer while displaying significantly improved resistance to powdery mildew and dogwood anthracnose. Most resistant to dogwood anthracnose is cornus kousa and its slightly larger version c. When it comes to dogwoods the kousa dogwood cornus kousa is more cold and disease resistant than the flowering dogwood cornus florida according to the arbor day foundation.

It is hardy in usda zones 5 through 8. It grows about 15 to 25 feet tall with a similar spread. Tartarian dogwood cornus alba redosier dogwood c. Yet its white flowers are every bit as attractive even if they show up a couple weeks later.

While dogwoods remain a staple feature of the greater rochester area s spring landscape in many areas they are in decline. Disease resistant dogwood trees. A particular variety of cornus florida that has been bred for among other qualities its resistance to dogwood anthracnose and powdery mildew the appalachian spring dogwood blooms every spring with gorgeous white bracts surrounding yellow flowers. However there are excellent disease resistant options for this versatile small tree.

To increase your chances of enjoying a healthy dogwood choose a cultivar with disease resistance to both anthracnose and powdery mildew. The big advantage of this particular tree over other disease resistant dogwoods is that it s already a native of the united states. An upright tree to about 30 feet the korean dogwood s june flowering is.