Dogwood Tree Disease Resistant
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.
Dogwood tree disease resistant. Mas also are resistant to this disease. Sericea and cornelian cherry c. Appalachian spring is extremely resistant to anthracnose. Plant kousa dogwoods in partial shade to full sun in almost any moist well draining soil.
While dogwoods remain a staple feature of the greater rochester area s spring landscape in many areas they are in decline. Avoid over application of fertilizer which can result in succulent new growth with greater susceptibility to disease. To increase your chances of enjoying a healthy dogwood choose a cultivar with disease resistance to both anthracnose and powdery mildew. Disease resistant dogwood trees.
The infection is manifested in the form of leaf spots and stem cankers. Developed by rutgers the stellar series including stellar pink constellation celestial and aurora show some resistance against anthracnose and powdery mildew and a high degree of resistance against dogwood borer. First the appalachian series developed at the university of tennessee. This may further kill the entire leaf.
Lastly let s consider disease resistant dogwood trees. However there are excellent disease resistant options for this versatile small tree. Plant disease resistant cultivars of flowering dogwoods. Tartarian dogwood cornus alba redosier dogwood c.
The initial symptoms appear as medium to large purple bordered leaf spots and scorched tan blotches. 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. There s no need to. Most resistant to dogwood anthracnose is cornus kousa and its slightly larger version c.
An upright tree to about 30 feet the korean dogwood s june flowering is. The fungus persists through years and may cause infection to spread further throughout the tree. 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. The shoots are also killed in this disease.
One of the very common diseases of dogwood trees is the dogwood anthracnose which is caused by the fungus discula sp. Here are three of our favorite disease resistant dogwood trees. Known for great resistance to anthracnose the appalachian. Yet its white flowers are every bit as attractive even if they show up a couple weeks later.
With the availability of the stellar series dogwood nurseries immediately embraced dr. Kousa and hybrids of kousa and native dogwood c. Orton s new varieties which provided commercial dogwood nurseries unique varieties that were greatly improved compared to the native american dogwood. 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.
Florida are resistant to anthracnose and decline and should be used to replace dying trees. Leaf and flower blight irregular brown wrinkled patches form on flower bracts and leaves in the spring. It is hardy in usda zones 5 through 8.