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Cornus kousa is a small deciduous tree 8–12 m (26–39 ft) tall, in the flowering plant family Cornaceae. Common names include kousa, kousa dogwood, [2] Chinese dogwood, [3] [4] Korean dogwood, [4] [5] [6] and Japanese dogwood. [2] [4] Synonyms are Benthamia kousa and Cynoxylon kousa. [7] It is a plant native to East Asia including Korea ...
Slime flux, also known as bacterial slime or bacterial wetwood, is a bacterial disease of certain trees, primarily elm, cottonwood, poplar, boxelder, ash, aspen, fruitless mulberry and oak. A wound to the bark, caused by pruning, insects, poor branch angles or natural cracks and splits, causes sap to ooze from the wound. Bacteria may infect ...
Dogwood trees – which are susceptible to a fungal infection known as dogwood anthracnose (Discula destructiva) – will sometimes send out epicormic shoots when they are dying from the disease. [8] Similarly, ash trees may develop epicormic shoots when infested by the emerald ash borer. [9] Epicormic shoots can be used in mass propagation of ...
Dogwood trees in Nagano, Japan. Cornus florida is easily propagated by seeds, which are sown in the fall into prepared rows of sawdust or sand, and emerge in the spring. Germination rates for good clean seed should be near 100% if seed dormancy is first overcome by cold stratification treatments for 90 to 120 days at 4 °C (39 °F).
When numerous, diseased shoots give the tree a blighted appearance. Infection of blossoms and shoots can spread to larger tree limbs. Branches will darken and become water soaked, eventually cracks will develop in bark. Wood under the bark will become streaked with black discoloration. Immature fruit forms water-soaked lesions and later turns ...
The amount of light a tree receives on its southwest side is correlated with the amount of sun scald the tree endures. Reducing the amount of light the tree is exposed to by planting a shrub or bush strategically to shade the southwest side can be less effective than wrapping or painting, but can have better aesthetic qualities for landscaping.