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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 ...
Curtisia dentata (commonly known as the Assegai tree or Cape lancewood, Afrikaans: Assegaai, Xhosa: Umgxina, Zulu: Umagunda) [5] is a flowering tree from Southern Africa. It is the sole species in genus Curtisia , which was originally classed as a type of "dogwood" ( Cornaceae ) , but is now placed in its own unique family Curtisiaceae .
Cornus foemina is a species of flowering plant in the family Cornaceae known by the common names stiff dogwood [2] and swamp dogwood. [4] [5] It is native to parts of the eastern and southeastern United States. [2] This plant is a large shrub or small tree up to 25 feet tall with trunks up to 4 inches wide. The bark is smooth or furrowed.
Pages in category "Tree diseases" The following 33 pages are in this category, out of 33 total. ... Foamy bark canker; Forest pathology; H. Helicotylenchus dihystera;
Bark-binding is a disease in trees that causes the bark of the plant to become hardened and tough, restricting the growth of the trunk.It is caused by a sudden restriction of the tree's growth, the rubbing of livestock against the trunk, or by lichens and other parasites on the bark.
Trunk injection or endotherapy also known as vegetative endotherapy, [1] [2] [3] is a method of target-precise application of pesticides, [4] [5] [6] plant resistance activators, [7] or fertilizers [8] into the xylem vascular tissue of a tree with the purpose of protecting the tree from pests, or to inject nutrients to correct for nutrient deficiencies.
Co-existing tree and plant species will gain in the void left by the affected species, but often providing different functions. Eastern hemlock, for example, is commonly replaced by black birch in the northeast—a slow-growing, shade-tolerant and deep shade producing evergreen tree, replaced by a fast-growing, open, deciduous tree. While short ...
The foamy bark canker is a disease affecting oak trees in California caused by the fungus Geosmithia sp. #41 and spread by the Western oak bark beetle (Pseudopityophthorus pubipennis). This disease is only seen through the symbiosis of the bark beetles and the fungal pathogen .