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Cypress canker is a disease affecting Cupressus species, caused by one of several species of fungus in the genus Seiridium. Infection causes die-back of twigs and branches in susceptible cypress trees, [ 1 ] with rapidly increasing amounts of damage and the death of the tree.
Cupressus sempervirens, the Mediterranean cypress (also known as Italian cypress, [1] Tuscan cypress, Persian cypress, or pencil pine), is a species of cypress native to the eastern Mediterranean region and Iran.
On the other hand, no sexual stage of species Seiridium cardinale is known, so that is its only name. [ 2 ] [ 3 ] Seiridium cardinale is important to gardeners and foresters as they cause the devastating Cypress canker disease on Cupressus , Thuja , and related conifers in Northern Europe, America, Australia, [ 4 ] and New Zealand.
Olive quick decline syndrome (OQDS) (in Italian: Complesso del Disseccamento Rapido dell'Olivo, CDRO or CoDiRo) is a wasting disease of olive trees which causes dieback of the leaves, twigs and branches so that the trees no longer produce crops of olives.
Chamaecyparis lawsoniana, known as the Lawson's cypress or Port Orford cedar. [4] This is a native species to Oregon and northwestern California. [4] Taxodium: Taxodium ascendens, commonly known as pond cypress [5] and native to North America. Taxodium distichum, commonly known as bald cypress and native to the southeastern United States. [6]
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Blight is a rapid and complete chlorosis, browning, then death of plant tissues such as leaves, branches, twigs, or floral organs. [1] Accordingly, many diseases that primarily exhibit this symptom are called blights. Several notable examples are: [citation needed]
Significant variation in symptoms is seen between diseases, though some symptoms are expressed across species. On a macroscopic scale, plants infected with a X. fastidiosa-related disease exhibit symptoms of water, zinc, and iron deficiencies, [27] manifesting as leaf scorching and stunting in leaves turning them yellowish-brown, gummy substance around leaves, [27] fruit reduction in size and ...