Search results
Results from the WOW.Com Content Network
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.
It is the primary cause of Cypress canker, a fungal disease that affects various species of trees in the genus Cupressus, including Cupressus sempervirens, the Provence cypress. This disease leads to the decline of infected trees and has led to the destruction of millions in central Italy in particular. [1] [2] It causes branch and trunk cankers.
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. [5] [6] Seiridium cardinale is from California and was introduced to Europe around the 1930s, probably from infected nursery stock ...
For premium support please call: 800-290-4726 more ways to reach us
The vast majority of the trees in cultivation are selected cultivars with a fastigiate crown, with erect branches forming a narrow to very narrow crown often less than a tenth as wide as the tree is tall. The dark green "exclamation mark" shape of these trees is a highly characteristic signature of Mediterranean town and village landscapes.
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.
Cinara cupressi, the cypress aphid, [1] is a brownish soft-bodied aphid. It sucks sap from twigs of conifers , and can cause damage to the tree, ranging from discoloring of the affected twig to the death of the tree. [ 2 ]
The most frequent symptoms of disease caused by P. lateralis are root and collar lesions. Trees become infected by their roots coming into contact with the zoospores in the soil or water. Hyphae then develop in larger roots and into the root collar where they kill the inner bark . [ 5 ]