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rubber tree Fer F. erecta: Japanese fig Fl F. lyrata: fiddle-leaf fig Bacterial diseases. Bacterial diseases; Common name: Scientific name: Plants affected:
Miscellaneous diseases and disorders; Alfalfa greening (green stain) Unknown Bitter pit Localized calcium deficiency Black end Water imbalance Black speck (skin speckling) Associated with low oxygen in storage Blossom blast Boron deficiency Brown core High CO 2: Core breakdown (Bartlett) Senescence Cork spot Associated with calcium deficiency
Miscellaneous diseases and disorders diseases; Peach tree short life Complex of ring nematode, bacterial canker, Cytospora canker, and/or cold injury References
Phomopsis blight of juniper is a foliar disease discovered in 1917 [1] caused by the fungal pathogen Phomopsis juniperovora.The fungus infects new growth of juniper trees or shrubs, i.e. the seedlings or young shoots of mature trees.
Because this disease is caused by multiple species within the genus Armillaria, it has an extremely broad host range. Hundreds of trees and shrubs are susceptible to root rot to varying degrees. In fact, the only two genera of tree known to be resistant to Armillaria root rot are larch and birch. Further investigation is being conducted for ...
Oak wilt is a devastating exotic disease, killing some trees rapidly in a single season. [7] Oak wilt is an important disease in urban areas where trees are highly valued. . The disease reduces property values because of the loss of trees and is economically costly to the property owner since they or the local government must pay for tree remo
The disease tends to occur in patches due to a primarily short range spread mechanism. [3] Infected or decayed roots break close to the root collar forming “root balls.” [ 1 ] Laminated root rot is frequently detected during ground survey when canopy openings and standing dead and fallen trees are observed. [ 4 ]
It is caused by phytoplasmas which infect the phloem (inner bark) of the tree. [2] Similar phytoplasmas, also known confusingly as 'Elm yellows', also occur in Europe. [3] Infection and death of the phloem effectively girdles the tree and stops the flow of water and nutrients. The disease affects both wild-growing and cultivated trees.
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