Elm yellows
Elm yellows is a plant disease of elm trees that is spread by leafhoppers or by root grafts. Elm yellows, also known as elm phloem necrosis, is very aggressive, with no known cure. Elm yellows occurs in the eastern United States, and southern Ontario in Canada. It is caused by phytoplasmas which infect the phloem (inner bark) of the tree. Similar phytoplasmas, also known confusingly as 'Elm yellows', also occur in Europe. 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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Candidatus Phytoplasma fraxiniElmElm YellowsElms in AustraliaList of elm diseasesPhytoplasmaScaphoideusUlmus 'Arno'Ulmus 'Fiorente'Ulmus 'Frontier'Ulmus 'Homestead'Ulmus 'Lobel'Ulmus 'Morfeo'Ulmus 'Morton' = AccoladeUlmus 'Nanguen' = LuteceUlmus 'Patriot'Ulmus 'Plinio'Ulmus 'San Zanobi'Ulmus 'Wanoux' = VadaUlmus alataUlmus americanaUlmus americana 'American Liberty'Ulmus americana 'Ascendens'Ulmus americana 'Augustine'Ulmus americana 'Aurea'Ulmus americana 'Beaverlodge'Ulmus americana 'Beebe's Weeping'Ulmus americana 'Brandon'Ulmus americana 'Burgoyne'Ulmus americana 'Columnaris'Ulmus americana 'Creole Queen'Ulmus americana 'Delaware'Ulmus americana 'Exhibition'Ulmus americana 'Fiorei'Ulmus americana 'Flick's Spreader'Ulmus americana 'Independence'Ulmus americana 'Iowa State'Ulmus americana 'Jackson'Ulmus americana 'Jefferson'Ulmus americana 'L'Assomption'
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Elm yellows
Elm yellows is a plant disease of elm trees that is spread by leafhoppers or by root grafts. Elm yellows, also known as elm phloem necrosis, is very aggressive, with no known cure. Elm yellows occurs in the eastern United States, and southern Ontario in Canada. It is caused by phytoplasmas which infect the phloem (inner bark) of the tree. Similar phytoplasmas, also known confusingly as 'Elm yellows', also occur in Europe. 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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Elm yellows is a plant disease ...... -growing and cultivated trees.
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959,861,843
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caption
Symptoms of elm phloem necrosis
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causal agents
Phytoplasmas
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distribution
Eastern United States and southern Ontario, Canada
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hosts
Elms
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name
Elm yellows
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treatment
Tetracycline has been shown to slow down the disease
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vectors
Leafhoppers
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hypernym
type
comment
Elm yellows is a plant disease ...... -growing and cultivated trees.
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label
Elm yellows
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