102:. The symptoms are a marked yellowing of the leaves, an upright appearance to the leaves, with severe cases resulting in early death of the plant. Tuber initiation and growth is affected. Many small tubers are formed, frequently misshaped. In some cases, the tubers seem to have lost sprouting inhibition and have begun sprouting before harvest. At later stages, the tubers sprout weakly, if at all.
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A very similar disease has been described in tomatoes. In addition to the foliar symptoms, mature fruit is very much smaller, tends to have a pointy end, and frequently they occur in larger clusters of fruit than normal. In severe cases, the yellowing progresses to plant death. In addition to psyllid
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Symptoms in capsicum plants: Include pale green or yellow leaves with spiky tips. Leaves may be misshapen. Leaf stalks may be misshapen, leaf stalks appear short, flowers may drop prematurely and parts of the plant may die back. Symptoms may vary in severity between
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Symptoms in tomato plants: Include leaf curling and yellowing stunting of the plant, fruit occasionally misshapen with a strawberry like appearance. The leaf axial or stalk may also become very long and the fruit development may be
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Symptoms in potato tops can include these being smaller than normal, yellowing and the tops can develop a scorched appearance before premature collapse.
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causes these symptoms. If pest control occurs at an early stage of the disease, the plants appear to be able to recover.
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203:"'Candidatus Liberibacter solanacearum', a liberibacter associated with plants in the family Solanaceae"
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Liberibacter solanacearum' has been reported from Zebra Chip potatoes in both Texas and New
Zealand.
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A summary of symptoms from plants in New
Zealand with photos of tomato and capsicum plants:
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This same
Liberibacter has recently been found in potatoes in New Zealand and in the US.
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crops show a similar fruit effect, but generally with no, or very little, foliar symptom.
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Candidatus
Liberibacter spp. as putative causal agent of Zebra Chip of potatoes
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Liberibacter solanacearum' has been associated with this disease.
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L. Liefting; B. S. Weir; S. R. Pennycook; G. R. G. Clover (2009).
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International
Journal of Systematic and Evolutionary Microbiology
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It is thought that a toxin produced by the nymph stage of the
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176:"New bacterium affects fresh tomatoes and capsicums"
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178:. MAF Biosecurity New Zealand. Archived from
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280:Bacterial plant pathogens and diseases
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113:feeding, a new species of bacterium '
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14:
92:infested by the potato/tomato
1:
145:The potato disorder/disease "
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37:Liberibacter solanacearum
16:Plant disease in potatoes
222:10.1099/ijs.0.007377-0
149:" is related in that '
99:Bactericera cockerelli
59:Bactericera cockerelli
249:2008-08-29 at the
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215:(Pt 9): 2274–6.
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88:is a disease of
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290:Candidatus taxa
285:Potato diseases
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251:Wayback Machine
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86:Psyllid yellows
22:Psyllid yellows
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182:on 13 May 2010
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27:Causal agents
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184:. Retrieved
180:the original
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76:Distribution
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79:New Zealand
274:Categories
159:References
152:Candidatus
147:Zebra chip
135:varieties.
116:Candidatus
32:Candidatus
186:2 January
67:EPPO Code
247:Archived
231:19620372
121:Capsicum
90:potatoes
131:uneven.
107:psyllid
94:psyllid
54:Vectors
229:
71:LIBEPS
48:Potato
44:Hosts
227:PMID
188:2009
217:doi
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213:59
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167:^
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