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Murraya paniculata and Related Species as Potential Hosts and Inoculum Reservoirs of ‘Candidatus Liberibacter asiaticus’, Causal Agent of Huanglongbing

Citation
Damsteegt et al. (2010). Plant Disease 94 (5)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB), considered to be the most serious insect-vectored bacterial disease of citrus, is transmitted in nature by the Asian citrus psyllid Diaphorina citri and the African citrus psyllid Trioza erytreae. D. citri was discovered in southern Florida in 1998 and the HLB disease in 2005. Both have become established throughout citrus-producing areas of Florida. Murraya species are widely grown in southern Florida as ornamental hedges and are readily colonized by D. citri vectors. Colo

First Report of “Candidatus Liberibacter solanacearum” Associated with Psyllid-Affected Carrots in Europe

Citation
Munyaneza et al. (2010). Plant Disease 94 (5)
Names
“Liberibacter solanacearum”
Abstract
Carrot (Daucus carota) plants with symptoms resembling those of carrot psyllid (Trioza apicalis) damage (3,4) were observed in 14 commercial fields in southern Finland in August 2008; all cultivars grown were affected at approximately 5 to 35% symptomatic plants per field. T. apicalis, a pest of carrots in northern and central Europe, can cause up to 100% crop loss (3,4). Symptoms on affected plants included leaf curling, yellow and purple discoloration of leaves, stunted growth of shoots and r

First Report of ‘Candidatus Liberibacter asiaticus’ Associated with Huanglongbing in Sweet Orange in Ethiopia

Citation
Saponari et al. (2010). Plant Disease 94 (4)
Names
Ca. Liberibacter asiaticus
Abstract
Huanglongbing (HLB) is a serious disease of citrus worldwide. Three different ‘Candidatus Liberibacter’ species are associated with HLB: ‘Ca. Liberibacter asiaticus’, ‘Ca. L. africanus’, and ‘Ca. L. americanus’ (1). ‘Ca. L. africanus’ and its vector, Trioza erytreae, are both heat sensitive, and when present, occur in citrus when temperatures remain below 30 to 32°C. In Africa, ‘Ca. L. africanus’ and T. erytreae have been reported in South Africa, Zimbabwe, Malawi, Burundi, Kenya, Somalia, Ethi

First Report of “Candidatus Liberibacter solanacearum” on Field Tomatoes in the United States

Citation
French-Monar et al. (2010). Plant Disease 94 (4)
Names
“Liberibacter solanacearum”
Abstract
In August 2008, 30% of tomato (Solanum lycopersicum) plants in plots in Lubbock County, Texas showed yellowing, lateral stem dieback, upward leaf curling, enlargement of stems, adventitious roots, and swollen nodes. Yellowing in leaves was similar to that seen with zebra chip disease (ZC) of potato that was confirmed in a potato field 112 km away in July 2008 and was associated with a ‘Candidatus Liberibacter’ species (1), similar to findings earlier in 2008 in New Zealand and California (2,3).