Agronomy and Crop Science


Publications
763

‘Candidatus Liberibacter solanacearum’ Associated with Bactericera trigonica-Affected Carrots in the Canary Islands

Citation
Alfaro-Fernández et al. (2012). Plant Disease 96 (4)
Names
“Liberibacter solanacearum”
Abstract
In 2009 and 2010, commercial carrot (Daucus carota L.) fields located in Tenerife (Canary Islands, Spain) showed symptoms of curling, yellow, bronze, and purple discoloration of leaves, stunting of shoots and tap roots, and proliferation of secondary roots. A large population of the psyllid Bactericera trigonica was noted in those fields. Similar symptoms were reported previously in carrot-production areas of the Canary Islands and mainland Spain that were associated with stolbur and aster yell

First Report of ‘Candidatus Liberibacter solanacearum’ in Carrot in Mainland Spain

Citation
Alfaro-Fernández et al. (2012). Plant Disease 96 (4)
Names
“Liberibacter solanacearum”
Abstract
In the summer of 2008, symptoms of leaf curling with yellow, bronze, and purple discoloration, twisting of petioles, stunting of shoots and tap roots, and proliferation of secondary roots were observed in 18 commercial carrot (Daucus carota L.) fields (~62 ha) severely infested with psyllids (mainly Bactericera sp.) from 52 fields (297 ha) located in Alicante and Albacete provinces of Spain. Incidence of symptomatic plants was variable among fields. Similar symptoms were observed in 2009, 2010,

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

Citation
Munyaneza et al. (2012). Plant Disease 96 (3)
Names
“Liberibacter solanacearum”
Abstract
Carrot (Daucus carota) plants with symptoms resembling those associated with the carrot psyllid Trioza apicalis and the bacterium “Candidatus Liberibacter solanacearum” (1–4) were observed in 70% of commercial fields in southern Sweden in August 2011, with approximately 1 to 45% symptomatic plants per field. T. apicalis, a pest of carrot in northern and central Europe, including Sweden, can cause as much as 100% crop loss and is associated with “Ca. L. solanacearum” (1–4). Symptoms on affected

First Report of Zebra Chip Disease and “Candidatus Liberibacter solanacearum” on Potatoes in Oregon and Washington State

Citation
Crosslin et al. (2012). Plant Disease 96 (3)
Names
“Liberibacter solanacearum”
Abstract
In August of 2011, potato (Solanum tuberosum) tubers grown in the lower Columbia Basin of southern Washington State and northern Oregon were observed with internal discolorations suggestive of zebra chip disease (ZC). Symptoms included brown spots, streaks, and stripes in and near the vascular tissue, typical of ZC (1). Symptoms were observed in cvs. Alturas, Russet Norkotah, Pike, Ranger Russet, Umatilla Russet, and Russet Burbank. Foliar symptoms on plants that produced symptomatic tubers inc

First Report of Zebra Chip Disease and “Candidatus Liberibacter solanacearum” on Potatoes in Idaho

Citation
Crosslin et al. (2012). Plant Disease 96 (3)
Names
“Liberibacter solanacearum”
Abstract
In September 2011, potato (Solanum tuberosum L.) tubers graded in a packing facility in south-central Idaho were observed with internal discolorations suggestive of zebra chip disease (ZC). Symptoms were observed in 1 to 2% of tubers of cv. Russet Norkotah and included brown spots and streaks especially in and near the vascular tissue. Some tubers also showed a dark and sunken stolon attachment typical of ZC (1). Initially, tissue samples were taken from seven symptomatic tubers and tested by P

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

Citation
Munyaneza et al. (2012). Plant Disease 96 (3)
Names
“Liberibacter solanacearum”
Abstract
Carrot (Daucus carota) plants with symptoms resembling those associated with the carrot psyllid Trioza apicalis and the bacterium “Candidatus Liberibacter solanacearum” (1–4) were observed in 70 to 80% of commercial fields and experimental plots in southeastern Norway from late July to mid-September of 2011; all cultivars grown were affected with approximately 10 to 100% symptomatic plants per field. T. apicalis, a pest of carrot in northern and central Europe, including Norway, can cause as mu