Skip to main content
ARS Home » Pacific West Area » Riverside, California » National Clonal Germplasm Repository for Citrus » Research » Publications at this Location » Publication #316553
Title: PROCENTAJE DE PSILIDOS PORTADORES DE Canidatus Liberibacter asiaticus Y SU RELACION CON LA INCIDENCIA DE HLB EN CINCO HUERTAS COMERCIALES DE LIMON MEXICANO {Citrus aurantifolia (Christm) Swingle} EN EL ESTADO DE COLIMA MEXICO

Author
item ALANIS-MATINEZ, E - Senasica
item Krueger, Robert
item CORA-VALENCIA, E - Senasica
item FLORES-VIRGEN, R - Senasica
item ROBLES-GARCIA, P - Senasica

Submitted to: Meeting Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 11/1/2012
Publication Date: 12/1/2012
Citation: Alanis-Matinez, E.I., Krueger, R., Cora-Valencia, E., Flores-Virgen, R., Robles-Garcia, P.L. 2012. PROCENTAJE DE PSILIDOS PORTADORES DE Canidatus Liberibacter asiaticus Y SU RELACION CON LA INCIDENCIA DE HLB EN CINCO HUERTAS COMERCIALES DE LIMON MEXICANO {Citrus aurantifolia (Christm) Swingle} EN EL ESTADO DE COLIMA MEXICO. 3° Simposio Nacional sobre investigación para el manejo del Psílido Asiático de los Cítricos y el Huanglongbing en México. p 51-58.

Interpretive Summary: Asian citrus psyllids (Diaphorina citri) were individually analyzed by qPCR to detect Candidatus Liberibacter asiaticus (CLas). The psyllids were collected in Mexican lime (Citrus aurantifolia) trees in five commercial orchards in Tecomán and Manzanillo, Colima with severe symptoms of classical mottling and mild defoliation in several branches around the crown. We estimated the percentage of positive psyllids per tree, orchard and municipality, to determine whether there is a direct relationship between the percentages of psyllids carrying the bacteria with HLB with the incidence rate of HLB in the orchards. The percentage of CLas positive psyllids per tree was 5 to 49.63% and the percentage of positive psyllids by orchard was 20 to 30.57%. The percentage of positive psyllids collected in the orchard that was100% infected with HLB was lower than the percentage of positive psyllids in the orchard with the lowest incidence (11.47%). There was no correlation between the percentage of positive psyllids to CLas and the incidence of HLB in the orchard.

Technical Abstract: Asian citrus psyllids (Diaphorina citri) were individually analyzed by qPCR to detect Candidatus Liberibacter asiaticus (CLas). The psyllids were collected in Mexican lime (Citrus aurantifolia) trees in five commercial orchards in Tecomán and Manzanillo, Colima with severe symptoms of classical mottling and mild defoliation in several branches around the crown. We estimated the percentage of positive psyllids per tree, orchard and municipality, to determine whether there is a direct relationship between the percentages of psyllids carrying the bacteria with HLB with the incidence rate of HLB in the orchards. The percentage of CLas positive psyllids per tree was 5 to 49.63% and the percentage of positive psyllids by orchard was 20 to 30.57%. The percentage of positive psyllids collected in the orchard that was100% infected with HLB was lower than the percentage of positive psyllids in the orchard with the lowest incidence (11.47%). There was no correlation between the percentage of positive psyllids to CLas and the incidence of HLB in the orchard.