Citrus tristeza virus (CTV) is the most destructive viral pathogen of citrus and has been an impo... more Citrus tristeza virus (CTV) is the most destructive viral pathogen of citrus and has been an important concern for the citrus industry in the Dominican Republic. Earlier studies documented widespread distribution of mild isolates of the T30 genotype, which caused no disease in the infected trees, and a low incidence of isolates of the VT and T3 genotypes, which were associated with economically damaging decline and stem-pitting symptoms in sweet orange and Persian lime, the two major citrus varieties grown in the Dominican Republic. In light of the dramatic increase in the number of severely diseased citrus trees throughout the country over the last decade, suggesting that field populations of CTV have changed, we examined the CTV pathosystem in the Dominican Republic to assess the dynamics of virus populations. In this work, we characterized the molecular composition of 163 CTV isolates from different citrus-growing regions. Our data demonstrate a dramatic change in CTV populations...
Citrus Huanglongbing (HLB) is considered the most important citrus disease around the world. HLB ... more Citrus Huanglongbing (HLB) is considered the most important citrus disease around the world. HLB was first reported in the Dominican Republic in September 2008. As a result, the National Committee for an Integrated Management of HLB has been created to take action to mitigate and reduce the spread of the disease around the country. All actions taken for mitigation are based on four important aspects: (1) diagnosis of the disease using polymerase chain reaction (PCR); (2) education opportunties for citrus growers, nurserymen, and private and official technicians; (3) quarantine or regulation of the movement of citrus plants without healthy certification to eliminate and eradicate infected plants; and (4) monitor and control the psillid population. Under this program, more than three thousand trees have been sampled and analyzed by PCR, and more than 50 thousand trees have been scouted in the field. HLB has been found in at least 12 out of 32 provinces of the country, with the highest...
Citrus tristeza virus (CTV) is the most destructive viral pathogen of citrus and has been an impo... more Citrus tristeza virus (CTV) is the most destructive viral pathogen of citrus and has been an important concern for the citrus industry in the Dominican Republic. Earlier studies documented widespread distribution of mild isolates of the T30 genotype, which caused no disease in the infected trees, and a low incidence of isolates of the VT and T3 genotypes, which were associated with economically damaging decline and stem-pitting symptoms in sweet orange and Persian lime, the two major citrus varieties grown in the Dominican Republic. In light of the dramatic increase in the number of severely diseased citrus trees throughout the country over the last decade, suggesting that field populations of CTV have changed, we examined the CTV pathosystem in the Dominican Republic to assess the dynamics of virus populations. In this work, we characterized the molecular composition of 163 CTV isolates from different citrus-growing regions. Our data demonstrate a dramatic change in CTV populations...
Citrus Huanglongbing (HLB) is considered the most important citrus disease around the world. HLB ... more Citrus Huanglongbing (HLB) is considered the most important citrus disease around the world. HLB was first reported in the Dominican Republic in September 2008. As a result, the National Committee for an Integrated Management of HLB has been created to take action to mitigate and reduce the spread of the disease around the country. All actions taken for mitigation are based on four important aspects: (1) diagnosis of the disease using polymerase chain reaction (PCR); (2) education opportunties for citrus growers, nurserymen, and private and official technicians; (3) quarantine or regulation of the movement of citrus plants without healthy certification to eliminate and eradicate infected plants; and (4) monitor and control the psillid population. Under this program, more than three thousand trees have been sampled and analyzed by PCR, and more than 50 thousand trees have been scouted in the field. HLB has been found in at least 12 out of 32 provinces of the country, with the highest...
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