Majumder, S.


First Report of Citrus Greening Disease and Associated Bacterium “Candidatus Liberibacter asiaticus” from Bhutan

Ahlawat et al. (2003). Plant Disease 87 (4)
Ca. Liberibacter asiaticus
During July 2002, surveys of mandarin orchards were conducted in Punakha Valley and Wangdue districts of Bhutan. Symptoms of the greening disease were observed in most of the orchard. The incidence of disease was recorded up to 30% in 24 private orchards with more than 5,000 trees total. Affected trees were generally stunted with leaves showing symptoms of mottling. Sometimes, symptoms were seen only on one part of the canopy. The greening disease is caused by a fastidious phloem restricted bac