Dorji, Thinlay


First Report of “Candidatus Liberibacter asiaticus”, the Agent of Citrus Huanglongbing (Ex-greening) in Bhutan

Doe et al. (2003). Plant Disease 87 (4)
Ca. Liberibacter asiaticus
Mandarin (Citrus reticulata) is the most important cash crop in Bhutan and plantations total approximately 1.8 million trees (Ministry of Agriculture, Thimphu, Bhutan, 2000). Most trees are a local mandarin variety. Seedlings trees are produced by local farmers or supplied by Druk Seed Nursery. Mandarin seedlings have also been introduced from India. In the mid-1990s, mandarin trees growing in Punakha Valley and Wangdue districts began showing symptoms of decline that included sparse yellow fol