Survey and detection of candidatus liberibacter asiaticus causing Huanglongbing (HLB) disease of citrus in manipur

Huanglongbing (HLB), also known as the “greening disease” is a serious disease affecting major citrus growing groves in India as well as in the world. The presumptive causal agent is a fastidious, gram negative, α- subdivision of the proteobacteria named Candidatus Liberibacter asiaticus (CLas) transmitted by Asian citrus psylla (Diaphorina citri).