earticle

영어

The occurrence of Huanglongbing (HLB) had been surveyed in 18 citrus orchards at 6 distantly separated locations such as Jejusi, Jocheoneup, Aewoleup and Hangyengmiaen, Daejungeup and Andeokmiaen, Seogwiposi, and Namwoneup form April to October of 2019. Psyllid, a vector of HLB, had been monitored using two commercial traps every orchards twice a month and trapping insects were identified by optical or microscopical diagnosis. As a results, 6 sorts of psyllid were identified but Diaphorina citri which is the vector of HLB has not been found. On the other hand, diagnosis of the citrus leaves showing HLB similar symptom were carried out by using HLB specific primer set. As a result, there were no HLB infected leaves.