Approximately 10% of yellows samples of kumquat collected from Yilan county were examined positive of HLBB, and 60% among the HLBB-infected kumquats were co-infected with CTV or CTLV.

• 宜兰县金柑之萎黄病株，感染黄龙病比率最低，仅有10%25，当中CTLV或CTV复合感染的比率皆超过60%25。