Preliminary Study on the Elimination of Citrus Tatter Leaf Virus

Citrus plants infected with tatter leaf virus (CTLV) were treated by shoot-tip grafting (STG), heat treatment, and a combination of STG with pre-heating treatment respectively.CTLV-free plants were successfully obtained from the combination of STG and pre-heating treatment at 40℃ 16h (day) /30℃ 8h (night) for more than 30 days.However, we failed to obtain CTLV-free plants by using a shoot-tip of 0.4mm or longer as grafting materials.The CTLV-eliminated rate was very low by using only the heat treatment, and CTLV can not be eliminated by STG without pre-heating treatment.