Preliminary Study on Accuracy and Distribution Statue of Melon Vein Necrosis Virus in Xinjiang

【 Objective 】 To investigate and analyze the occurrence and distribution of melon vein necrosis virus in the main melon planting area of in Xinjiang, and provide a method and basis for the identification and control of melon vein necrosis virus.【 Method 】Using mechanical inoculation method to perform inoculation on the healthy melon plants, and pathogen morphological characteristics of the leaves collected from infected MVNV melons in the field and artificially infected MVNV leaves of Hami melon were observed by transmission electron microscopy (TEM).【 Result 】The disease symptoms of artificially infected leaves were exactly the same with those in fields, and by transmission electron microscopy, it was confirmed that it belonged to the genus Carassius auratus (Carmovirus), which belongs to the family of linear virus (Flex iv iridae). Through investigation, it was made clear that the disease occurred in the main planting areas of Xinjiang melon, and the variation of the disease in different regions and different years in the same area was very different.【 Conclusion 】Melon vein necrosis virus generally occurs in melon growing area in Xinjiang, and in some areas it has led to the total production failure of muskmelon crops. The conclusion occurrence and epidemic regularity of this virus need to be further studied.