Observations revealed that there existed three types of symptom in the ramiecalocos as mosaic,chlorisis and malformation omony in which the main type was mosaic.The test result thowed that the diseased plants were 25.09%~36.27%shorter in length,23.26%~25.26%less in stem thickness,36.15%~70%less in the leaf area and 28.50%less in crude fiber weight than the healthy plants.Observations also revealed that the diseasesymptoms appeared when the ramie had just come out of soil,but the serious development ofthe dissease was in April or May for the ...