3.A seed-borne virus isolate,causing adsukibean (Phaseolus angularis)seedlings puckered mosaic,was collected in Hebei province. lt was transmittedby sap and aphides (Myzus persicae,Aphis craccivora) in a non-persistentmanner. lts TIP was 55℃-60℃,DEP 10~(-2)—10~(-3),LIV 1—2 days.