In cowpea sap, the thermal inactivation point was between -0℃, the dilution end point was between 0~(-)-0~(- ) and infectivity was retained for - days, It was transmissible by cowpea seeds in high level (.9%—.7%) and by Myzus persicae.
In cowpea sap, the thermal inactivation point was between -0℃, the dilution end point was between 0~(-)-0~(- ) and infectivity was retained for - days, It was transmissible by cowpea seeds in high level (.9%—.7%) and by Myzus persicae.
其稀释限点0~(-)-0~(- ),致死温度—0℃,体外存活期—天。 种子传毒率为.9—.7%。