| identification and characterization of eutypa leptoplaca, a new pathogen of grapevine in northern california. | although eutypa lata is the main agent of eutypa dieback of grapevine, another species of eutypa has been isolated from diseased grapevines in northern california. stromata of this recently discovered eutypa were also collected from acer macrophyllum, a. negundo, and fraxinus latifolia in the vicinity of vineyards, and appeared commonly on umbellularia californica in some mixed-evergreen forests of napa and sonoma counties. this second species of eutypa was distinguished from e. lata because of ... | 2004 | 15535070 |