show Abstracthide AbstractEutypa lata is the causal agent of Eutypa dieback of grapevines (Vitis vinifera). Eutypa symptoms include: 1) a dark wedge-shaped area in cross-sections of the trunk and cordons; 2) external cankers, 2) stunted shoots; and; 4) reduced yields. Plant hosts include lemon, apple, pear, almond, and pistachio.