Pierce’s Disease (PD) of grapevine (Vitis vinifera) is due to the bacterium Xylella fastidiosa which is vectored by xylem sap-sucking insects, While Grapevine Red Blotch Virus (GRBV) causes Pink Blotch Condition which is transmitted inside the laboratory by alfalfa leafhopper Spissistilus festinus. The significance of anthocyanin accumulations in distinct tissues https://lyricsdemon.com/