Pierce’s Disease (PD) of grapevine (Vitis vinifera) is attributable to the bacterium Xylella fastidiosa which is vectored by xylem sap-sucking insects, whereas Grapevine Pink Blotch Virus (GRBV) brings about Purple Blotch Sickness and is also transmitted within the laboratory by alfalfa leafhopper Spissistilus festinus. The importance of anthocyanin accumulations in https://lyricsdemon.com/