Pierce’s Ailment (PD) of grapevine (Vitis vinifera) is due to the bacterium Xylella fastidiosa and it is vectored by xylem sap-sucking insects, While Grapevine Red Blotch Virus (GRBV) brings about Red Blotch Condition and is transmitted in the laboratory by alfalfa leafhopper Spissistilus festinus. The importance of anthocyanin accumulations in https://lyricsdemon.com/