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