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