Pierce’s Illness (PD) of grapevine (Vitis vinifera) is a result of the bacterium Xylella fastidiosa and is also vectored by xylem sap-sucking insects, Whilst Grapevine Pink Blotch Virus (GRBV) results in Red Blotch Condition and is also transmitted from the laboratory by alfalfa leafhopper Spissistilus festinus. The importance of anthocyanin https://lyricsdemon.com/