Pierce’s illness (PD) of grapevine (Vitis vinifera) is because of the bacterium Xylella fastidiosa and is also vectored by xylem sap-sucking insects, whereas Grapevine Red Blotch Virus (GRBV) results in Crimson Blotch Disorder and it is transmitted from the laboratory by alfalfa leafhopper Spissistilus festinus. The importance of anthocyanin accumulations https://lyricsdemon.com/