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