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