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