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) results in Purple Blotch Sickness and is also transmitted during the laboratory by alfalfa leafhopper Spissistilus festinus. The significance of anthocyanin accumulations https://lyricsdemon.com/