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