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