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