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