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