Pierce’s Sickness (PD) of grapevine (Vitis vinifera) is attributable to the bacterium Xylella fastidiosa and is particularly vectored by xylem sap-sucking insects, Whilst Grapevine Red Blotch Virus (GRBV) brings about Red Blotch Disorder and is also transmitted within the laboratory by alfalfa leafhopper Spissistilus festinus. The importance of anthocyanin accumulations https://lyricsdemon.com/