Pierce’s sickness (PD) of grapevine (Vitis vinifera) is a result of the bacterium Xylella fastidiosa and it is vectored by xylem sap-sucking insects, Whilst Grapevine Red Blotch Virus (GRBV) will cause Red Blotch Condition and it is transmitted in the laboratory by alfalfa leafhopper Spissistilus festinus. The importance of anthocyanin https://lyricsdemon.com/