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