1999 The Regents of The University of California Pierce s disease is a bacterium, Xylella fastidiosa , spread by sharpshooters that feed on infected vegetation and then inject the bacterium into the sap of nearby grapevines.
(sharpshooters; feed; on infected vegetation) (a bacterium; inject; the bacterium; into the sap of nearby grapevines; T:then)
sharpshooters a bacterium
feed inject
on infected vegetation
the bacterium into the sap of nearby grapevines T:then