greenbug
... that the greenbug is the vector of several plant viruses?
... that the <b id="mwBPI"><a href="./Schizaphis_graminum" id="mwBPM" rel="mw:WikiLink" title="Schizaphis graminum">greenbug</a></b> is the <a class="mw-redirect" href="./Vector_(epidemiology)" id="mwBPQ" rel="mw:WikiLink" title="Vector (epidemiology)">vector</a> of several plant viruses?