Even though U. S. Federal law prohibited domestic research on plant diseases like ‘greening’ before they were discovered here in the U. S., University researchers say global research is of great help to stay cutting edge. 
 Report (2:00 wma)
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Even though U. S. Federal law prohibited domestic research on plant diseases like ‘greening’ before they were discovered here in the U. S., University researchers say global research is of great help to stay cutting edge.  Report (2:00 wma)