Hong, C X <br/><br/>
Downy Mildew of Rudbeckia fulgida cv. Goldsturm by Plasmopara halstedii in Virginia.  [electronic resource] 

 -  Plant disease  Nov 2006 
 - 1461 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0191-2917 
<br/><br/><label>Standard No.: </label>10.1094/PD-90-1461B  doi