Minnis, A M <br/><br/>
First Report of Powdery Mildew Caused by Podosphaera leucotricha on Callery Pear in North America.  [electronic resource] 

 -  Plant disease  Feb 2010 
 - 279 p.  digital 
<br/><br/> Publication Type: Journal Article 
<br/><br/><label>ISSN: </label>0191-2917 
<br/><br/><label>Standard No.: </label>10.1094/PDIS-94-2-0279B  doi