Moragrega, Concepció Apical Necrosis and Premature Drop of Persian (English) Walnut Fruit Caused by Xanthomonas arboricola pv. juglandis. [electronic resource] - Plant disease Dec 2011 - 1565-1570 p. digital Publication Type: Journal Article ISSN: 0191-2917 Standard No.: 10.1094/PDIS-03-11-0259 doi