ABSTRACT


Luigi Ciampi P.1 y Susana González M.2
 

The etiological agents that cause soft-rots in potato plants and tubers in field, were studied on 17 localities from Cautín, Valdivia, Llanquihue and Chiloe.
One hundred ninety three cultures were isolated, 32 of them were virulent and were classified into the following taxonomic groups: 28 cultures of Erwinia carotovara, three of genus Pseudomonas Migula andone of genus Bacillus Cohn.

Keywords:
1Ing. Agr., Instituto de Ecología, Facultad de Ciencias, Universidad Austral de Chile. Casilla 567, Valdivia, Chile.
2Tecnólogo Médico, Instituto de Defensa de las Plantas, Facultad de Ciencias Agrarias, Universidad Austral de Chile. Casilla 567, Valdivia, Chile.