Studies on the association of certain phytopathogens.

Association of plants is by no means a new subject for study, though so far reports dealing with association of phytopathogens have been comapartively rare,as a survey of theliterature on the subject indicates. Most attention has evidently been turned to other branches of research. Recently, during an extensive survey of storage rots at Macdonald College and vicinity, it has been observed by the writer that even though the rots were relatively abundant and many vegetables and fruits were attackedtthe number of speciesof pathogenic organisms on a single specimen was very limited. [...