Studies on the control of apple violet root-rot caused by Helicobasidium Monpa Tanaka.

I. Isolation of pathogene and its antagonists.

Abstract

The isolation of the pathogene was performed in July of 1952. In the coursh of this work, we noticed several microbes antagonistic to the parasites and selected five lines (A, B, C, D and E) which showed higher antagonistic activities. Theiractivities were higher in order of C, D, A, B and E.