The Survival in Soil of Itersonilia Pastinacae Channon, the Cause of Parsnip Canker

Abstract

When parsnip roots, naturally infected with Itersonilia pastinacae Channon, were buried in the field, the fungus was still viable after 12 months. When the stem apical meristems ofthe roots were removed to promote their more rapid decomposition, the fungus did not survive burial longer than 7 months.