Survival of Passalora fulva during winter in tomato cultivation under rain shelter

Abstract

Winter survival of tomato leaf mold fungus (Passalora fulva) was investigated in Hida City, Gifu Prefecture. Conidia placed on the field soil on December 13, 2012 died within a month, while those placed 1 m above the ground in the field and 3 m above the ground in the storehouse survived until the end of the experiment (May 14, 2013). This result suggests that conidia overwintering on agricultural materials become the primary inocula in the subsequent growing season.