Effects of fungicides and antifungal agents on Olpidium root rot of spinach in a hydroponic culture

Abstract

Olpidium root rot is a disease of spinach grown in hydroponic culture. It causes browning of the roots of spinach, growth delay, and a serious reduction in yield. However, there is no information about control measures. Thus, we obtained preliminary data to explore the efficacy of fungicides and antifungal materials, which have potential to control Olpidium root rot. Azoxystrobin, oxathiapiprolin, phosphorous acid, and silver were found to be effective against Olpidium root rot.