Effects of Seeding Bed Media and Fungicide on Control of Clubroot Disease of Chinese cabbage Caused by Plasmodiophora brassicae

Hong, Soon Sung; Kim, Jin Young; Park, Kyeong Yeol

Research in Plant Disease 2003;9(2):64-67.
Published online June 30, 2003.

배추 뿌리혹병(Plasmodiophora brassicae) 방제를 위한 육묘용 상토와 농약처리 효과

홍순성, 김진영, 박경열

Effects of Seeding Bed Media and Fungicide on Control of Clubroot Disease of Chinese cabbage Caused by Plasmodiophora brassicae

Soon Sung Hong, Jin Young Kim, Kyeong Yeol Park

Abstract

Clubroot disease of Chinese cabbage has extremely occurred in recent years. Conventional soils such as sandy loam soil (saprolite) and clay soil (yellow soil) as bed media combined with field soil application of fungicidal chemicals were tested for the control of clubroot disease. Using sandy loam soil and clay soil as plug seedling bed media efficiently reduced clubroot disease occurrence down to 21.7% and 14.1%, respectively compared to peatmoss (75.7%) and Baroco soil (36.6%) when seedling plants were transplanted into previouslyinfected Yoncheon field. Application of flusulfamide and azoxystrobin to previsouly-infected soil prior to transplanting also effectively reduced disease incidence, especially when combined with growing seedlings in sandy loam or clay soil media. In conclusion, flusulfamide application prior to trnasplanting as well as utilizing sandy loam and clay soil as a plug bedding media may effectively reduce the occurrence of clubroot disease of Chinese cabbage.

Key Words: control, clubroot disease, Plasmodiophora brassicae