Laboratory screening of fungicides against potato scab and Chinese cab-bage soft rot
SHI Ke
XU Ying
HAN Songhan
LIU Haixu
SHI Ying
CHEN Yufei
Abstract：To preliminarily screen fungicides with potential control effects against potato common scab and Chinese cabbage soft rot,this study compared the control efficacy of 34 fungicides(including non-copper chemical fungicides,copper-based fungicides and biological fungicides)against the two diseases through indoor plate antibacterial tests and in vitro control efficacy tests.The results showed that the in vitro control efficacy of biological fungicides and copper-based fungicides were significantly higher than that of non-copper chemical fungicides.For potato scab and Chinese cabbage soft rot,the most effective biological fungicide was 1000 billion CFU·g-1 Bacillus subtilis wettable powder(in vitro control efficacy of 77.67%and 83.53%,respectively),and the most effective copper based fungicide was 80%bordeaux mixture wettable powder(in vitro control efficacy of 71.88%and 78.46%,respectively).In conclusion,1000 billion CFU·g-1 Bacillus subtilis wettable powder and 80%bordeaux mixture wettable powder can be used as the preferred fungicides for the control of the two diseases.Priority should be given to biological fungicides and copper-based fungicides in field fungicide screening for potato scab and Chinese cabbage soft rot,which provides scientific support for the green and efficient management of the two diseases.
Keywords：Potato scabChinese cabbage soft rotPlate antibacterial testIn vitro control efficacy test
Publication Date：2026-03-05
Online Publishing Date：2026-03-26(First online date of this platform, not the publication date of the document)
Pages：11( 201-211 )