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[Objective] To study the control efficiency of several fungicides on spot blight in Scrophularia ningpoensis Hemsl.[Method] Scrophularia ningpoensis Hemsl.son shoots were respectively soaked in 4 fungicides before planting,and then their control efficiencies on field diseases were investigated after onset;field control experiment against disease was carried out to screen the effectual chemicals for the control of this disease.[Result] By soaking son shoots,4 fungicides could effectively control spot blight and significantly improve survival rate of Scrophularia ningpoensis Hemsl.seedling.The control efficiency of 80% carbendazim at 1∶800 concentrations against spot blight was the highest(67.1%) ,followed by 70% thiophanate-methyl at 1∶1 000 concentrations(65.6%) .All fungicides could achieve better control efficiency in the early stage of spot blight.[Conclusion] Treatment of son shoots with fungicides combined with field spraying control could effectively control spot blight in Scrophularia ningpoensis Hemsl.and minimize losses.
[Objective] To study the control efficiency of several fungicides on spot blight in Scrophularia ningpoensis Hemsl. [Method] Scrophularia ningpoensis Hemsl.son shoots were each soaked in 4 fungicides before planting, and then their control efficiencies on field diseases were investigated after onset; field control experiment against disease was carried out to screen the effectual chemicals for the control of this disease. [Result] By soaking son shoots, 4 fungicides could effectively control spot blight and significantly improve survival rate of Scrophularia ningpoensis Hemsl.seedling. The control efficiency of 80% carbendazim at 1: 800 concentrations against the spot blight was the highest (67.1%), followed by 70% thiophanate-methyl at 1: 1000 concentrations (65.6%). All fungicides could achieve better control efficiency in the early stage of spot blight. [Conclusion] Treatment of son shoots with fungicides combined with field spraying control could effectively control spot blight in Sc rophularia ningpoensis Hemsl.and minim losses.