Field Control Effect of Nine Fungicides on Rapeseed Powdery Mildew
Abstract：Powdery mildew is a common disease in rapeseed, which has a significant impact on the quality and yield of rapeseed. In order to screen fungicides with better control effects on rapeseed powdery mildew, this study determined the field control effects of nine fungicides on rapeseed powdery mildew. The results showed that the average control effect of the nine tested fungicides on rapeseed powdery mildew was above 70%. Among them, the 10% azoxystrobin + tebuconazole ultra-low volume liquid agent and the 50% methiocarb + mancozeb suspension agent had better control effects, which were significantly better than the other fungicides. The control effects after two applications were 85.08% and 83.66%, respectively, seven days later. It is recommended to rotate the use of the 10% azoxystrobin + tebuconazole ultra-low volume liquid agent and the 50% methiocarb + mancozeb suspension agent for the control of rapeseed powdery mildew in production.
Keywords：Rapeseed powdery mildewFungicidesField control effect
Publication Date：2025-06-15
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 35-37 )