Evaluation of the Field Efficacy of Different Fungicides against Sclerotinia Stem Rot in Rapeseed
Abstract：Rapeseed is a major oil crop in Suzhou County, and its production is often severely affected by sclerotinia stem rot. This study systematically evaluated the field efficacy of four commonly used fungicides against rapeseed sclerotinia stem rot, aiming to screen for an efficient fungicide and provide a scientific basis for the control of this disease. The experimental results showed that all tested fungicides could effectively control rapeseed sclerotinia stem rot and had a positive impact on rapeseed yield; among them, the combination of 20% fluxapyroxad SC + 25% prochloraz EW showed the best efficacy (83.33%). When combined with Yishibang organic water-soluble fertilizer, the efficacy increased to 88.89%, and the yield increased by 24.86%. It is recommended that in the early flowering stage of rapeseed, 50 mL of 20% fluxapyroxad SC + 50 mL of 25% prochloraz EW per 667 m² be applied, along with Yishibang fertilizer, to achieve effective control of sclerotinia stem rot and improve yield.
Keywords：RapeseedSclerotinia Stem RotFluxapyroxadProchloraz
Publication Date：2025-10-15
Online Publishing Date：2025-11-07(First online date of this platform, not the publication date of the document)
Pages：3( 51-53 )