Comparative Study on the Effectiveness and Benefits of Different Fungicides for the Control of Sclerotinia Stem Rot in Rapeseed
Abstract：To screen for fungicides with good efficacy against rapeseed sclerotinia stem rot and optimal cost-effectiveness, a field trial was conducted from March to May 2025 in winter rapeseed fields using nine types of fungicides. The results showed that 35% fluquinconazole + tebuconazole SC and 200 g/L fludioxonil SC had the highest disease control efficacy, at 84.8% and 83.8%, respectively, with average economic benefits of 617.14 yuan/667m² and 612.21 yuan/667m². However, due to their relatively high application costs (both at 60 yuan/667m²), they can be used as control agents for high-yield fields, dry land continuous cropping fields, and years with severe occurrence of rapeseed sclerotinia stem rot. 30% prothioconazole OD achieved a disease control efficacy of 80%, with an average economic benefit of 606.37 yuan/667m² and moderate application cost (30 yuan/667m²), making it the preferred conventional fungicide for farmers to control rapeseed sclerotinia stem rot in years with moderate to severe disease incidence.
Keywords：Rapeseed sclerotinia stem rotFungicidesDisease control efficacyControl benefits
Publication Date：2025-12-15
Online Publishing Date：2026-01-16(First online date of this platform, not the publication date of the document)
Pages：4( 36-38,49 )