Eco‐friendly thifluzamide/SiO2 oil‐in‐water Pickering emulsion with high adhesion on leaf for improving fungicidal efficacy

Abstract BACKGROUND Thifluzamide (THI) is a globally significant thiazole amide fungicide, particularly effective against Rhizoctonia solani . Because of its limited efficacy at traditional dosages, we constructed an eco‐friendly oil‐in‐water (O/W) Pickering emulsion utilizing silanized SiO 2 nanoparticles (THI/SiO 2 Pickering emulsion). RESULTS The THI/SiO 2 Pickering emulsion exhibited excellent dispersion, with an average droplet size of ~170 nm. In comparison with a commercial suspension concentrate (SC) of THI, the THI/SiO 2 Pickering emulsion demonstrated better interface properties and improved anti‐droplet bounce performance. A fungicidal assay revealed that THI/SiO 2 Pickering emulsion was more effective than commercial SC in controlling R. solani . CONCLUSION These findings show that the THI/SiO 2 Pickering emulsion possessed superior interfacial properties and fungicidal activity, indicating potential application in the management of R. solani . © 2025 Society of Chemical Industry.