en.Wedoany.com Report on Mar 23rd, Against the backdrop of increasing resistance in agricultural mites and rising environmental safety standards, Hailir Pharmaceutical Group Co., Ltd. has initiated registration trials for its independently developed new acaricide, Fluoximethiol, which is set to be launched in the market.

This compound was discovered by Hailir in 2020 and received its Chinese common name in 2023. It belongs to the trifluoroethyl sulfide class of acaricides. It works by inhibiting the mitochondrial fatty acid β-oxidation pathway and blocking ATP energy production, leading to the death of harmful mites. Its mode of action differs from existing mainstream acaricides, resulting in no cross-resistance.

Laboratory bioassay results show that Fluoximethiol achieves a mortality rate exceeding 90% against Tetranychus cinnabarinus at a low concentration of 0.5 mg/L. In field control trials, application concentrations of 25 to 50 mg/L effectively controlled Panonychus citri. The product is effective against all developmental stages of harmful mites—eggs, larvae, nymphs, and adults—with a residual efficacy period of over 28 days. It possesses both contact and stomach poison activity and exhibits strong penetration ability into leaves.

Fluoximethiol has no adverse effects on mammals, bees, or aquatic organisms and is suitable for various economic crops such as citrus, apples, strawberries, melons, tomatoes, and tea plants. Hailir has initiated registration trials for this product as a new pesticide and has established a patent portfolio covering the new compound, crystal forms, and formulations.