Longwind Crop Science USA LLC (Longwind USA) officially announced that its new compound fungicide product HARQUEBUS Plus SC (Prothioconazole19% +Tebuconazole 19% SC) will be fully launched in the USA market in 2026.  Leveraging the core formulation technology advantages of its parent company Yifan Biotech Group, the product is developed for controlling a wide range of crop diseases with both protective and curative effects. It will provide local growers with efficient and stable crop protection solutions, facilitating the green and high-quality development of agriculture.

     As a key strategic product for Longwind's market expansion in the USA, HARQUEBUS Plus SC is formulated by combining prothioconazole with tebuconazole, both of which are from triazole chemical family. Although both act on the ergosterol synthesis pathway of fungal cell membranes, they target different sites and thus pose no cross-resistance risk, achieving synergistic effect after compounding. Specifically, prothioconazole features strong systemic activity and exhibits special efficacy against diseases such as Fusarium head blight. Tebuconazole, with excellent permeability and a long persistence period, complements prothioconazole to significantly broaden the fungicidal spectrum.

     So HARQUEBUS Plus SC can effectively control wheat diseases including Fusarium head blight, Powdery mildew and Rusts (such as stripe rust and leaf rust), Septoria Leaf spot and Tan spot in wheat and barley; Leaf Spot, Rusts and Stem rot in peanuts; Eye spot, Rusts, Southern and Northern leaf Blight in corn; truly realizing "one product for multiple disease control" and greatly improving the efficiency of crop management.

     In terms of product performance and application experience, HARQUEBUS Plus SC also delivers outstanding results. Adopting advanced suspension concentrate processing technology, the product features uniform and fine particles, high suspension rate, rainfastness, and stable, long-lasting persistence. Its excellent systemic translocation ensures that the active ingredients are quickly absorbed by crop leaves and uniformly translocate upward and downward within the plant, providing multiple effects of prevention, curation, and eradication. Whether for prevention before disease occurrence or treatment in the early stage, it can achieve ideal control results.

     Meanwhile, HARQUEBUS Plus SC exhibits extremely high safety on a variety of crops including wheat, corn and peanuts. Application will not have adverse effects on key growth processes such as flowering, grain filling, and fruit setting. Additionally, it can extend the lifespan of functional leaves, laying a solid foundation for yield increase and quality improvement. Furthermore, the formulation offers broad adaptability, being compatible with multiple application methods such as large-scale mechanical spraying and UAV (unmanned aerial vehicle) application, thus meeting the operational needs of different planting scales.

     Currently, the global fungicide industry is undergoing a transformation toward greenization and intelligence, with the U.S. market witnessing a sustained surge in demand for high-efficiency, low-toxicity, and environmentally friendly pesticide products. The launch of HARQUEBUS Plus SC not only precisely meets market needs but also fills the product gap of the Longwind brand in the USA compound fungicide, marking a crucial step for Longwind to deepen its footprint in the USA crop protection market. In the future, Longwind USA will continue to integrate the group's core resources in R&D, registration, and marketing. Taking the launch of HARQUEBUS Plus SC as an opportunity, it will provide USA growers with more innovative and reliable crop protection solutions, helping to increase crop yield and quality while promoting the sustainable development of agriculture.