Rice blast, caused by Pyricularia oryzae, is among the most significant plant diseases affecting global rice production. This pathogen causes major yield losses by damaging both leaves and shoots (neck) of the rice plant. 

Control strategies currently rely heavily on a limited set of fungicides, with roughly 60% of the market depending on just three FRAC groups: Triazoles (demethylation inhibitors, Group 3), Strobilurins (quinone outside inhibitors, Group 11) and Tricyclazole (melanin biosynthesis inhibitors, Group 16.1). These fungicide classes, each containing widely used and cost-effective active ingredients, are facing mounting regulatory pressure due to concerns about their environmental persistence, toxicity profiles, and long-term safety.  

Regulatory bans and restrictions in key markets such as the European Union are already limiting the options available to rice-exporting countries. This trend raises serious concerns about the long-term viability of current control measures and signals a growing need for more sustainable, effective, and globally compliant alternatives to manage this destructive disease.