Adama has announced that its fungicide active ingredient flumetylsulforim has been classified as having a unique mode of action for cereal crops by the Fungicide Resistance Action Committee (FRAC).
Gilboa is the trade name for flumetylsulforim, an imino-tosyl-pyrimidinone chemistry which has been classified as Group 32 by FRAC. This new mode of action in cereals targets nucleic acid metabolism, a biochemical pathway that has never previously been utilised by cereal fungicides.
Gilboa provides valuable protection against key diseases in cereals and oilseed rape, including septoria and sclerotinia, offering the industry a powerful option for disease resistance management, says Adama MD Ben Miles “Gilboa represents a major step forward in fungicide innovation, providing growers with an entirely new way to combat fungal pathogens in cereals and oilseed rape. Its novel mode of action, along with its compatibility with existing fungicides, makes it a vital addition to disease management strategies.”
With diseases such as septoria having developed increasing resistance to existing fungicides, including SDHIs, azoles and strobilurins, Adama considers it a game-changer. “It provides much-needed diversity in fungicide options, which is especially critical as all recent cereal fungicide launches have been of similar modes of action. By expanding the range of active ingredients available to agronomists and farmers, Gilboa provides reliable disease control whilst also reducing the risk of resistance development.”
Adama has conducted a significant number of trials which have shown that Gilboa consistently delivers outstanding results: “In wheat trials, Gilboa delivered superior septoria control compared to existing solutions,” Ben adds. “Gilboa also provided extended disease control, with a lasting effect of up to 35 days after final application. Trials also revealed that more than 70% of the flag leaf area remained green for a longer period after the last treatment, contributing to higher yields.”
Gilboa was submitted for registration in 2023 and is expected to receive approval in Great Britain in 2027 and in the EU in 2029. Field events will take place in the UK during June 2025, enabling the industry to witness Gilboa’s technical performance firsthand.
