Phytochemicals to suppress Fusarium head blight in wheat-chickpea rotation

► Volatile organic compounds (VOCs) in wheat-chickpea rotation crops inhibit Fusarium. ► Wheat-produced VOCs are generally less potent than chickpea-produced VOCs. ► 2-Ethyl-1-hexanol is highly potent but scarcely produced in wheat. ► Variation in 2-ethyl-1-hexanol in 17 wheat type supports VOC-based genotype selection. ► VOCs induced in leaves are also induced in roots with potential rhizosphere impacts.