Famoxadone is primarily used as a fungicide in agriculture, especially for controlling fungal diseases in crops such as grapes, potatoes, tomatoes, and leafy vegetables. It is effective against a range of pathogens, including downy mildews and other oomycete species, by inhibiting mitochondrial respiration in the target fungi. Due to its protective and curative properties, it is often applied as a foliar spray to prevent infection and to manage existing outbreaks. Famoxadone is commonly formulated in combination with other fungicides, such as cymoxanil, to enhance efficacy and reduce the risk of resistance development. Its systemic activity allows it to be absorbed by plant tissues, providing longer-lasting protection.