Famoxadone
Famoxadone is a fungicide to protect agricultural products against various fungal diseases on fruiting vegetables, tomatoes, potatoes, curcurbits, lettuce and grapes. It is used in combination with cymoxanil. Famoxadone is a QI, albeit with a chemistry different from most QIs. It is commonly used against Plasmopara viticola, Alternaria solani, Phytophthora infestans, and Septoria nodorum.
Molecular interaction
Famoxadone is of lesser interaction strength at the Q pocket than some other QIs, for example, azoxystrobin. This is because azoxystrobin and such interact more centrally in the Q pocket than does famoxadone.Resistance management
Although it has a different chemistry, famoxadone shows full cross-resistance with the rest of the main FRAC group 11 that it belongs to, which is almost entirely strobs. It has not shown cross-resistance with the 11A subgroup however. As with all QIs there is a high risk of resistance development and so pesticide stewardship is important.Populations of P. infestans and A. solani in northern and western Europe are not known to be resistant to famoxadone.