Fenpyrazamine is primarily used as a fungicide in agriculture, especially in the control of powdery mildew on a variety of crops including grapes, cucurbits, and cereals. It is effective at low application rates and works by inhibiting fungal respiration, disrupting energy production within the pathogen. Its systemic properties allow it to be absorbed and distributed within plant tissues, providing both preventive and early curative action. Fenpyrazamine is often included in integrated pest management programs due to its favorable environmental profile and low impact on non-target organisms. It is also valued for its compatibility with many other agrochemicals, making it suitable for use in tank mixes to broaden the spectrum of disease control.