Fungicide resistance is an increasing problem in high-value crops, representing one of the most important challenges in disease control and causing increased management costs and decreased marketable yield. Detecting resistance and finding ways to solve the problem have become critical to optimizing resources and protecting growers’ bottom lines.
According to the Fungicide Resistance Action Committee (FRAC), fungicide resistance “refers to an acquired, heritable reduction in sensitivity of a fungus to a specific anti-fungal agent (fungicide).”
Fungicide resistance continues to be an issue for growers and consultants. Understanding the key elements of fungicide resistance will help extend the use of available chemistries and provide peace of mind when disease occurs.